Airbrakes on Turboprops
A wee technical question.
Couple of hours ago twin turbo prop (Dash8/ATR?)passed over circa FL80- I am just west of Northampton so it was probably Brum inbound. Appeared to have petale type airbrake in tail like F28/146 deployed. Never noticed anything similar before. Which type has this and what are the speed/ altitude limitations on use?
TIA
Airbanda