How many tonnes of bombs did the Allies drop on D-Day?

[Dan History]

Originally Posted by RSwank

link

Thank you, RSwank. An obvious source which I did not check!

This information allowed me to find the following, reasonably definitive, text, in the Report by the Supreme Commander to the Combined Chiefs of Staff on the Operations in Europe of the Allied Expeditionary Force 6 June 1944 to 8 May 1945. It is available online at https://history.army.mil/html/books/...-58/index.html:

"During the 24 hours of 6 June, the Strategic Air Forces flew 5,309 sorties to drop 10,395 tons of bombs, while aircraft of the tactical forces flew a further 5,276 sorties"

These are US, or short, tons, so the equivalent weight in metric tonnes is 9,430.

Originally Posted by Laurent Rizzotti

From memory, many of the missions flown in the night of June 5-6 were in the hours before dawn, while a good part of those flown in the night of 6-7 were in the evening of the 6th. As the bombing effort on the second night was bigger than on the first (1065 Bomber Command aircraft vs 1012), this would add some thousand more tons of bombs. According to the BC War diaries by Middlebrook and Everitt, 3488 tons of bombs were dropped that night.

Laurent, the text that I found adds the following detail to that already mentioned above:

"Shortly after midnight the bombing commenced, and by dawn 1,136 aircraft of RAF Bomber Command had dropped 5,853 tons of bombs on 10 selected coastal batteries lining the Bay of the Seine between Cherbourg and Le Havre. As the day broke, the bombers of the U. S. Eighth Air Force took up the attacks, 1,083 aircraft dropping 1,763 tons on the shore defenses during the half-hour preceding the touchdown."

Thus, the piece of the puzzle that is missing is the tonnage dropped by tactical aircraft. Given their much lower bomb-carrying capacity and the fact that many fighters did not carry any bombs at all, I would estimate that they dropped no more than about 3,000 metric tonnes on D-Day. It would be good to have precise figures, of course.

Kind regards,

Dan

[Laurent Rizzotti]

Originally Posted by Dan History

"During the 24 hours of 6 June, the Strategic Air Forces flew 5,309 sorties to drop 10,395 tons of bombs, while aircraft of the tactical forces flew a further 5,276 sorties"

These are US, or short, tons, so the equivalent weight in metric tonnes is 9,430.

I'm quite sure the above is for both British and US Strategic Air Forces (Bomber Command and 8th Air Force)

Regarding the number of sorties:
1,136 by Bomber Command
1,880 by 8th AF fighters (including fighter-bomber sorties)
2,591 by 8th AF bombers, only 1729 bombing a target

Total: from 5607 to 4845 sorties, I think a number of bombers that did not bomb were counted as sorties while other were not. Probably the ones that flew over France without finding a target were counted.

Regarding the bombs:
5,853 tons by Bomber Command
3,596 tons by 8th AF bombers (according to http://paul.rutgers.edu/~mcgrew/wwii...ml/Jun.44.html)
Total: 9449, close to your number. It is possible that the 3,596 tons just above are short tons, roughly 3300 metric tons. This will leave about 250 tons not listed, but the 8th AF fighters probably dropped them.

[Dan History]

Originally Posted by Laurent Rizzotti

I'm quite sure the above is for both British and US Strategic Air Forces (Bomber Command and 8th Air Force)
.... This will leave about 250 tons not listed, but the 8th AF fighters probably dropped them.

Laurent, thank you for these comments. The source explicitly refers to 'air forces', so the tonnage is definitely a joint British and American figure. I am confident that neither the Americans nor the British used metric tonnes, and probably standardised on short tons. This assumption is supported by a quick check of the RAF's official history, where short tons are used - https://www.ibiblio.org/hyperwar/UN/...AF-III-16.html .

I agree that it appears that the tonnage not accounted for by Bomber Command or American heavy bombers was dropped by the fighter-bombers of the Eighth Air Force. This does leave the tactical aircraft of the Ninth and Second Tactical Air Forces entirely unaccounted for, which is a matter of frustration.

Kind regards,

Dan