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#1
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On Thu, 10 Nov 2005 15:01:46 -0600, Darrel Toepfer
wrote: MrV wrote: Hey guys i'm a new pilot that really wants to build his own craft. help me with this one issue. I want to use a chevy ls2 or ls7 as the power plant in my craft. snip the aircraft i want to design is a very cab foward design with a pusher prop and the engine would be mounted approx mid craft. i'm new at this and besides having an engineering background i really have no exp building an aircraft so any opinions would be helpful Car transissions aren't designed to take any thrust. I also suspect a phenominon called P factor would twist the end off the tranny the first time you started up the engine with a prop attached. |
#2
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Drew Dalgleish wrote:
Darrel Toepfer wrote: Car transissions aren't designed to take any thrust. I also suspect a phenominon called P factor would twist the end off the tranny the first time you started up the engine with a prop attached. If you're going to snip out what I typed, then please remove the quote reference to me as well... |
#3
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now that would be an issue but one i would solve by attaching the
tranny to a "GearBox" attached to frame to take thrust pressuer and that being attached to the prop. kinda similiar to a rear diff |
#4
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![]() MrV wrote: now that would be an issue but one i would solve by attaching the tranny to a "GearBox" attached to frame to take thrust pressuer and that being attached to the prop. kinda similiar to a rear diff You are trying to say "thrust bearing", I think. Look over carefully a Soloy Allison fixed wing conversion. Intuitively, turning a propeller is a smoother load than the diff on a car. In reality it is not. It took the marine industry twenty or more years to realize you could use a car ingine in a boat, but only if its "native" conditions vis-a-vis those of heavy slow turning boat engines were carefully looked at. Dedicated small boat engines for inboard use, gas or diesel, have become a thing of the past as autoderivative (with "automotive" meaning heavy truck as well as car) engines are used exclusively up to almost 1000 hp today. The LyCon museum pieces have been saved this fate by a confluence of arcane and arbitrary certification requirements, legal paranoia induced by Wichita's long misrule by drunks and bitch-ass widows, and physics-weight is irrelevant in boats but critical in aircraft, and most autoderivative engine cores are heavy. |
#5
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![]() "MrV" wrote in message oups.com... now that would be an issue but one i would solve by attaching the tranny to a "GearBox" attached to frame to take thrust pressuer and that being attached to the prop. kinda similiar to a rear diff Weight, weight, weight! -- Jim in NC |
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