Dambusters Raid

[Jim Oxley]

Am curious what the USAAF reaction was when they heard of the Dambusters Raid.

At that time of the war the USAAF believed that they were achieving greater, more effective results in their targeted daylight precision strategic bombing approach. Rather than the indiscriminate night area bombing approach of the RAF.

Yet here was a single RAF Squadron that had carried out a devasting night precision raid that had, in one fell swoop, achieved arguably as much destructive damage as the 8th had managed in any single raid up to that time.

Books written about the raid cover the training of 617 Squadron, it's people, the raid and the destruction wrought. Have never read of the American air force leaders reaction. Anyone know what the USAAF hierarchy reaction was?

[Jim Oxley]

I'm guessing from the lack of response that no one has come across a recorded USAAF reaction to the raid.

[Chris Goss]

I would have thought that any response would be personal not official?

[RSwank]

I thought it would be interesting to see how Google’s A.I would answer.

AI Overview

During the middle of 1943, the United States Army Air Forces (USAAF) viewed the Royal Air Force's (RAF) Dambusters Raid (Operation Chastise) with a mixture of professional admiration for the aircrews' bravery and deep doctrinal skepticism regarding the raid's broader execution and military value. [1, 2]
The historical context of the USAAF's reaction highlights a profound strategic divide between the two Allied forces:

1. The Clash of Bombing Doctrines
At the time of the May 1943 raid, the USAAF and the RAF were locked in an ongoing debate over the best way to conduct the strategic air campaign over Europe: [1]
• The USAAF Stance: Led by commanders like General Henry "Hap" Arnold and Lieut. General Ira C. Eaker, the USAAF was deeply committed to daylight precision strategic bombing. They believed that heavily armed bomber formations (like the B-17 Flying Fortress) could target specific, vital nodes of German industry during the day. [1, 2]
• The RAF Stance: RAF Bomber Command, under Air Chief Marshal Arthur "Bomber" Harris, prioritized nighttime area bombing aimed at destroying entire industrial cities to break German morale. [1]
The Dambusters Raid presented a paradox to USAAF leadership: it was carried out at night, but it achieved an unprecedented level of extreme precision. [1, 2]

2. A "Perfectly Timed Riposte"
In the months leading up to the raid, American leaders and the U.S. press had increasingly criticized the RAF’s night bombing campaign as imprecise and inefficient. Historian James Holland notes that Operation Chastise served as a "perfectly timed riposte" to American skeptics. [1]
• It proved to the USAAF that the RAF was capable of surgically striking and destroying heavily defended, specific industrial targets—even under the cover of darkness. [1, 2]



• Politically, the spectacular headline success gave British Prime Minister Winston Churchill massive leverage during concurrent Allied strategy conferences in Washington, reinforcing the viability of British air power to American leadership. [1]
3. Intelligence and Economic Skepticism
While the American public and media lauded the sheer audacity of the operation, the USAAF’s internal intelligence divisions quickly assessed the raid's long-term economic impact with cold pragmatism. [1]
• Anglo-American intelligence and economic experts eventually concluded that while the raid was a monumental psychological victory, the actual long-term disruption to the Ruhr Valley's war industries was heavily overestimated. [1]
• USAAF leaders noted that the Germans executed incredibly rapid repairs, and they observed that the massive expenditure of elite crews and resources (losing 8 out of 19 Lancaster bombers and 53 crew members) yielded limited, short-term economic paralysis. [1, 2]
Summary of the US Reaction
Ultimately, the USAAF viewed the Dambusters Raid as an extraordinary "conjuring trick" of airmanship and engineering. However, it did not alter American doctrinal belief. The USAAF did not abandon its daylight precision campaign, choosing instead to focus its own precision efforts on targets like the German aircraft industry and ball-bearing plants later that summer (such as the costly Schweinfurt–Regensburg mission). [1]
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Looks like it did not copy the footnote links. Many were to Wikipedia articles, but not all. Here is one that wasn't.

https://www.aerosociety.com/news/dambusters-debated/

[Jim Oxley]

Interesting link, thanks for posting it RSwank

[Laurent Rizzotti]

While 617 Sqn attack on the Dams was a success, it is also interesting to see that it was not repeated, while there were other dams targets available.

And 617 stopped low level bombings after a failed and costly attack on a canal IIRC.

Another question I have not yet looked at is the impact of the Dam destruction and the following floods on German war production. I see in the above post that Americans say it was heavily overestimated by the RAF.

As for precision bombing, from a French point of view, in 1944 raids on factories by 5 Bomb Group RAF at night were more damaging and less costly in civilian lives than daylight 8th Air Force raids. The so called "precision bombing" by American bombers was often not so precise.

But from what I read, I think this raid gave RAF some credit for some months, and then the destruction of Hamburg in July 1943 should have closed the debate, while in the next months the USAAF strategy of "decisive deep penetration raids on strategic targets" (Ploesti, Schweinfurt) proved very costly and failed to achieve decisive results.

A last comment: while 617 Sqn lost almost half of its crew in one raid, most of the objectives were hit and German casualties were far above RAF ones. During the battle of Berlin, many RAF squadrons lost more than half of their crews in repeated raids, for a worst result. But as this stage, from an American point of view, such losses were prohibitive, they still believe in B-17 defensive formations and did not imagine yet that some of their units will suffer the same fate later (in Schweinfurt/Regensburg raids, or under attacks by Sturmgruppen in 1944).

An interesting point is that the same day as the Dambuster raid (17 May 1943) a USAAF B-26 raid on Ijmuiden ended in disaster, with all ten bombers being shot down. After this raid USAAF abandonned low altitude raids with B-26 and the next B-26 operation was two months later, on 16 July. Losses were similar to the 617 Sqn and results were nil (the few B-26 that bombed did it at a wrong place), so I guess USAAF was not pleased to recognize the RAF success at the same time.