New to Raingutter... need pics!
Posted: Mon Aug 07, 2006 10:13 pm
Anybody got pics of Catamaran designs?
I've read enough to know we are building the cat...
I have a laminar flow formula tucked away somewhere at home, would be awesome to scale it to our 2 pontoons and then try (with a Dremel) to match the profile. This is a declassified Navy high-speed torpedo design
I got a gazilion questions:
Should the boat track level with a steady air stream, or try to picth up at all?
Side bumping... plan for it or try to avoid it?
Pontoons = Balsa (BSA kits)... what to use for deck?
What kind of glue?
Sail design: We want max force, minimal drag and the force center (center of pressure?) as low as possible to the deck... anybody got suggestions?
Would something akin to a parachute (soft, collapsable) work? Can you (like a parachute) vent the "expended" air with vents in a way to further reduce drag?
Sail design: What material works best? We are trying to minimize boat weight.
Pontoon design: Does a pointy nose really buy any less hydro-drag? I am worried about having the nose (if tapering to a point) try to dip in the water... is this overcome by weight placement and sail placement?
Where to put the sail?
Are alternative materials to balsa allowed?
Any other thoughts? We are 200% new to this and our old Nemesis purposefully requested an "open" class to allow pre-built regattas to what was supposed to be a "build day of race" event.
Now that the white glove is on the ground, we need to respond (as we have in PWD and Cubmobile with success).
-Terry
I've read enough to know we are building the cat...
I have a laminar flow formula tucked away somewhere at home, would be awesome to scale it to our 2 pontoons and then try (with a Dremel) to match the profile. This is a declassified Navy high-speed torpedo design
I got a gazilion questions:
Should the boat track level with a steady air stream, or try to picth up at all?
Side bumping... plan for it or try to avoid it?
Pontoons = Balsa (BSA kits)... what to use for deck?
What kind of glue?
Sail design: We want max force, minimal drag and the force center (center of pressure?) as low as possible to the deck... anybody got suggestions?
Would something akin to a parachute (soft, collapsable) work? Can you (like a parachute) vent the "expended" air with vents in a way to further reduce drag?
Sail design: What material works best? We are trying to minimize boat weight.
Pontoon design: Does a pointy nose really buy any less hydro-drag? I am worried about having the nose (if tapering to a point) try to dip in the water... is this overcome by weight placement and sail placement?
Where to put the sail?
Are alternative materials to balsa allowed?
Any other thoughts? We are 200% new to this and our old Nemesis purposefully requested an "open" class to allow pre-built regattas to what was supposed to be a "build day of race" event.
Now that the white glove is on the ground, we need to respond (as we have in PWD and Cubmobile with success).
-Terry