3 ms·
> Stall speed is an approximation. It's baffling that GA aircraft don't have one of the most safety-critical measurements: AOA. All aircraft equipped with a si
by ExoticPearTree 3y ago
> Stall speed is an approximation. It's baffling that GA aircraft don't have one of the most safety-critical measurements: AOA.
All aircraft equipped with a six pack, you have an artificial horizon indicator which can tell you what is your angle of attack. And Cessna's have them in all planes, even 50-60 years old ones.
- jnsaff2 3y agoThe angle of attack is the angle between the chord line of the wing and the oncoming air (or relative wind). This is distinct from what the artificial horizon measures. The artificial horizon is concerned with the aircraft's orientation relative to the gravitational pull of the Earth, indicating whether the nose of the aircraft is above or below the horizon and how much the wings are tilted relative to the horizon. Artificial horizon is not a reliable indicator of angle of attack.
- ExoticPearTree 2y ago> Artificial horizon is not a reliable indicator of angle of attack. Keyword being "reliable", but it is pretty close to it. That's how you get to fly safely through clouds using only an artificial horizon indicator.