Penn Yan Pocket Drive

[Patriot]

Any pro's or con's?

[Capt Vince Pierleoni]

If you are talking about the original patented "tunnel drive", the Pros are complete protection of underwater gear(prop, shaft, rudder) and extreme shallow draft capability. It was originally designed for the military by the Penn Yan boat company so the boats could be beached and relaunched without damage. This design also allows props to be changed without having to pull boat if in a pinch by backing into a boat ramp and donning waders. 

Cons are less control/steerage in single engine models, slightly less efficiency, and the possibility of small branches/logs getting wedged in tunnel.