Re: What type of bottom end?
That would be a jet drive or better known as a jet pump and I know nothing about them.
This is from a site:
The pump jet was commissioned by the U.S. Military to provide safety for marines when they were in the water. This pump jet lower unit provides many features that are attractive to boaters including safety, performance, power, and durability. We were concerned about the performance of this unit and were impressed with how it pushed our test boat. We noticed exceptional acceleration, great turning ability, smooth trolling, and perfect transition while going in forward neutral and reverse.
