For reference, I have the Avon 310 Lite RIB (which sounds like the Compact that GordMay referenced). This model has the fold-down transom, to fit in a bag. We have an 8 hp Yamaha, 2-stroke. With two 200-lb men
, it will plane. On takeoff, you need to lean forward (bow) to get the stern up. Just a short distance. At WOT, will go 23 mph.
With my wife, daughter and myself, that is about 450 lbs total. It will still get up on plane, but just takes a bit more running room to do so. It helps some that weight can be distributed a bit more with three than two.
With four adults, we just count on not getting on plane. However, I was trying to keep the weight down on the solar
arch panel (dinghy is hoisted from the water
using that structure), wanted load light enough where I didn't have to remove the motor
, and the combo works well for the two of us - which is situation 90% of the time.