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>-----Original Message-----
>From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of
>echristley@nc.rr.com
>Sent: Tuesday, September 14, 2004 11:24 AM
>To: Rotary motors in aircraft
>Subject: [FlyRotary] Re: Limp home mode
>
>I would think that a larger effect would be the
>intake air combined with raw fuel cooling the faces
>and housing. Have you considered that an extremely
>lean or rich mixture would give you the same effect?
How would it do that? As soon as it fires it generates heat. Not
trying to be flippant, I want to understand what you mean. I realize
that cooling is realized with an extremely lean mixture by causing less
power and therefore less heat to be generated. I also understand that
an extremely rich mixture results in unburned fuel that carries away
some of the heat. Is this how it works? Please correct me if I am
wrong.
OR
Are you suggesting that in my every other firing scenario a lean or rich
mixture working its way through a non-firing face would cool the rotor
face more than just air at the expense of fuel consumption?
How fine grained is the mixture system with fuel injected engines? Is
it possible to vary the mixture for each face of the rotor? Something
like "normal-lean-normal-lean-normal..."
-Randy
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