On Thursday, May 17, 2018 at 1:43:09 PM UTC+12, Richard McLean wrote:
On Wednesday, 16 May 2018 22:21:48 UTC+8, Matt Herron Jr. wrote:
from my perspective, reducing airbrakes at 100' changes your glide slope and therefor aim point half way through final. So do you give up your initial aim point at 100', or do you have two aim points? Either option seems like a bad idea for students.

Airbrake deployment should be a driven variable to maintain a correct approach, not the other way around.

Additionally, a shallower approach for the last 100' means you are way more susceptible to wind shear, as you don't have much "extra" glide to recover by closing the airbrakes.

To me, it sounds like the tail strike problem is in the flair, not the use of airbrakes.

Hi Matt, yes you give up the original aim point. This isn't ideal but better than damaging the aircraft? The debrief can cover off the reasons. Lots of bad landings are the result of not accepting that you stuffed up your original aiming point & concentrating on the actual landing.

I'd think if you were so high turning final that you can't get back on to a standard half brake approach by, say, 100m before crossing the fence then you've well and truly stuffed up the circuit. Especially in something with airbrakes as powerful as a DG1000 or Grob. You definitely should never be planning to carry full brake all the way down the approach ... that leave nothing in reserve for the unexpected.