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Mooney AOA Indicator  

92 members have voted

  1. 1. Do you have an angle of attack indicator in Mooney?

    • Yes, it came with my plane
      2
    • Yes, I had one installed
      5
    • No, but it's next on my list
      9
    • No, but it's on my extended wish list
      41
    • No, my airspeed indicator is good enough
      35


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Posted

Piloto, on 27 May 2013 - 10:15 AM, said:snapback.png

Although an AOA is a nice thing to have it will not help you in assessing how close you are to a stall condition. You could be doing 140kts IAS or 90kts IAS but the AOA will indicate the same for either one. With the air speed indicator you know you have that extra speed to overcome a stall condition before you turn to final. You can fly without an AOA but not without an ASI.

 

José  

Jose, with due respect (and I say that with all sincerity) your understanding of AoA is exactly backwards.  Unfortunatelywhat you DON'T know about AoA is stunning, and that's not a put-down; rather it's that your education in very basic aerodynamics regarding angle of attack is sorely deficient.  Please, please, for the sake of yourself and your loved ones, do spend some time to truly study the relationship between airspeed, wing loading and AoA. 

 

With respect to AoA devices, just two weeks ago the FAA sent out a general aviation safety “fact sheet” identifying several technologies the agency says can help significantly curb the fatal accident rate.  The top two devices named are seat-belt airbags and angle-of-attack indicators.

 

Too, a liberal education on the subject is available here;   http://www.ballyshannon.com/aoa.html

 

Cheers!

 

Dunno about the seat-belt airbag but be aware that AoA systems DO NOT require an STC, not even field approval for the install; only a logbook entry by any A&P.

 

Took 'em a while but FAA finally figured it out and got that one rightPlease read the FAA Letter of Clarification

 

Cheers!

 

From FAA Letter

 

1. The system is non-required and used in an advisory or supplementary manner. The

    system will not be used in lieu of the airspeed indicator or aircraft stall warning system.

    No operational credit may be taken for the nstallation, such as reduced stall speeds,

    reduced approach speed, reduced takeoff or landing distances, etc.

2. Accuracy of indication of stall must coincide with the stall horn, or be conservative

    (indicate stall at a higher airspeed) as compared to existing stall warning devices.

 

Jim according to the FAA letter I have to fly by the airspeed indicator and stall warning and not by this AOA gadget. According to your first statement it would appear that Mr. Earl Lawrence FAA and myself went to the same aerodynamics class. Oh well.

 

José 

Posted

When you guys get to a traffic light, and you stop because it is red...

Do you then watch the other direction's light sequence as it goes from yellow to red?

Do you watch the walk signals that go from white to red, with a time to go timer?

All of these devices lead to more knowledgable decision making...

Of course, the NJ guys have it made...

(1) if you tend to wait for the green light in a standard fashion ( not watching the other sequences)

(2) and you get distracted, cause your aging (at least past 16 years old)

(3) there is an engineered solution supplied by the person behind you. They will gladly push the button on their steering wheel to activate the "warning" horn.

Bottom line....

If you like to watch the other signals, you'll have an appreciation for the AOA system...

If you blissfully sat through a green light this week, you are probably flying a Cessna already...

The ancient school Cessna may not have a working stall warning device either, I'm not putting my lips on it to find out.

I've had an interesting week, so far...

Best regards,

-a-

Posted

When you guys get to a traffic light, and you stop because it is red...

Do you then watch the other direction's light sequence as it goes from yellow to red?

Do you watch the walk signals that go from white to red, with a time to go timer?

All of these devices lead to more knowledgable decision making...

Of course, the NJ guys have it made...

(1) if you tend to wait for the green light in a standard fashion ( not watching the other sequences)

(2) and you get distracted, cause your aging (at least past 16 years old)

(3) there is an engineered solution supplied by the person behind you. They will gladly push the button on their steering wheel to activate the "warning" horn.

Bottom line....

If you like to watch the other signals, you'll have an appreciation for the AOA system...

If you blissfully sat through a green light this week, you are probably flying a Cessna already...

The ancient school Cessna may not have a working stall warning device either, I'm not putting my lips on it to find out.

I've had an interesting week, so far...

Best regards,

-a-

 

Don't bother me Anthony! I am too busy texting while I am waiting for the light to change. Just beep when it turns green.

Posted

Good analogy Carusoam. But all the traffic lights here in Florida have a hood on the lights so I cannot see what is going on on the other lights. But in any case the one that counts is the one you are facing.

 

José 

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