Ok
Had a play about on fmb and choose 7 air bases at random... created spawn points etc etc...
On testing... DONT USE 2 to 6 - clearly designed for fighters lol - blow up everytime trying to spawn!
However blue 1 & 7 are ok
Did the same load... 8 bombs, full tank of gas... and took off...
If you look at the personal load outs, you will notice that if you have full fuel and 8 bombs, the aircraft is technically (from what the game says) over weight... so maybe have less fuel in the aircraft will help!
Attached is a movie track i made plus the map (all bases in france - the two bases you want are
Boisjean ecuries and
calais marck)
Cheers