Interesting High Jack.-

[Sea Rider]

Came across this propelled barge that's used to damp concrete blocks to the sea floor to anchor different size boats in a bay near the city.



As the concrete blocks varies in size and weight the bow will incline towards sea and transom will rise accordingly. If counting with a fixed transom the engine will suffer from extreme prop aeration on its way to dampen site when carrying variable weight hanging from crane located at bow area.



This variable high jack solves the issue, just rise or lower OB accordingly with winch to provide the barge with best propulsion ever in any bow weight situation.



By gravity can flush the OB with fresh water by installing a high water tank connected to muffs. This high jack system could be applied to any boat's transom including toons.

Happy Boating

 

[alldodge]

I like it, but wonder if gravity only would be good for other faster boats. Get some bouncing going on and the drive comes out of the water

 

[Sea Rider]

If used on other boat applications would be a matter to lock in place the high jack when the sweet OB height has been finally reached after water experimentation on flat calm water cond. Chopping down or raising transom up when using clamp OB's will result in too much PITA work.

OTOH removing large OB's that weights a lot to raise or lower them playing with sviwel bracket's holes sometimes won't dial the sweet engine height if you like being a boat perfectionist achieving the least water drag on lower leg while increasing top prop thrust.

Happy Boating