Angle of attack indicators

[FinnFlyer]

Oh, another thing. You'll need an angle drill to drill the hole in the tie-down square rod in the wing. (Square in the RV-3B factory built wings. Was a round tube in my old RV-3.) Even with a small drill motor I don't think there's room to drill the hole.

Actually I think I used a 3/32" or #40 drill, or perhaps 1/8" or #30 in my angle drill attachment and 1/8" OD metal tube of some kind in the hole to connect the 7/64" ID plastic tubing.

Alternatively it may be possible to remove the square rod to work on it on the bench -- if you can get to the nuts and bolts holding it to the wing.

Definitely take off the wing inspection cover near the tie-down hole and have a look at what you have to deal with. Measure the depth of the 3/8" hole so you know where to drill the small hole.

Finn

[Cyclone]

With the audible tones in the Dynon HDX, I monitor airspeed on final down to crossing the threshold and never put eyes on the panel after that. The increasing audible tone rate becomes second nature.

[Jim Frisbie]

I use my AFS AOA as primary on my 9A
(900 hrs)
It allows me to use a slower approach and landing speed with confidence & consistency
Unlike airspeed it’s instantaneous and adjusts to DA, weight and temperature
For me, airspeed is a secondary reference.
The AFS system is easy to install and calibrate
I consider it to be the best safety feature available for GA

[bob888]

Absolutely yes to AOA

[GalinHdz]

Originally Posted by Cyclone

With the audible tones in the Dynon HDX, I monitor airspeed on final down to crossing the threshold and never put eyes on the panel after that. The increasing audible tone rate becomes second nature.

I use the same technique for landing and yes the audible tone quickly becomes second nature.

My landings are now "acceptable" rather than "Holy Cow"!

[Feetwet]

Originally Posted by snopercod

I have an AFS "Sport" AoA. It's a stand-alone unit with a small .040" port on the top of the outboard wing and another on the underside. I mounted the LED bar graph display immediately to the left of my ASI so it's in my peripheral vision while landing. In a Lancair, it's a must-have safety device:

I have the same unit, with the multiple light readout mounted center of the RV4 tip up canopy rail, almost as good as a HUD. Lights come on from bottom up first. Did some extensive flight testing:
1. Best Glide, MaxEndurance and Best climb angle - all green and first of three yellow lights on (like Snopercod picture)
2. Best App No Flap - all green, first and Second of three yellow lights on
3. Best turn rate (hack it, rack it, track it) - all green, all yellow and occasionally first red.
Unit has audio, but I don't use it - too annoying

Always know approximately what mph lights indicate. (little plastic tubes fell off the sensor once) For instance for my RV4 at low fuel and FLAPS DOWN:
1.One green always On
2. two green = 71mph
3. two green and three yellow = 59mph
4. two green, three yellow, two red = stalled (49mph)
FLAPS UP:
1.One green always On
2. two green = 99mph
3. two green and three yellow = 74mph
4. two green, three yellow, two red = 62 mph
5. two green, three yellow, three red = 60 mph
Didn't stall until ~ 55 mph

ALL ABOVE ONLY CORRECT FOR MY AIRCRAFT!