Original Posted By: "Dick N."
Raymond wrote:>the only thing that makes me wonder about trying to get full rated horsepower and more>from a car engine is -I doubt they're built for continuous duty at the figures unless it's an> industrial engine that pulls the load in more or less full time service I would> expect there to be problems getting rid of the heat at the least.but here I> am getting ready to fly behind a Corvair engine that was never designed as far> as I know for continuous full power application. but I'd hope to be able to> throttle it back some when at altitude.if it is propped right>From William Wynne's website=2C http://www.flycorvair.com:> In the Corvair automobile=2C the engine produced 180 horsepower in the turbo-charged form. All 1964-69 model engines utilize the same crankshaft=2C rods=2C pistons=2C cases=2C etc. By flat rating the engine for 90hp continuous=2C the engine is only stressed to 50% of its rating in the automobile. No other auto engine conversion can make this claim. In the automobile=2C the engine redlines at 5=2C500 rpm. My aircraft conversion produces 75% power at half this rpm. These two facts form the cornerstone of the Corvair engine=92s reliability as an aircraft power plant.> The Corvair engine turns more than 3=2C000rpm at 60mph in the automobile. They can run for hours at a time over 4=2C500rpm. Asking the engine to produce 75% power=2C the brake mean effective pressure (BMEP) is lower at 2=2C800rpm than at 2=2C000rpm.Oscar ZunigaAir Camper NX41CCSan Antonio=2C TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________
Pietenpol-List: how stressed is the Corvair on an Air Camper?
Re: Pietenpol-List: Re: high flight
Original Posted By: "K5YAC"
MarkThat sounds nice, just remember tat with your left arm hanging out, you will be in a left turn.Dick----- Original Message -----
MarkThat sounds nice, just remember tat with your left arm hanging out, you will be in a left turn.Dick----- Original Message -----
Pietenpol-List: Re: high flight
Original Posted By: jorge lizarraga
Re: Pietenpol-List: how stressed is the Corvair on an Air Camper?
Original Posted By: Oscar Zuniga
Some things, about this Corvair thing,are decieving, Just because an engine is redlined at 5500. If it's turning at 4500, sure doesn't mean it's producing 75% power.If it's on a test stand driving nothing, it will produce very little , and produce very little heat.NOW take the Corvair car, and climb one of those 10 mile long W. Virginia highway hills, with the throttle near the floor, throttle plate open, (big explosions going on inside.) That's another story. Will it last? How many hills before it breaks?Cars coast, airplanes are a constant drag. They say a full sized V8 vehicle, cruising down the highway only uses about 40HP to keep moving.walt evansNX140DL ----- Original Message -----
Some things, about this Corvair thing,are decieving, Just because an engine is redlined at 5500. If it's turning at 4500, sure doesn't mean it's producing 75% power.If it's on a test stand driving nothing, it will produce very little , and produce very little heat.NOW take the Corvair car, and climb one of those 10 mile long W. Virginia highway hills, with the throttle near the floor, throttle plate open, (big explosions going on inside.) That's another story. Will it last? How many hills before it breaks?Cars coast, airplanes are a constant drag. They say a full sized V8 vehicle, cruising down the highway only uses about 40HP to keep moving.walt evansNX140DL ----- Original Message -----
Pietenpol-List: how stressed is the Corvair on an Air Camper?
Original Posted By: hvandervoo(at)aol.com
Re: Pietenpol-List: piet mods
Original Posted By: Jeff Boatright