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Terrence,
You first. ;)
Jeff
Sent from my iPad
And if the scud goes down to 200 feet AGL?
-----Original Message-----
From: Lancair Mailing List
[mailto:lml@lancaironline.net] On Behalf Of Terrence
O'Neill
Sent: Tuesday, December 20, 2011
9:59 AM
To: lml@lancaironline.net
Subject: [LML] Re: MGL back up
instrumentr
John,
Good question. I was thinking VFR.
Now you're making me think of IFR.
Well, I recall Jimmy Doolittle's recanting flying his
Peashooter over the overcast to some town in the Andes, which was socked in.
So he just put 'er into a spin, and recovered when he broke out under the
clouds. : ) Simple enough?
So we need part of partial panel: needle, ball, and
(no vacuum required) an AOA vane.
Step on the ball, stop the turn (needle), and hold the
trim-altitude... or AOA. The skid-ball is easy. The problem is the
needle... so I'm wondering if the R/C guys have a pizeo thingey that shows
which way you're turning?
On Dec 20, 2011, at 7:06 AM, John Barrett wrote:
A most unorthodox choice of substitute for altimeter
and a/s indicators. These instruments are primarily there as worst case
back up instruments for saving my ass when everything except the engine fails
while in IMC. No more GPS, PFDS etc. Maybe the G496 will still work
off it's battery. If so that may solve the problem but if not?
A purely mechanical AOA might help me to keep from
stalling but how could I rely on it to get me out of IMC safely?
Lurking, might one quietly suggest that the ultimate
backup would be a simple, mechanical AOA vane on the wing?
That's all you need to keep from stalling, as you can
see the ground.
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