Transport category aircraft, it is certificated for full rudder sideslips at speeds up to Vmo/Mmo. Either pilot rudder force limited or maximum rudder angle that the flight control system will reach.
I doubt that this aircraft would be thrust limited at the proposed altitude with the small sideslip angle required. If so, get a block of altitude and lose a bit of height during the observation - wouldn't be much.
Will need to select airspace which gives some operational flexibility
So, the proposal is within the certification envelope of the aircraft, the flight control system allows for flight with sideslip, may require flying without autopilot, should have the performance but may need to drift down a bit.
Use airspace that allows operational flexibility.
Most important, talk to the Ops manager/ chief pilot about the project.
Last edited by zzuf; 24th May 2021 at 07:18.