Dumas Whitehall-WWII PCE
The Whitehall is a PCE, Patrol Craft Escort. At 1/96 scale it’s still small, around 23 inches long with a beam of 4 inches. This is the first kit I’ve built where the hull is in 2 longitudinal halves….anyway, let’s get started!!
The first thing the builder does is to build a temporary stand, which is provided in the kit. It’s made of expanded pvc. Then you get to assemble the hull. This is not abs, but a form of styrene, but not stiff like a static model. You basically get the 2 halves lined up then use thin ca and glass tape to reinforce the joint. There was extra tape in the kit so I reinforced the bow and stern areas as well. It took a little fiddling to get the hull to line up. You then add the 2 bulkheads and fwd deck.
The kit, in usual Dumas fashion, does not come with running gear. I sourced a Caldercraft 4mm fineline shaft and tube from my stock, an old Graupner rudder and a Robbe steering arm. Ca works best on this plastic, epoxy’s ok, Stabilit Express seems to work well, but you have to scuff the mating parts in any case. Anyway, once the stuffing box is lined up and then ca’d in place, you then build up the skeg out of plastic, then fill and sand. Once I was done I caoated the inside joint of the tube and rudder tube with Stabilit.
Now, this boat is designed to use the Dumas 4.8 volt motor, basically a Speed 300, and a 4.8 volt pack…..nope. On the Dumas website this motor is rated at 4.8-6 volts, with 7200 rpm being it’s upper limit. Now, the question is, it’s that rpm measured at 4.8 or 6 volts? I emailed Dumas with that query and got an answer same day..measured at 6 volts. That gives the motor an effective kv of 1200 rpm per volt, roughly 5600 rpm on a 4.8 volt pack. I was going to use a geared Speed 400 but the gearbox is offset, putting the motor higher in the hull than I liked. So…I went with my latest fave, the Zippkits 650kv 36mm outrunner, and a 2 cell lipo. Fully charged I’ll be down maybe 300 rpm, and the boat needs ballast anyway, so the weight of the motor is negligible. I’ll have decent speed, and that motor will never, ever get hot. I use that motor in my Taucher, and it comes back a touch over ambient, so we’re good.
The back deck, as well as the mid deck are supposed to be removable. I don’t like that many big holes in my boat. I decided to mount my rudder servo just aft and to the side of the motor, instead of aft of the rear bulkhead. I then cut a hatch in the aft deck for rudder linkage access, and glued the aft deck in place.
The superstructure is built up of balsa, expanded pvc and styrene. Nothing new here, but as the boats so small it can get fiddly, but I got it done. I have the rub and spray rails to install, and then the hull is ready for paint. The superstructure is built in 3 levels, then assembled and painted. Then it’s off to guns, gun directors, hatches, rails…and the fittings for this kit are no longer available. Some of the NTWS club members are offering to print what I need, I’ll just have to source and scratch the rest. Anyway, that’s it for tonight,,
Cash
Cheers, Pete😊
Peter.😃