By comparison , direct aerial attacks on Axis shipping had sunk or damaged 105 vessels at a cost of 373 aircraft lost .
In the next 20 months , mines delivered by aircraft sank or damaged 164 Axis ships with the loss of 94 aircraft .
Direct aerial attacks on Axis shipping had sunk or damaged 105 vessels at a cost of 373 aircraft lost .
In the next 20 months , mines delivered by aircraft sank or damaged 164 Axis ships with the loss of 94 aircraft .