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.

I built this model during four long years. my Lulonga is nearly whole scratchbuilt model (about 75 cm long) except the steering wheel and position lamps.
The model has a plywood and balsa hull construction ,plywood decks,from hard polystyrene sheets made superstructure,laminated with veneer. Sidewheels with skew paddles, two DC 12V independent electric motors with gearboxes controlled by ESC. Electric LED lights, steam sound module, sirene and horn.Tx/Rx 6 channel HK 2,4GHz.
completion expected in spring 2014
More infos about building you find at > www.paddleducks.co.uk <

some videos are here at Model Boats too >
http://mdlbt.com/19852

wiring diagram you can see here in my albums
http://tomarack.rajce.idnes.cz/RC_model_Lulonga#lulongaelschema1.jpg

First time in the water for my 1/48 scratch built model of MV Overchurch Mersey Ferry. No extra ballast required and she responded well to the transmitter.

My lockdown project MV Overchurch (Mersey Ferry) 1/48 scale scratch built, radio controlled. Still a bit of work needed to finish her

More work on the little boat today #lockdownfun

Haven' seen water in a while so off to the harbor . This was one of the first models I'd ever built in 1974 . I went with my girlfriend to a little creek at Confederation park just in front of the old Hutches fish & chip shack put it in and the rudder jammed full over and it corkscrewed and sank I jumped in without realizing water was only about a foot deep and two feet muck . Moral of the story is she's still my wife .

Seen here at Buxton is - 'Ellipsis' an International One Metre Class yacht .
Built from lines drawings purchased from the designer Frank Russell.
Neville hand laminated the hull in epoxy glass, and the fin and rudder in epoxy carbon. Hull finished in cellulose paint.
Information provided by Neville Black.

Not something you see every day! Saw a 'Sealegs' boat coming in from over the horizon and it eventually came straight onto and up the beach past the Orewa surf club. It then proceeded about 300m down the main road (holding up the traffic) to the petrol station to fill up, then went back and down the beach, into the water and away. Guy broke a number of rules doing this but looked like one of those 'don't give a stuff' people, His wife and tiny kid (the only one with a life jacket) were sitting in the back all the time.

The Sealegs is an NZ designed and built (built in Albany- Auckland) boat sold (and copied) all round the world. Really amazing piece of kit. Drive is hydraulic, and driven by a small self start diesel motor in its' own compartment. If I ever won Lotto I'd certainly be looking at one😁 They have a special drive on trailer as well.

Not my lake in the thumbnail, don't know where that came from😐

Just a little Hamilton Bay run of my scratch built R/C North Rock tug replica .The real tug was built in 1956 for the Alexandra Towing Co. Liverpool I took a little liberty in the color found out that the cabin was white & my ability to record with my I Phone & steer model ain't to good but it's a sturdy hull .

Scratch built 1:12 Shannon Ilfracombe 13 09

This amazing model is SCRATCH built (including the plug for the hull!!!) by John Sluman

Most fittings are machined metal, some incredcible skill in construction.

Boat in this video is running on brushed motors - it is now converted to brushless.

A US Navy ARS ( Auxiliary Rescue Salvage ship), built to 1/48th scale. Twin screw with working radar, lights, anchor, and fire monitor. Built from a bare hull, with a lot of Thanks to Shapeways 3D printed parts. She is shown, at anchor, with a friend USN ATF ( Auxiliary tug Fleet) in the back ground.

"Dire Straits 2" is an American Lobster Fishing Boat - scratch built from plans built by Keith Holmes.