Originally posted by Luftwaffle:
It might be useful to show a student that the angle of attack for certain performance "speeds" was constant under conditions when the actual speed varied. But a trainer POH doesn't specify angles of attack corresponding to Va or best glide, so the student still has to learn to use the speeds.
I've seen two types of GA AoA indicators advertised, one with an external vane like on a 737 and one that measured the differential pressure between pinholes.
Here's one of the vane ones, complete with the manufacturer's arguments for its usefulness, and advantages over other designs: http://www.riteangle.com/
All good stuff, but anything more in the cockpit to confuse the poor student and he/she will be even more distracted from looking out---- I think one of the most important activities when flying in uncontrolled airspace. There's my twopence worth (I'm a very old lapsed instructor who won't be paying to revalidate-good luck all)