Unlike the V-2, the V-1 was a cost-effective weapon for the Germans as it forced the Allies to spend heavily on defensive measures and divert bombers from other targets. More than 25% of Combined Bomber Offensive's bombs in July and August 1944 were used against V-weapon sites, often ineffectively.[12] In early December 1944, American General Clayton Bissell wrote a paper which argued strongly in favour of the V-1 compared to conventional bombers.[34]
Blitz (12 months) vs V-1 flying bombs (2¾ months)
Blitz V-1
1. Cost to Germany
Sorties 90,000 8,025
Weight of bombs tons 61,149 14,600
Fuel consumed tons 71,700 4,681
Aircraft lost 3,075 0
Personnel lost 7,690 0
2. Results
Structures damaged/destroyed 1,150,000 1,127,000
Casualties 92,566 22,892
Rate casualties/bombs tons 1.6 1.6
3. Allied air effort
Sorties 86,800 44,770
Aircraft lost 1,260 351
Personnel lost 2,233 805
The statistic of this report, however, have been the subject of some dispute. The V-1 missiles were often prone to exploding prematurely, occasionally resulting in the loss of the aircraft from which they were dropped. The Luftwaffe lost 77 aircraft as a result of the launch of these sorties.[35]