Question ... opening the Airbrake on the ground is it to help cooling the APU/packs OR the Aircraft itself???
I never heard about this but our airline hardly operates in 40+ degree C with 80+ humidity conditions.
If you see an open Airbrake on a RJ in Europe (lets say EU-members and imm. surroundings) you can, according to me, be 100 percent sure it's open due to the lack op hydr. press.
I have been told that Lufthansa planes never have this because one of the bearings in the system has to be changed to solve this problem. But most companies will not spend money on this purely aesthetic issue!
Happy landings!
We climb because the earth is round but nobody performs a highspeed approach like a RJ-driver!!!
