Subject: Advanced AOA Pro
From: Rotary Engine
Date: 1/21/2011, 12:02 PM
To: AAA Put this in the To box



Group,

If anyone is interested in an Advanced AOA at a nice discount, please
reply directly to Cody.

Mark


Mark,

If you know anyone who uses Advanced and might want this, feel free
to pass it along.  I bought it a while back and am just going to pass it
along as I obviously jumped the gun on it.

http://www.advanced-flight-systems.com/Products/AOA/aoa.html

Will sell for $1250 shipped

Cody Austin <cody.r.austin@gmail.com>


Any one can build one of these for less than $120. If you forgo the
electronics, about $45.
http://www.ch601.org/resources/aoa/aoa.htm
C. Smith

I think I could do a solid state version for way less using two
$10 Free Scale pressure sensors, a $1 op amp and a few LED's:)

Paul Lamar

Yeah, I just made a SWAG at it. A lot depends on the sensor you pick. the
choices get pretty narrow below 1PSID. Still gotta have the probe machined or
molded. I have one of each. Then there's a heated option too if ya wanna get
fancy. Come to think of it, if you use just one differential sensor, that's
another savings(I know, it's s. I'm pretty sure that one can get monolithic LED
bar meters with the analog front end in the package too these days.
C. Smith

You mean like the  LM 3914 with the LED's built in ?
Got any part numbers?

One could  get a cheap digital voltmeter and mount it on the panel
to read out the voltage to 3 decimal places.

http://business.shop.ebay.com/Amp-Voltmeters-/25411/i.html

That and a diff pressure sensor is all you need.
Angle of attack 1.535 volts :)

Paul Lamar


-- 
The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Youtube key word PaulLamar2
Copyright 1998-2010 All world wide rights reserved.