i could not find anything regarding fat boy and little boy , only laurel and hardey , i think if you look at the total idea itll cost a player the b29 perk value also the bomb perk value and you have to climb to 30k , which will take 90 mins , avoid enemy aircraft , i would say only one or 2 could be detonated per day , as not many players want to sit for a hour and half , to reach realise ceiling , if you are below ceiling bomb does not detonate , and the most any player could take out is 1 base , and within the climb time the aircraft will be vunarable , and i forgot the 20 mm cannon goes on the back