You've never used salvo and delay together?
Duuuuude... Strat bombing is much better with delays. We used them to good effect in the Red Storm scenario, delaying so each "stick" of bombs spread out across a strat from end to end for best damage.
New industrial center is a bit large. Each city block is 628.5 feet square. @ 270 mph (20k + alt) one can only get 7 blocks. The delay required for 12 500 pounders is .93. 16 250 lber's can stretch out to 10 blocks with a delay of .99.
A nice trick is to bomb along a "section line." The street that seperates the blocks. With 500 lbers and their blast radious one can get as many as 14 blocks. My best has been 12.
I keep hearing 250 lbs per block. However, a City shows as needing .8438 of 1000 pounds. Which is about 844 pounds.
Thus my original question in this thread, what does it take to destroy a city block.