After about 6yrs of the model being 'laid up', I thought it was about time to get it back in 'survey' again, and get some better videos with new camera. Checked it over, cleaned the smoke system (glycerin mixture had separated) oiled everything up and off to the pond. Ran as well as ever and everything still worked which was pleasing.
For those who missed the build blog way back, the model is 36", glass over strip planked balsa, has twin 28mm 2000kv inrunners with twin 60A car escs, twin GT Power sound units, a smoke and water exhaust system (developed by myself and Graham 96, -which he and Mike Turpin successfully fitted to their excellent fireboats) and lighting. Uses 2 -2s 2200mah LiPos for the motors, and an 1800mah 2s LiPo for the air and water pumps.
Boat was shipped to the RNZAF in 1940 and was eventually sold to a private owner in the late 50s. It is still around in Auckland after suffering 3 major modifications to the coamings, and is now fully airconditioned, and can be operated from an I Pad. Today powered with a Detroit 8V96 in place of twin Grey Marine (Detroit) 671s, which replaced the 3 original Napier sea lions. Did 38knts with the 3 Napiers, (1500hp) and does 22knots today with a single 500hp Detroit. It was the only one of the 22 built to be sold in the southern hemisphere. The only other one running is HSL 102 in the UK
I have been on board once in 1968 when it was still in original form, and then again 50yrs later in its' present form.
JB
https://www.youtube.com/watch?v=jddfjpKjkJs
{"text":"After about 6yrs of the model being 'laid up', I thought it was about time to get it back in 'survey' again, and get some better videos with new camera. Checked it over, cleaned the smoke system (glycerin mixture had separated) oiled everything up and off to the pond. Ran as well as ever and everything still worked which was pleasing.\n\nFor those who missed the build blog way back, the model is 36\", glass over strip planked balsa, has twin 28mm 2000kv inrunners with twin 60A car escs, twin GT Power sound units, a smoke and water exhaust system (developed by myself and Graham 96, -which he and Mike Turpin successfully fitted to their excellent fireboats) and lighting. Uses 2 -2s 2200mah LiPos for the motors, and an 1800mah 2s LiPo for the air and water pumps.\n\nBoat was shipped to the RNZAF in 1940 and was eventually sold to a private owner in the late 50s. It is still around in Auckland after suffering 3 major modifications to the coamings, and is now fully airconditioned, and can be operated from an I Pad. Today powered with a Detroit 8V96 in place of twin Grey Marine (Detroit) 671s, which replaced the 3 original Napier sea lions. Did 38knts with the 3 Napiers, (1500hp) and does 22knots today with a single 500hp Detroit. It was the only one of the 22 built to be sold in the southern hemisphere. The only other one running is HSL 102 in the UK\n \nI have been on board once in 1968 when it was still in original form, and then again 50yrs later in its' present form.\n\nJB\nhttps://www.youtube.com/watch?v=jddfjpKjkJs","subject":"Recommissioning the RC British Powerboat Co 64ft RNZAF HSL 'W1'","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=jddfjpKjkJs"}
Recommissioning the RC British Powerboat Co 64ft RNZAF HSL 'W1'
After about 6yrs of the model being 'laid up', I thought it was about time to get it back in 'survey' again, and get some better videos with new camera. Checked it over, cleaned the smoke system (glycerin mixture had separated) oiled everything up and off to the pond. Ran as well as ever and everything still worked which was pleasing.
For those who missed the build blog way back, the model is 36", glass over strip planked balsa, has twin 28mm 2000kv inrunners with twin 60A car escs, twin GT Power sound units, a smoke and water exhaust system (developed by myself and Graham 96, -which he and Mike Turpin successfully fitted to their excellent fireboats) and lighting. Uses 2 -2s 2200mah LiPos for the motors, and an 1800mah 2s LiPo for the air and water pumps.
Boat was shipped to the RNZAF in 1940 and was eventually sold to a private owner in the late 50s. It is still around in Auckland after suffering 3 major modifications to the coamings, and is now fully airconditioned, and can be operated from an I Pad. Today powered with a Detroit 8V96 in place of twin Grey Marine (Detroit) 671s, which replaced the 3 original Napier sea lions. Did 38knts with the 3 Napiers, (1500hp) and does 22knots today with a single 500hp Detroit. It was the only one of the 22 built to be sold in the southern hemisphere. The only other one running is HSL 102 in the UK
I have been on board once in 1968 when it was still in original form, and then again 50yrs later in its' present form.
I built this about 40 years ago, quite a rarity now I believe. Has not been in the water for about 30 years. I plan on bringing it up to date with speed controller and lipos as it used to use large heavy batteries and manual speed controller powered by servo. 👍
{"text":"I built this about 40 years ago, quite a rarity now I believe. Has not been in the water for about 30 years. I plan on bringing it up to date with speed controller and lipos as it used to use large heavy batteries and manual speed controller powered by servo. \ud83d\udc4d","subject":"FOR SALE Veron Vosper Target Towing Launch 28\"","media":[{"id":"1543783065","name":"1543783065.jpg","caption":"","url":"https://beta.model-boats.com/media/1543783065/l","thumbUrl":"https://beta.model-boats.com/media/1543783065/s","isImage":true,"ext":"jpg"},{"id":"1543783017","name":"1543783017.jpg","caption":"","url":"https://beta.model-boats.com/media/1543783017/l","thumbUrl":"https://beta.model-boats.com/media/1543783017/s","isImage":true,"ext":"jpg"},{"id":"1543783066","name":"1543783066.jpg","caption":"","url":"https://beta.model-boats.com/media/1543783066/l","thumbUrl":"https://beta.model-boats.com/media/1543783066/s","isImage":true,"ext":"jpg"},{"id":"1543791203","name":"1543791203.jpg","caption":"","url":"https://beta.model-boats.com/media/1543791203/l","thumbUrl":"https://beta.model-boats.com/media/1543791203/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
I built this about 40 years ago, quite a rarity now I believe. Has not been in the water for about 30 years. I plan on bringing it up to date with speed controller and lipos as it used to use large heavy batteries and manual speed controller powered by servo. 👍
At the club pond today I have completed the Orca to my satisfaction. the crew figures are complete and fitted in situ, Matt Hooper at the helm, captain Quint up front with the harpoon gun, chief Brody serving out the smelly chum at the stern. The battery ran for at least 1 hour, it’s a 3s lipo 2200,100c when coupled to the charger it had 70 % left in
{"text":"At the club pond today I have completed the Orca to my satisfaction. the crew figures are complete and fitted in situ, Matt Hooper at the helm, captain Quint up front with the harpoon gun, chief Brody serving out the smelly chum at the stern. The battery ran for at least 1 hour, it\u2019s a 3s lipo 2200,100c when coupled to the charger it had 70 % left in","subject":"Orca complete with crew","media":[{"id":"167864810765","name":"167864810765","caption":"","url":"https://beta.model-boats.com/media/167864810765/l","thumbUrl":"https://beta.model-boats.com/media/167864810765/s","isImage":false,"ext":"file"},{"id":"167864811043","name":"167864811043","caption":"","url":"https://beta.model-boats.com/media/167864811043/l","thumbUrl":"https://beta.model-boats.com/media/167864811043/s","isImage":false,"ext":"file"},{"id":"167864811154","name":"167864811154","caption":"","url":"https://beta.model-boats.com/media/167864811154/l","thumbUrl":"https://beta.model-boats.com/media/167864811154/s","isImage":false,"ext":"file"},{"id":"167864811212","name":"167864811212","caption":"","url":"https://beta.model-boats.com/media/167864811212/l","thumbUrl":"https://beta.model-boats.com/media/167864811212/s","isImage":false,"ext":"file"}],"youtubeUrl":""}
At the club pond today I have completed the Orca to my satisfaction. the crew figures are complete and fitted in situ, Matt Hooper at the helm, captain Quint up front with the harpoon gun, chief Brody serving out the smelly chum at the stern. The battery ran for at least 1 hour, it’s a 3s lipo 2200,100c when coupled to the charger it had 70 % left in
Many thanks for the photos - a really impressive model!!
Each to his own, but I much prefer small water craft modelled to 1\24, 1\16 or even 1\12 scale - rather than far larger ships unavoidably modelled on a tiny scale.
With best wishes. Dr John F. Leeds and Bradford. MBC. 😊😊😊
Hi Rogal,
Many thanks for the photos - a really impressive model!!
Each to his own, but I much prefer small water craft modelled to 1\24, 1\16 or even 1\12 scale - rather than far larger ships unavoidably modelled on a tiny scale.
With best wishes. Dr John F. Leeds and Bradford. MBC. 😊😊😊
Built from old kit. I built one before and the Bluefin one too from Dumas. I cut the hull separation so a space is there. In general it was fun. I had to buy an older Rc as only 72 MHz works under water for maybe 3 ft. The ghz signal works surface only. I cut out all the hull flooding holes as per pictures I gathered. Basically built as per blueprints inside except used newer motor controller that can take LiPo batteries. Excuse the messy background.
{"text":"Built from old kit. I built one before and the Bluefin one too from Dumas. I cut the hull separation so a space is there. In general it was fun. I had to buy an older Rc as only 72 MHz works under water for maybe 3 ft. The ghz signal works surface only. I cut out all the hull flooding holes as per pictures I gathered. Basically built as per blueprints inside except used newer motor controller that can take LiPo batteries. Excuse the messy background.","subject":"Russian Sun Aluka","media":[{"id":"166412349557","name":"166412349557","caption":"","url":"https://beta.model-boats.com/media/166412349557/l","thumbUrl":"https://beta.model-boats.com/media/166412349557/s","isImage":false,"ext":"file"},{"id":"166412349535","name":"166412349535","caption":"","url":"https://beta.model-boats.com/media/166412349535/l","thumbUrl":"https://beta.model-boats.com/media/166412349535/s","isImage":false,"ext":"file"}],"youtubeUrl":""}
Built from old kit. I built one before and the Bluefin one too from Dumas. I cut the hull separation so a space is there. In general it was fun. I had to buy an older Rc as only 72 MHz works under water for maybe 3 ft. The ghz signal works surface only. I cut out all the hull flooding holes as per pictures I gathered. Basically built as per blueprints inside except used newer motor controller that can take LiPo batteries. Excuse the messy background.
Like your sub!! We have several sub guys in our club, at least one of them uses 2.4. He runs an extension for his antenna up the sail (conning tower) and hides it in either the periscope or antenna. His boats are static divers, but he stays at periscope depth when he submerges. The boats set up to blow ballast and full up planes if he loses contact. Not trying to criticize anything you’re doing, just letting you know 2.4 is doable with restrictions. Most of the ponds here in North Texas are too murky for much below periscope depth anyway.
Anyway, good luck with your sub! Let me know how it turns out.
Cash
Like your sub!! We have several sub guys in our club, at least one of them uses 2.4. He runs an extension for his antenna up the sail (conning tower) and hides it in either the periscope or antenna. His boats are static divers, but he stays at periscope depth when he submerges. The boats set up to blow ballast and full up planes if he loses contact. Not trying to criticize anything you’re doing, just letting you know 2.4 is doable with restrictions. Most of the ponds here in North Texas are too murky for much below periscope depth anyway.
Anyway, good luck with your sub! Let me know how it turns out.
Cash
I had thought of a float with antenna but in he end use a MHz transmitter was easier. I had sold all mine so I picked up one from eBay. Actually I wound up with two one AM one FM. FM worked better. The dc motor controller was from a car as it had reverse capability plus switchable micas or LiPo. The Ghz band gets water attenuation so it won’t work under water well. Bathtub test showed at least a few feet under was ok. Only thing o don’t like is you seal electronics so it has to be really tested. Battery is on a plastic box like that can open fir access but I put a soda bottle cap structure to access charge connector anyway it’s fun
I had thought of a float with antenna but in he end use a MHz transmitter was easier. I had sold all mine so I picked up one from eBay. Actually I wound up with two one AM one FM. FM worked better. The dc motor controller was from a car as it had reverse capability plus switchable micas or LiPo. The Ghz band gets water attenuation so it won’t work under water well. Bathtub test showed at least a few feet under was ok. Only thing o don’t like is you seal electronics so it has to be really tested. Battery is on a plastic box like that can open fir access but I put a soda bottle cap structure to access charge connector anyway it’s fun
This is s short video of the first trial of the Police Launch. I was very happy with the performance. After 30 minutes of running in fairly rough conditions, I was pleased to note that not even a drip of water entered the hull.
She performed very well but I will wait for a calmer day before deciding on any changes needed to the ballast.
I stopped the run after 30 minutes only because it was very cold. The LiPo battery, 2 cell 2200 mAh, performed faultlessly. Even after being in storage charge for more that 2 years, it still was only reading 3.78 volts per cell after the 30 minutes. My estimate is that it will run for 40 minutes or more before getting close to the lower limit. I was running at full speed for most of the test. My only negative from the test is that Krick have settled for a motor which is at the bottom of the power range. A pity as I am sure that an increase in motor speed would be of benefit to the model.
Peter.😊
{"text":"This is s short video of the first trial of the Police Launch. I was very happy with the performance. After 30 minutes of running in fairly rough conditions, I was pleased to note that not even a drip of water entered the hull.\nShe performed very well but I will wait for a calmer day before deciding on any changes needed to the ballast.\nI stopped the run after 30 minutes only because it was very cold. The LiPo battery, 2 cell 2200 mAh, performed faultlessly. Even after being in storage charge for more that 2 years, it still was only reading 3.78 volts per cell after the 30 minutes. My estimate is that it will run for 40 minutes or more before getting close to the lower limit. I was running at full speed for most of the test. My only negative from the test is that Krick have settled for a motor which is at the bottom of the power range. A pity as I am sure that an increase in motor speed would be of benefit to the model.\nPeter.\ud83d\ude0a","subject":"Krick Police Launch Trial.","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=aQkE0fc9ZB4"}
This is s short video of the first trial of the Police Launch. I was very happy with the performance. After 30 minutes of running in fairly rough conditions, I was pleased to note that not even a drip of water entered the hull.
She performed very well but I will wait for a calmer day before deciding on any changes needed to the ballast.
I stopped the run after 30 minutes only because it was very cold. The LiPo battery, 2 cell 2200 mAh, performed faultlessly. Even after being in storage charge for more that 2 years, it still was only reading 3.78 volts per cell after the 30 minutes. My estimate is that it will run for 40 minutes or more before getting close to the lower limit. I was running at full speed for most of the test. My only negative from the test is that Krick have settled for a motor which is at the bottom of the power range. A pity as I am sure that an increase in motor speed would be of benefit to the model.
Peter.😊
Looks real nice Peter👍- monitor works well and radar looks spot on, - nice job👍 You can always go up a bit in motor size if you find cruising not to your liking. It does let you stay out longer though, and enjoy it more.
JB
Looks real nice Peter👍- monitor works well and radar looks spot on, - nice job👍 You can always go up a bit in motor size if you find cruising not to your liking. It does let you stay out longer though, and enjoy it more.
JB
Well Peter,
Finally she hit the water and she looks really good.
I bet you are glad to see her in the wet stuff after the time she has taken to make.
Great work.
One down and many more to go or should i say Finnish LOL!!
Martin555.
Well Peter,
Finally she hit the water and she looks really good.
I bet you are glad to see her in the wet stuff after the time she has taken to make.
Great work.
One down and many more to go or should i say Finnish LOL!!
Martin555.
Short vid taken by a friend recently, of the model, towed by the RC scratch built Jeep -(taken with his tablet, - a bit shaky but he is over 80) I probably shouldn't have been doing circles around him, but we were doing this in a carpark behind his apartment, (magic location by the way, right on a marina.) Had trouble finding reverse due to the EL Cheepo ESC,- have a new one coming. Jeep uses a geared 550 motor on 3s LiPo.
Boat is featured on waitematawoodys.com today as well, with all the big boats,- quite a privilege, as they don't often feature models! Lucky to have had my ST and HSL on there in the past also, as they were models of ex NZ RNZAF boats which were being featured.
https://waitematawoodys.com/ (site for all NZ built classic Launches)
Video by Ken R.
{"text":"Short vid taken by a friend recently, of the model, towed by the RC scratch built Jeep -(taken with his tablet, - a bit shaky but he is over 80) I probably shouldn't have been doing circles around him, but we were doing this in a carpark behind his apartment, (magic location by the way, right on a marina.) Had trouble finding reverse due to the EL Cheepo ESC,- have a new one coming. Jeep uses a geared 550 motor on 3s LiPo. \n\nBoat is featured on waitematawoodys.com today as well, with all the big boats,- quite a privilege, as they don't often feature models! Lucky to have had my ST and HSL on there in the past also, as they were models of ex NZ RNZAF boats which were being featured.\n\nhttps://waitematawoodys.com/ (site for all NZ built classic Launches)\n\nVideo by Ken R.","subject":"Hartley cabin boat on trailer","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=hs6-DmBKRHM"}
Short vid taken by a friend recently, of the model, towed by the RC scratch built Jeep -(taken with his tablet, - a bit shaky but he is over 80) I probably shouldn't have been doing circles around him, but we were doing this in a carpark behind his apartment, (magic location by the way, right on a marina.) Had trouble finding reverse due to the EL Cheepo ESC,- have a new one coming. Jeep uses a geared 550 motor on 3s LiPo.
Boat is featured on waitematawoodys.com today as well, with all the big boats,- quite a privilege, as they don't often feature models! Lucky to have had my ST and HSL on there in the past also, as they were models of ex NZ RNZAF boats which were being featured.
I'm afraid my days of building real boats are long past. I have difficulty in finding enough strength to perform even the simplest tasks, Alice has to come to my aid for almost everything these days. I was very pleased that I managed to finish the rigging of my latest barge project a few days ago with only the slightest intervention from her -and that's a model!. Actually the only time I ever built a boat from a plan was when someone gave me a part built Wharram cat. The rest of the time I built on the old adage of if it looks right, it probably is. And, blowing my own trumpet, it always seemed to work for me.
Cheers, Nerys
Hi JB,
I'm afraid my days of building real boats are long past. I have difficulty in finding enough strength to perform even the simplest tasks, Alice has to come to my aid for almost everything these days. I was very pleased that I managed to finish the rigging of my latest barge project a few days ago with only the slightest intervention from her -and that's a model!. Actually the only time I ever built a boat from a plan was when someone gave me a part built Wharram cat. The rest of the time I built on the old adage of if it looks right, it probably is. And, blowing my own trumpet, it always seemed to work for me.
Cheers, Nerys
Hi Nerys, you're doing well to do what you are doing still under the circumstances, and you are not just sitting in a wicker chair staring out the window. Your models are great and a credit to you, and you are obviously enjoying them. I'm the same (re - if it looks right.......) as most of my models, (boats and planes) are scratch built or highly modified kits or resurrected and improved bin jobs from other modellers.
The only model boat I've built from a proper plan, was my Vic Smeed MTB, the rest have been from drawings from model magazines. I built a 15ft delta hulled racer in the late 70s using the 'looks right' method, and powered it with a 75hp outboard. Managed to get 50mph out of it, and it handled quite well. Blew the motor up before I could refine it unfortunately. As kid we built 8ft skimmers, powered with a 10hp outboard which were a lot of fun as well.
I've enjoyed restoring 5 small boats (plus a f/glass clinker sailing dinghy for my son) and completely fitting out my Hartley from a shell, but the price of materials is getting prohibitive these days, and approaching the price of a small new car to build anything around 20ft. My 15ft day sailer for example (built 1986) would probably cost around $12,000 to build today complete. Not a lot of home building these days unfortunately due to the cost,- cheaper to buy a second hand boat ready to sail or motor.
I think we are lucky to be able to build from an idea without a plan and have it work, as many people are not as fortunate. Perhaps boating experience gives you an idea of how things should work. We have a top boatbuilding company here who started building fantastic launches, starting with a 'looks right' half model,- taking measurements from it and scaling them up. Has worked well for them since the 50s
Stay Safe.
JB
Hi Nerys, you're doing well to do what you are doing still under the circumstances, and you are not just sitting in a wicker chair staring out the window. Your models are great and a credit to you, and you are obviously enjoying them. I'm the same (re - if it looks right.......) as most of my models, (boats and planes) are scratch built or highly modified kits or resurrected and improved bin jobs from other modellers.
The only model boat I've built from a proper plan, was my Vic Smeed MTB, the rest have been from drawings from model magazines. I built a 15ft delta hulled racer in the late 70s using the 'looks right' method, and powered it with a 75hp outboard. Managed to get 50mph out of it, and it handled quite well. Blew the motor up before I could refine it unfortunately. As kid we built 8ft skimmers, powered with a 10hp outboard which were a lot of fun as well.
I've enjoyed restoring 5 small boats (plus a f/glass clinker sailing dinghy for my son) and completely fitting out my Hartley from a shell, but the price of materials is getting prohibitive these days, and approaching the price of a small new car to build anything around 20ft. My 15ft day sailer for example (built 1986) would probably cost around $12,000 to build today complete. Not a lot of home building these days unfortunately due to the cost,- cheaper to buy a second hand boat ready to sail or motor.
I think we are lucky to be able to build from an idea without a plan and have it work, as many people are not as fortunate. Perhaps boating experience gives you an idea of how things should work. We have a top boatbuilding company here who started building fantastic launches, starting with a 'looks right' half model,- taking measurements from it and scaling them up. Has worked well for them since the 50s
Stay Safe.
JB
Fitted the new 550 45T brushed motor as a replacement for the ancient and slow 70s Graupner monoperm. Goes a lot better now and has a decent speed range. Handles and rides quite well for a skinny boat. Prop is a Graupner 40mm 2 blade (don't know the pitch, -fairly fine) Using a 2200mAh 2S LiPo battery which probably gives around an hours running slowly, or 30 mins of hooning around.
Battery was only charged to 8.25v and ended up at 7.7v. (45%) after about 3/4 hr. I'll probably fit a Hobbywing ESC as well, for a bit better reverse action, as the El cheapo car one is a bit slow finding reverse at times.
{"text":"Fitted the new 550 45T brushed motor as a replacement for the ancient and slow 70s Graupner monoperm. Goes a lot better now and has a decent speed range. Handles and rides quite well for a skinny boat. Prop is a Graupner 40mm 2 blade (don't know the pitch, -fairly fine) Using a 2200mAh 2S LiPo battery which probably gives around an hours running slowly, or 30 mins of hooning around. \n\nBattery was only charged to 8.25v and ended up at 7.7v. (45%) after about 3/4 hr. I'll probably fit a Hobbywing ESC as well, for a bit better reverse action, as the El cheapo car one is a bit slow finding reverse at times.","subject":"FAIRACRE BROADS CRUISER, NEW MOTOR AND ESC","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=OrOzz5yB1Q4"}
Fitted the new 550 45T brushed motor as a replacement for the ancient and slow 70s Graupner monoperm. Goes a lot better now and has a decent speed range. Handles and rides quite well for a skinny boat. Prop is a Graupner 40mm 2 blade (don't know the pitch, -fairly fine) Using a 2200mAh 2S LiPo battery which probably gives around an hours running slowly, or 30 mins of hooning around.
Battery was only charged to 8.25v and ended up at 7.7v. (45%) after about 3/4 hr. I'll probably fit a Hobbywing ESC as well, for a bit better reverse action, as the El cheapo car one is a bit slow finding reverse at times.
Typical yorkshire weather, after 5 minutes it chucked it down so had to make a quick retreat. used just one 2200 3s lipo for now but need a bigger lake/pond really as can only give full power for 3-4 seconds, so stop -go is not good but was hoping to get some good photos-videos, but the rain stopped play till another day.
Edit, forgot to mention. most of run on centre prop only. the last 5 seconds or so is full power, well nearly.
{"text":"Typical yorkshire weather, after 5 minutes it chucked it down so had to make a quick retreat. used just one 2200 3s lipo for now but need a bigger lake/pond really as can only give full power for 3-4 seconds, so stop -go is not good but was hoping to get some good photos-videos, but the rain stopped play till another day.\nEdit, forgot to mention. most of run on centre prop only. the last 5 seconds or so is full power, well nearly.","subject":"brave borderer 4th sea trial!","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=Ggl0JU_dm1o"}
Typical yorkshire weather, after 5 minutes it chucked it down so had to make a quick retreat. used just one 2200 3s lipo for now but need a bigger lake/pond really as can only give full power for 3-4 seconds, so stop -go is not good but was hoping to get some good photos-videos, but the rain stopped play till another day.
Edit, forgot to mention. most of run on centre prop only. the last 5 seconds or so is full power, well nearly.
Looks good Roger,
Whilst the comments on paralleling LI-POs are correct. I have never had an issue. I have used two identical cells and fully charge each separately until the charger cuts out.
Would never try two partially discharged cells as then the current might flow from one to the other creating the overcharge rate problem
Recently decided that rather than use two cells, why not use one at once? This reduces weight and eliminates the concern.
Think you need a larger pond! Glad to see the weather is consistent with my memorys.
Rowen
Looks good Roger,
Whilst the comments on paralleling LI-POs are correct. I have never had an issue. I have used two identical cells and fully charge each separately until the charger cuts out.
Would never try two partially discharged cells as then the current might flow from one to the other creating the overcharge rate problem
Recently decided that rather than use two cells, why not use one at once? This reduces weight and eliminates the concern.
Think you need a larger pond! Glad to see the weather is consistent with my memorys.
Rowen
I've replaced the old 6v sealed wet battery with a lipo 3s,11.1 volt 2200mhz, 100c spectrum smart battery. so the 1st run was cautious i just fired up the centre prop to see how she performed, well i was surprised at the turn of speed she had on just 1 prop, and how well she planed, it was a little awkward filming and controlling the boat by myself as i was the only one pond side. this was not without mishaps though, see 2nd video
After checking the boat over she was found to be unmarked and no bits missing, not bad to say she hit the pontoon at full speed, took off and plunged back in at the other side.
So the second run i started on the centre prop and then opened her up on the outer 2, she shot forward and immediately stalled, dead in the water. luckily i could reach her with the ponds barge pole to pull her to the side. i found the fuse had blown , i had fitted a 20amp mini flat fuse, i didn't have a 30amp only another 20amp which blew just as quick, upon opening up the outer props.
any ideas anyone or will a 30amp do the job, or a 2s battery? help any suggestions considered.
Roger
{"text":"I've replaced the old 6v sealed wet battery with a lipo 3s,11.1 volt 2200mhz, 100c spectrum smart battery. so the 1st run was cautious i just fired up the centre prop to see how she performed, well i was surprised at the turn of speed she had on just 1 prop, and how well she planed, it was a little awkward filming and controlling the boat by myself as i was the only one pond side. this was not without mishaps though, see 2nd video\nAfter checking the boat over she was found to be unmarked and no bits missing, not bad to say she hit the pontoon at full speed, took off and plunged back in at the other side. \nSo the second run i started on the centre prop and then opened her up on the outer 2, she shot forward and immediately stalled, dead in the water. luckily i could reach her with the ponds barge pole to pull her to the side. i found the fuse had blown , i had fitted a 20amp mini flat fuse, i didn't have a 30amp only another 20amp which blew just as quick, upon opening up the outer props.\nany ideas anyone or will a 30amp do the job, or a 2s battery? help any suggestions considered.\nRoger","subject":"Brave Borderer 2nd trial, new battery","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=2_EuOhsYltU"}
I've replaced the old 6v sealed wet battery with a lipo 3s,11.1 volt 2200mhz, 100c spectrum smart battery. so the 1st run was cautious i just fired up the centre prop to see how she performed, well i was surprised at the turn of speed she had on just 1 prop, and how well she planed, it was a little awkward filming and controlling the boat by myself as i was the only one pond side. this was not without mishaps though, see 2nd video
After checking the boat over she was found to be unmarked and no bits missing, not bad to say she hit the pontoon at full speed, took off and plunged back in at the other side.
So the second run i started on the centre prop and then opened her up on the outer 2, she shot forward and immediately stalled, dead in the water. luckily i could reach her with the ponds barge pole to pull her to the side. i found the fuse had blown , i had fitted a 20amp mini flat fuse, i didn't have a 30amp only another 20amp which blew just as quick, upon opening up the outer props.
any ideas anyone or will a 30amp do the job, or a 2s battery? help any suggestions considered.
Roger
Hi Ronan
Thanks for your input.
Its starting to make sense now.
I bit the bullitt and bought a lipo battery and charger. I ended with a spectrum smart 2200mhz,3s, 11.1v,100c.i had a choice of a 30c but thought it may not be man enough for 3 motors so looked at the 50c, but was out of stock, so i ended with the 100c it was the same price as the 50c anyway. The charger was a spectrum smart type to. This monitors the battery and hopefully does everything automatically.
Once again thanks for your help and encouragement
Roger
Hi Ronan
Thanks for your input.
Its starting to make sense now.
I bit the bullitt and bought a lipo battery and charger. I ended with a spectrum smart 2200mhz,3s, 11.1v,100c.i had a choice of a 30c but thought it may not be man enough for 3 motors so looked at the 50c, but was out of stock, so i ended with the 100c it was the same price as the 50c anyway. The charger was a spectrum smart type to. This monitors the battery and hopefully does everything automatically.
Once again thanks for your help and encouragement
Roger
Hi Roger,
You are learning well! A similar road to the one I travelled a couple of years ago.
Hard to see the fuse block on my Brave now, but here is one am assembling for my next project. Got my fuse blocks off Banggood, they offer both 4 and 6 fuse ones.
Used a 6 on the Brave as wanted a fuse per motor, currently using 30 A capacity. Should protect the 50 A ESCs. Bigger fuses and even re-settable ones can be fitted into the block if warranted.
The home made buss bar and battery connector are visible.
Hope this helps.
Rowen
100C should be more that adequate, mine is 30C. You should be able to drive a welder with it too!
Hi Roger,
You are learning well! A similar road to the one I travelled a couple of years ago.
Hard to see the fuse block on my Brave now, but here is one am assembling for my next project. Got my fuse blocks off Banggood, they offer both 4 and 6 fuse ones.
Used a 6 on the Brave as wanted a fuse per motor, currently using 30 A capacity. Should protect the 50 A ESCs. Bigger fuses and even re-settable ones can be fitted into the block if warranted.
The home made buss bar and battery connector are visible.
Hope this helps.
Rowen
100C should be more that adequate, mine is 30C. You should be able to drive a welder with it too![{"id":"162014088467","name":"162014088467","caption":"","url":"https:\/\/beta.model-boats.com\/media\/162014088467\/l","thumbUrl":"https:\/\/beta.model-boats.com\/media\/162014088467\/s","isImage":false,"ext":"file"}]
Part 1. ideal conditions; nearly 30°C, cool Bier at hand😜
Sea Scout built by Dad in the early sixties with a Taycol Target and 6V lead acid wet cells (very wet😡). Renovated and dragged into the 21st century over the last several months 😉
See Build Blog 'Sea Scout 'Jessica'' for details!
Motor: Propdrive 2830, 1000kV, 30mm 3 blade Raboesch prop. Quicrun 16BL30 (30A) ESC with BEC.
Tested with 3 battery types, all started with 99% measured capacity-
1. NiMh 4.2Ah 7.2V, nom. 408gm.
Result: Speed sedate (OK 😉scale river cruising!) No planing.
Max current: 3.6A
End status V / capacity left: At end of short run ca 3 mins. 7.78V 99%.
2. 2S LiPo 4.0Ah 7.4V nom. 257gm.
Result: Speed still sedate but due to lower batt weight at least the forefoot came out of the wet stuff! Max current: 4.1A
End status V / capacity left: At end of short run ca 3 mins. 8.25V 93%.
3. 3S LiPo 4.0Ah 11.1V nom. 315gm.
Result: Now we're getting somewhere!!😁
Good speed, manoeuvrability and planing 😊 Max current: 7.5A
End status: 11.95V 74% after several long runs, ca 20 mins total.
Estimated (extrapolated) endurance on a 4Ah LiPo around one hour - mostly 'full bore' - 'Pedal to the metal man' 😊
See also:
https://www.youtube.com/watch?v=oMUlSOaAREM
The competition!
https://www.youtube.com/watch?v=zPgYicA0yGw
Final run. (Beer was getting warm😁)
Cap'ns log entry:
Boat dead-weight w/o battery: 1.8kg.
Spray rails to be added!😲
Slight list to port to be trimmed.
Rudder servo to be reversed!!😲
Keel protection to be added: some scratches and flaking from stony sloping shore 🤔
Summary: much as expected👍 Forget anything less than 3S.
Anyone want to buy a batch (4) of new 2S 4Ah 45C Lipos? 'One careful owner'!
Happy boating people, Cheers Doug 😎
PS Many thanks to Camera girl Gisela 👍
Recorded in 1080p HD.
{"text":"Part 1. ideal conditions; nearly 30\u00b0C, cool Bier at hand\ud83d\ude1c\nSea Scout built by Dad in the early sixties with a Taycol Target and 6V lead acid wet cells (very wet\ud83d\ude21). Renovated and dragged into the 21st century over the last several months \ud83d\ude09\nSee Build Blog 'Sea Scout 'Jessica'' for details! \nMotor: Propdrive 2830, 1000kV, 30mm 3 blade Raboesch prop. Quicrun 16BL30 (30A) ESC with BEC.\nTested with 3 battery types, all started with 99% measured capacity-\n1. NiMh 4.2Ah 7.2V, nom. 408gm.\nResult: Speed sedate (OK \ud83d\ude09scale river cruising!) No planing.\nMax current: 3.6A\nEnd status V / capacity left: At end of short run ca 3 mins. 7.78V 99%.\n2. 2S LiPo 4.0Ah 7.4V nom. 257gm.\nResult: Speed still sedate but due to lower batt weight at least the forefoot came out of the wet stuff! Max current: 4.1A\nEnd status V / capacity left: At end of short run ca 3 mins. 8.25V 93%.\n3. 3S LiPo 4.0Ah 11.1V nom. 315gm.\nResult: Now we're getting somewhere!!\ud83d\ude01\nGood speed, manoeuvrability and planing \ud83d\ude0a Max current: 7.5A\nEnd status: 11.95V 74% after several long runs, ca 20 mins total.\nEstimated (extrapolated) endurance on a 4Ah LiPo around one hour - mostly 'full bore' - 'Pedal to the metal man' \ud83d\ude0a\n\nSee also: \nhttps://www.youtube.com/watch?v=oMUlSOaAREM\nThe competition!\nhttps://www.youtube.com/watch?v=zPgYicA0yGw\nFinal run. (Beer was getting warm\ud83d\ude01)\n\nCap'ns log entry:\nBoat dead-weight w/o battery: 1.8kg.\nSpray rails to be added!\ud83d\ude32\nSlight list to port to be trimmed.\nRudder servo to be reversed!!\ud83d\ude32\nKeel protection to be added: some scratches and flaking from stony sloping shore \ud83e\udd14\nSummary: much as expected\ud83d\udc4d Forget anything less than 3S.\nAnyone want to buy a batch (4) of new 2S 4Ah 45C Lipos? 'One careful owner'! \nHappy boating people, Cheers Doug \ud83d\ude0e\nPS Many thanks to Camera girl Gisela \ud83d\udc4d\nRecorded in 1080p HD.","subject":"Sea Scout 'Jessica' Sea Trial - at last!","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=b0BWJ3duzDw"}
Part 1. ideal conditions; nearly 30°C, cool Bier at hand😜
Sea Scout built by Dad in the early sixties with a Taycol Target and 6V lead acid wet cells (very wet😡). Renovated and dragged into the 21st century over the last several months 😉
See Build Blog 'Sea Scout 'Jessica'' for details!
Motor: Propdrive 2830, 1000kV, 30mm 3 blade Raboesch prop. Quicrun 16BL30 (30A) ESC with BEC.
Tested with 3 battery types, all started with 99% measured capacity-
1. NiMh 4.2Ah 7.2V, nom. 408gm.
Result: Speed sedate (OK 😉scale river cruising!) No planing.
Max current: 3.6A
End status V / capacity left: At end of short run ca 3 mins. 7.78V 99%.
2. 2S LiPo 4.0Ah 7.4V nom. 257gm.
Result: Speed still sedate but due to lower batt weight at least the forefoot came out of the wet stuff! Max current: 4.1A
End status V / capacity left: At end of short run ca 3 mins. 8.25V 93%.
3. 3S LiPo 4.0Ah 11.1V nom. 315gm.
Result: Now we're getting somewhere!!😁
Good speed, manoeuvrability and planing 😊 Max current: 7.5A
End status: 11.95V 74% after several long runs, ca 20 mins total.
Estimated (extrapolated) endurance on a 4Ah LiPo around one hour - mostly 'full bore' - 'Pedal to the metal man' 😊
See also:
The competition!
Final run. (Beer was getting warm😁)
Cap'ns log entry:
Boat dead-weight w/o battery: 1.8kg.
Spray rails to be added!😲
Slight list to port to be trimmed.
Rudder servo to be reversed!!😲
Keel protection to be added: some scratches and flaking from stony sloping shore 🤔
Summary: much as expected👍 Forget anything less than 3S.
Anyone want to buy a batch (4) of new 2S 4Ah 45C Lipos? 'One careful owner'!
Happy boating people, Cheers Doug 😎
PS Many thanks to Camera girl Gisela 👍
Recorded in 1080p HD.
Hi Will,
The videos were all taken at stage 3. 'Now we're getting somewhere' with the 3S LiPo.
As depicted in the report there wasn't anything worth filming on either the 7.2V NiMh or the 7.4V 2S LiPo. Plod plod boring! I wasn't really surprised. I just wanted to know 😉
Cheers, Doug 😎
Hi Will,
The videos were all taken at stage 3. 'Now we're getting somewhere' with the 3S LiPo.
As depicted in the report there wasn't anything worth filming on either the 7.2V NiMh or the 7.4V 2S LiPo. Plod plod boring! I wasn't really surprised. I just wanted to know 😉
Cheers, Doug 😎
Finally got a good day to try the new brushless motor. Boat goes 100% better now (if a bit noisier) 3s 25c 2200mAh liPo got a bit too hot, so probably need to up the C rate to 40 to keep it cooler (maybe install a fan as it's closed under the seat) It's pushing a 6lb boat with a 26mm jet with a 3000kV brushless so it has an excuse to get hot, (only got down to 3.7V/cell after that run, so not too bad). Runs with a more scale look now which is what I wanted. Took a bit of experimenting, but got there in the end. Thermostatic cooling fans for the motor worked well, and within 10 mins the motor was cool. Only used around 2/3 throttle so as not to stress the coupling too much (you can hear it protest a few times, - silicone tube slips slightly making it squeal)- automatic rev limiter😁
Sorry, vid is blurry again ☹️ (original's fine -HD) but something happens when it goes through my movie editor then to YT. Keep procrastinating about getting a better camera (or maybe it's just the editor. - More experimenting, this is getting tedious😐
{"text":"Finally got a good day to try the new brushless motor. Boat goes 100% better now (if a bit noisier) 3s 25c 2200mAh liPo got a bit too hot, so probably need to up the C rate to 40 to keep it cooler (maybe install a fan as it's closed under the seat) It's pushing a 6lb boat with a 26mm jet with a 3000kV brushless so it has an excuse to get hot, (only got down to 3.7V/cell after that run, so not too bad). Runs with a more scale look now which is what I wanted. Took a bit of experimenting, but got there in the end. Thermostatic cooling fans for the motor worked well, and within 10 mins the motor was cool. Only used around 2/3 throttle so as not to stress the coupling too much (you can hear it protest a few times, - silicone tube slips slightly making it squeal)- automatic rev limiter\ud83d\ude01\n\nSorry, vid is blurry again \u2639\ufe0f (original's fine -HD) but something happens when it goes through my movie editor then to YT. Keep procrastinating about getting a better camera (or maybe it's just the editor. - More experimenting, this is getting tedious\ud83d\ude10","subject":"HARTLEY FLARELINE, MOTOR MODS","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=pwOX3-3YM7Q"}
Finally got a good day to try the new brushless motor. Boat goes 100% better now (if a bit noisier) 3s 25c 2200mAh liPo got a bit too hot, so probably need to up the C rate to 40 to keep it cooler (maybe install a fan as it's closed under the seat) It's pushing a 6lb boat with a 26mm jet with a 3000kV brushless so it has an excuse to get hot, (only got down to 3.7V/cell after that run, so not too bad). Runs with a more scale look now which is what I wanted. Took a bit of experimenting, but got there in the end. Thermostatic cooling fans for the motor worked well, and within 10 mins the motor was cool. Only used around 2/3 throttle so as not to stress the coupling too much (you can hear it protest a few times, - silicone tube slips slightly making it squeal)- automatic rev limiter😁
Sorry, vid is blurry again ☹️ (original's fine -HD) but something happens when it goes through my movie editor then to YT. Keep procrastinating about getting a better camera (or maybe it's just the editor. - More experimenting, this is getting tedious😐
Hi Ron, haven't spent a huge amount due to the fact that all the electrical bits are very cheap ($1 ea for a voltage reg, $8-12 for a pump, $30 ea for a motor (bought 2 as the first was not fast enough) and jet unit, $15 for the ESC, a few JST plugs and wire, $3 smoke pen, few lengths of silicone tube etc, plus balsa and f/glass, -probably not a lot more than NZ $200. A lot of things you buy of course like resin and paint, usually have to be bought in bigger quantities than you would use on one model, and may be used on other projects, so it's hard to work out an exact cost. I think the hull was the most expensive part, due to the cost of balsa and resin.
Mostly a lot of time, (hate to work out the labour cost on any model at going rates,- probably in the thousands)!
JB
Hi Ron, haven't spent a huge amount due to the fact that all the electrical bits are very cheap ($1 ea for a voltage reg, $8-12 for a pump, $30 ea for a motor (bought 2 as the first was not fast enough) and jet unit, $15 for the ESC, a few JST plugs and wire, $3 smoke pen, few lengths of silicone tube etc, plus balsa and f/glass, -probably not a lot more than NZ $200. A lot of things you buy of course like resin and paint, usually have to be bought in bigger quantities than you would use on one model, and may be used on other projects, so it's hard to work out an exact cost. I think the hull was the most expensive part, due to the cost of balsa and resin.
Mostly a lot of time, (hate to work out the labour cost on any model at going rates,- probably in the thousands)!
JB
Managed to connect up the motor once all the drive bearings were in.. first video is with a 7.2v battery (which was actually nearly flat!) and then in the second video with a fully charged 11.1v lipo!
Might get the Atlantic RIB to plane yet..
{"text":"Managed to connect up the motor once all the drive bearings were in.. first video is with a 7.2v battery (which was actually nearly flat!) and then in the second video with a fully charged 11.1v lipo!\nMight get the Atlantic RIB to plane yet..","subject":"Outboard motor wired up","media":[{"id":"159895592917","name":"159895592917","caption":"","url":"https://beta.model-boats.com/media/159895592917/l","thumbUrl":"https://beta.model-boats.com/media/159895592917/s","isImage":false,"ext":"file"},{"id":"160304354433","name":"160304354433","caption":"","url":"https://beta.model-boats.com/media/160304354433/l","thumbUrl":"https://beta.model-boats.com/media/160304354433/s","isImage":false,"ext":"file"},{"id":"160304354985","name":"160304354985","caption":"","url":"https://beta.model-boats.com/media/160304354985/l","thumbUrl":"https://beta.model-boats.com/media/160304354985/s","isImage":false,"ext":"file"}],"youtubeUrl":""}
Managed to connect up the motor once all the drive bearings were in.. first video is with a 7.2v battery (which was actually nearly flat!) and then in the second video with a fully charged 11.1v lipo!
Might get the Atlantic RIB to plane yet..
