On 12/14/2011 05:53 PM, Thomas Mann wrote:

I'm posting this response on behalf of John Slade who is using a ISP that is BLACKLISTED (one of many)

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This is the message:

Tom. Could you ost this to fly rotary for me?
I know this is a pain, but this one's important....

Chris,
I have idle set at around 800. Keep in mind that the higher the idle, the harder these canards are to land. Don't listen to the RV guys - they have flaps. Ideally you want the lowest idle you can get, that's not going to stall the engine on final. It's worth a bit of effort to try and tune for a lower idle, but this is the idle with the engine being driven by the prop, which is a different area on the tuning chart to the idle when stationary. You can only tune this area while airborne. I found this out when I first throttled back all the way on a high base, and the engine stumbled. I needed new underwear that day. So - lesson learned - test the throttle all the way back at altitude over the field before doing it on short final.

Be ready to use both rudders to loose altitude if you set the idle high. With the IVO in full fine pitch the thrust won't be too bad, but with a fixed pitch prop idling at 1600 you'd be landing in the next county if you're fast or high on final.

Regards,
John

Actually, *do* listen to the RV guys, if they have fixed pitch props. They will tell you the same thing that John says. :-)

I have no direct experience with EZ types, but any slick, relatively high efficiency tractor style a/c with f/p prop will go into neverland mode if idle prop rpm (on the ground) is above around 750-800. Anything above that, & it will effectively be making thrust instead of drag on final.

Charlie

(lots'o time in RV's)