<i>It would probably have been better to omit those heavy guns and turrets and to leave those gunners on the ground to save weight, lives, and resources</i><p>That is exactly what Freeman Dyson said of the Lancaster bomber.<p>Tho&#x27; no sooner had the belly turret been removed than the Luftwaffe invented upward-firing guns, they would slip into position directly under, matching speed and heading, then just let rip.