flyrotary@lancaironline.net Mailing List Archive

Hi Bill,

1. Your temps sound better than mine...:0) (for now)

2. What were the temps before you made the cowl flap larger?

3. What is the angle of your flap and what are its dimensions? What is the area of the opening behind the flap? One can open the angle of the flap to increase the opening, which also increases drag and calls for an adjustable flap. Or, one can move the flap forward on the bottom of the cowl and keep the angle and flap dimensions the same. This will make the exit area larger and I don't know what it will do to drag..:-)

4. Less than WOT (25") calls for more runway, I'd think.

Share a little more of the particulars, please.

Tommy James<><

I made a new one that is about twice the size of the original. Now I can climb out at 25 inches MAP with OAT over 100F, and the oil stays under 200, and the coolant stays about 205. Does that sound reasonable for temps?

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