Ed,

I tried your approach method of cutting power and then just adding a smidgen
to carry all the way to the runway, flying at 12 inches altitude, and then
cutting the rest.

It works like a dream.  (My airspeed indicator still shows me coming over
the fence as approximately the same speed as a Citation, though.  Gotta fix
that.)

Dave W

 

From: [email protected] [mailto:[email protected]] On
Behalf Of Ed Burkhead
Sent: Thursday, May 21, 2009 7:28 PM
To: 'Nick King'; [email protected]
Subject: RE: [ercoupe-tech] Min. Airspeed

 






 

Nick,

A significantly inaccurate airspeed indicator should be fixed or replaced,
IMHO.  That's a key instrument.

Do a good test with the procedure I mentioned earlier this afternoon:
http://edburkhead.com/Ercoupe/airspeed_indicator_errors.htm 

When you go up next, get medium high and determine the minimum flying speed
according to the ASI that's in the plane.  Do your first final approach at
or a smidgeon above 1.4 times that number on a runway long enough that
there's no penalty for landing long.

I flare and level out just a foot to a yard or so above the runway and hold
it there and hold it there and . . . till it finally touches.  The sink in
ground effect is low enough that you should always touch down nicely.

As you get mastery of that, you can do testing at final approach speeds a
bit lower.

Be very, very aware that, if you are too slow, a Coupe will develop a really
strong sink rate.  If needed, apply power.  (As the Stromberg carburetor has
no accelerator pump, I always counted one-thousand-one, one-thousand-two,
one-thousand-three, one-thousand-four from idle to full power to be sure
there would never be an engine stumble.  (Other people only count to three.
YMMV))

 

Ed



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