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Old 10-25-2007, 08:00 AM
RatliffFranklin RatliffFranklin is offline
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Join Date: Jan 2007
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Originally Posted by NADreamcatcher View Post
Hello, I'm North American Dreamcatcher. The angle on Arvil's rear wing is wrong, It's not a car. Controlling thrust at three points...bad idea, especially forward where thrust can create vortex's over the hull. The design would be in excess of 1,800 lbs. I don't think there is enough room for htp amount for one kilo run. What happens when one of those foils hits a fish, or worse @350mph? Canard stubs look good but they should be neutral, not positive lift. How are they controlled? How do you control the trim tab effeciently at 350+? Good ideas Franklin...been there. Keep it coming and thank you for the Historical info on the attempts.

NAD
Thanks for the comments. It's hard to imagine a 20 foot concept like Arvil's weighing much more than 900 lbs dry. The rocket Funny Cars were heavier than the dragsters and even they only weighed about 850 to 900 lbs. The red and gold car shown at the beginning of this thread only weighed about 500 lbs.

A tank two feet in diameter and three feet long will hold 70 gallons (812 lbs) of 90% hydrogen peroxide, enough to sustain 10,000 lbs thrust for about 9 seconds. With fuel and driver the fully loaded gross weight would be around 1,800 lbs, although this would diminish rapidly during the burn.
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