RE: PBY-5A Catalina
Hi Jack:no expert on PBYs but would not use rt.thrust on both engines would go for out thrust on each not both same way?Keep it on water till it wants to take off horsing it into air is sure tip stall as you have found out!!Have been told by a fellow who flys one quite a little that they really need 25s but people put 15s in and they make a fine boat!Look on the seaplane section there are a couple of fellows who realy know these things and try to contact one of them for advice!Just doing the GP electric one will use CR props on it but is easy on electric!Every thing I see here claims not a big asset,had a dualist with them flew beautiflly but I understand they fly nice without them to!Good Luck!!