No4
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Everything posted by No4
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I think if you could generate sea level pressure with fat turbo's and a little blower at 35,000 feet, and rig up a snazzy intercooler and get the charge air down to -50'F, that would give the air going in the motor a density altitude of minus 7000ft. How about speed? The CAFE report said 190kts Vne. They look like they could go faster, is it aerodynamic or materiel limitation?
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The Cozy looks like a nice plane. Here in NZ they look at you like you are a nutter if you start muttering about canards. It's all boring pipers and cessna's down here. Up in Auckland the flight school has bought Diamond A40's with Thielert 135hp turbodiesels, and apparently a twin; both with glass cockpits. The Thielert doesn't look like it could pull more than a Tomahawk. I'll go and have a look soon. Do you happen to know the highest altitude anyone has taken a cozy to? I think my gearbox will weigh 30lbs for the volvo D5.
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It's still a figment of my imagination at this point, along with the rest of it. My plan is to go hard out on it from June. I want to build a canard, at the moment the cozy looks good, which design would you reccommend? Is it possible to get plans for the Rutans ?
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Is it so heavy? A Lycoming 540 makes 250hp and weighs in at 356 lbs. A Lycoming 360 makes 200hp and weighs 270 lbs. A Subaru making 180 hp weighs 340 lbs. The Volvo will make 300hp and weighs 352 lbs. The diesel should then use 50 lbs less fuel per hour than a petrol @ 200hp. As for the prop, I'm going to run a 3 blade CSU with 50% reduction.
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Volvo make a 5 cylinder 2.3 20v Turbo Diesel, 160hp @4000rpm, 245lbft @1750rpm; 160kg alloy, water cooled. The same mass produced motor with a a non turbo petrol head has 400hp@9000rpm in race cars, and 800hp@6000rpm in turbo petrol race cars. I hope to achieve 200hp continous @<20,000ft, with 300hp available for take off.