sea-worthy amphibious craft?

[Tiny Turnip]

Is self launching a useful phrase ? You surely aint going to want to commute far on road in an iguana, but I guess if you can afford one, you probably won't need to commute...

Not sure what counts as seaworthy. Here's a couple of very different films, each very capable and very entertaining in its own way...

http://youtu.be/3mr_pCrhTkk

http://youtu.be/UO4cw565V98

[spidennis]

I wish these links still worked, I'd like to see this!

Originally Posted by tspeer

Derek Kelsall has a design for an amphibious catamaran. Wheels are mounted in the topsides of the hulls:



The hulls fold under the bridge deck:


On the water, the wheels act as built-in fenders. On land, the boat can be trailered on the wheels. I don't see any reason why the wheels couldn't be powered, or why the design couldn't be scaled up. The beams could be hydraulically actuated.

Note how the beams are used to lever the hulls into place, and a cross-member added to lock them in place:



Given the seaworthiness of the catamaran hull form, I think this meets your criteria of a seaworthy amphibious vehicle.

[rwatson]

Originally Posted by spidennis

I wish these links still worked, I'd like to see this!

http://www.kelsall.com/Designs/KSSAK18.htm


and other photos

[spidennis]

Originally Posted by rwatson

http://www.kelsall.com/Designs/KSSAK18.htm


and other photos

thanks!