Mailing List flyrotary@lancaironline.net Message #12808
From: Kelly Troyer <keltro@att.net>
Subject: [FlyRotary] Re: EWP Info- Lynn?
Date: Thu, 11 Nov 2004 22:05:24 +0000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
The Master has spoken guys........I thank I will stick to what I understand.......I
worked for Westerm Electric/AT&T/Lucent also !!
 
Kelly Troyer
 

> The rule is that the pump must be mechanically driven. So, no electrics in
> road racing. I think the electric would save about 3 HP at cruise. So long as
> not much HP is being produced, the electric might work out OK. The drag racers
> use them to get uniform block temps. You cannot actually cool to any great
> extent a prostock big block at the 800 or 900HP level. How much heat can you
> transfer in 9 seconds? I don't think they even carry the radiator in the car,
> but
> it has been ages since I saw one apart. You can put enough water through it to
> keep from breaking a head bolt, or permanently deforming an important part.
> NASCAR has the prize for continuos cooling in the 745 HP range. No stock pumps
> and no electrics there.
> Huge aluminum radiators.
>
> So long as the amount of heat to be transferred is small, the electric would
> work OK in my mind. Even a rotary on the street would be fine. But at less
> than 29% efficient, 70+% of the fuel leaves through the radiator, oil cooler and
> exhaust pipe.
> Not a problem for sub 100 HP street work. But the airplane needs close to
> 100% duty cycle. Maximum continuos HP. You can save a few HP by slowing the pump
> a bit, so you can get the HP loss under maybe 2?
>
> Just another electrical device, powered by compressed smoke, to leak down and
> fail.
>
> When I was an inspector at Western Electric, the troops would now and then
> manufacture a batch of DEDs. Better known as Darkness Emitting Diodes. Very
> efficient these things were. Required no power at all to function. Unfortunately
> their function was to lay still and absorb light.
>
> Lynn E. Hanover
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
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