Just noticed you're in Sweden, sorry for that over sight. You might well obtain that permission. I don't see it on this side of the water without first meeting significant equipment requirements. The all up weight and prop size for a 550 will be contributing/limiting factors to amp loading. You should be fine for "full power" climbs with the '60's.
No problem, Old Man. I'll go with the XT60's.
Luftfartsverket (Swedish aviation administrative authority) basically says that if you want to play in the same airspace as the big boys, you have to play by the book. File a filghtplan, contact the ATC, etc. I'm not familiar with how these rules are implemented in reallity. Maybe I'll need a transponder. I hope I don't have to get a VHF license and communicate with the ATC over airband. Fortunatly, there
are working routines to operate UAVs in Swedish airspace since Swedish Air Force decided to hand over the operation of target drones to a private contractor somewhen back in the 1990s. (Sorry for going off-topic.)
