|
|
Ernest,
Are you sure that the "peak torque" number you're looking at isn't at the
propeller, instead of the flywheel?
Would make more sense. She'll gain a bunch depending on the gear ratio.
Jack Ford
----- Original Message ----- From: "Ernest Christley" <echristl@cisco.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, January 25, 2005 6:37 AM
Subject: [FlyRotary] Re: Flex plate <> Flywheel [FlyRotary] Re: flexplate
Lehanover@aol.com wrote:
>My best race engine had 154.3 foot pounds at 7,800 RPM (229.4 HP)
>Best power at 9,400 RPM (244.9 HP) 136.7 foot pounds.
>
>That 800 foot pounds at 7,800 would give you 1,188 HP.
>
>Probably not a factor. RPM X Torque / 5252 = HP
>
>The flex plate is not a problem.
>
>Lynn E. Hanover
>
>
I'm with you, Lynn, and I agree with your math and the fact that the
bolts are strong enough. But the 800ft/lb (right or wrong) was
referring to the peak torque, which will be significantly greater than
the average torque which would be derived from the HP figures.
I just think that it's an important point that anything in the
drivetrain should be designed with the peak torque in mind. (lest we
doth shaketh the lesser pieces, and the airplane doth falleth from the
sky).
>> Homepage: http://www.flyrotary.com/
>> Archive: http://lancaironline.net/lists/flyrotary/List.html
|
|