Wanted something different so got a Proboat River Jet hopefully try it out Wednesday.
I have a Proboat PBR with the twin jets. It is quite a nippy little thing in standard form.However........................
It took on water !
The Jets have NO sealing gasket between themselves and the hull. The Impellor shafts had NO grease.
After applying grease inside both Imperllor shafts and some thick grease to seal at the transom all was well and no more take on of water via the jet units.
I have found that splashed up water gathered in the rear well. This has been cured by drilling through the transom and installing two drain tubes, one each side.
I am now considering installing more drain tubes either side of the cockpit.
Water can also find it's way down through rotating gun turret, so I've added a skirt around it and sealed it at the bottom.
Finally, I found it difficult to install a 7.2V NiMH throught the hole provided. The battery has been replace by a Stubby 7.4V 2S Lipo which easily slides in/out as required.
For an RTR model it requires some firkling with this sealing and draining business but once set up OK it is great fun to run and looks quite impressive on the water. You have to be careful with turns at high throttle, it can easily 'spin' out and take on some water !!!