how many anti-building aircraft it takes to one-shot a construction yard? #shorts

allied barracuda - 7 soviet kirov airship - 2 epsilon basilisk - 11* foehn quetzal - 12** * - inconsistent due to the inaccuracy of the basilisk’s weapon. it appears to be more consistent if the basilisks attack from the south of the conyard, making sure all shots hit ** - inconsistent due to the random nature of the quetzal’s weapon. there is no way to control where the bombs will drop from or hit the structure for maximum damage