Mailing List lml@lancaironline.net Message #21920
From: Marvin Kaye <marv@lancaironline.net>
Subject: Re: IV/P 360 deg overhead approach
Date: Sun, 14 Dec 2003 19:13:46 -0500
To: <lml>
Posted for "Charlie Kohler" <ckohler1@cfl.rr.com>:

They say a picture is worth a thousand words.  I've included the manual picture I use.

But, Just to add a little commentary;

Pick a airport---field---road--- or what ever. Start in that direction, then troubleshoot engine failure/try restart/make emergency calls. Note; not all control towers, and hardly any CTAF's Unicoms, monitor 121.5 mhz. And, judging from my questioning, not too many pilots are adhering to the post 9/11 request to use the backup com to monitor 121.5 mhz while flying VFR. So, I would make a Mayday call on the emergency frequency -- then transfer to control tower/CTAF and use the magic word again/three times. No time to be polite.   Step on/ override/ insist/ demand --what ever it takes- to get you priority, assistance, emergency equipment,  to a patch of pavement (hopefully) that will save your passengers/your skin. While doing all this-- Do not lose sight of the touchdown point. This is a major problem in off airport landings. Especially when a grass strip is all that's available, located and then lost during the 360 degree turn.  While attention is diverted. Make a constant radius 360 degree turn.  That means a shallow turn into the wind, steeper turn downwind. Increase glide speed into a wind, slow downwind.
If you know there's a stiff wind, add several hundred feet to the starting altitude.

(As an aside, I remember flying with Jim Cameron in his first new ES at Port Aransas, Texas with a STIFF wind.  I could not make it back to the runway from any altitude. In retrospect, I think we could have held runway heading 2700 ft. over the airport, and put the flaps out, and touchdown on the numbers.)

As Larry mentioned, if you have oil pressure, pulling the prop control back increases gliding range.

Regarding the shock cooling factor.  George Braly in his seminar at GAMI minimizes this factor.  While I agree any negative thrust event is detrimental to the life of your engine, the lack of practice of this maneuver during initial/recurrent training is even more detrimental to your longevity.

I train that a 7:1 glide ratio should be used in planning.  But in reality, Don G. has attained 9 1/2:1  .

Land into the wind if at all possible.  Always take a wind into the account.

Last but not least-- DO THE CHECKLIST---- MAKE SURE THE GEAR IS DOWN.

Charlie K.
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