Qualla: Operation Chastise

Operation Chastise: Introduction

Sun, 17 May 2026 00:00:00 GMT

Photo credit Hensser (F/O), Royal Air Force official photographer, Public domain. Around 22:00 on the night of 16 May 1943, the first Avro Lancasters of 617 Squadron lifted off from RAF Scampton near Lincoln, each carrying a cylindrical mine that had been forced to spin at 500 rpm under its belly. By dawn the next morning, the Mohne and Eder dams in the German Ruhr region would lie breached, a wall of water would have rolled through valleys downstream, and about 1,650 people would be dead. Of those, fifty-three were RAF aircrew. Roughly six hundred were German civilians. About one thousand were enslaved laborers, mostly Soviet women, locked into a camp at Neheim where they could not run. This is the story of Operation Chastise, the Dambusters Raid, and it has to be told for everyone who died in it.

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Image: Hensser (F/O), Royal Air Force official photographer | Public domain

Operation Chastise: Barnes Wallis and the Mine That Skipped

Sun, 17 May 2026 00:00:00 GMT

Photo credit Anynobody, CC BY-SA 4.0. The bomb was the work of Barnes Wallis, an assistant chief designer at Vickers who had already shaped the Wellesley and Wellington bombers. The Mohne and Sorpe dams were ringed by torpedo nets that would stop any underwater weapon, and Wallis knew an explosion against the dam wal...

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Image: Anynobody | CC BY-SA 4.0

Operation Chastise: The Crews

Sun, 17 May 2026 00:00:00 GMT

Photo credit A. Carty (talk), CC BY-SA 3.0. The new squadron was thrown together so fast it outran the RAF's own naming rules and went by Squadron X for weeks before being called 617 Squadron. Wing Commander Guy Gibson was 24 years old and had already flown more than 170 bombing and night-fighter sorties. Around him he gat...

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Image: A. Carty (talk) | CC BY-SA 3.0

Operation Chastise: The Run In

Sun, 17 May 2026 00:00:00 GMT

Photo credit Unknown author, CC BY-SA 3.0 de. Nineteen aircraft took off in three waves on the evening of 16 May. They flew at about 100 feet to slip under German radar. Flight Sergeant George Chalmers, riding as radio operator in O for Orange, looked through the astrodome and saw treetops above his pilot, who was threading ...

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Image: Unknown author | CC BY-SA 3.0 de

Operation Chastise: The Wall Gives Way

Sun, 17 May 2026 00:00:00 GMT

Photo credit Schalber, CC BY-SA 3.0 de. At the Mohne, Gibson made the first run himself. The bomb skipped clean, hit the wall, and rolled down to detonate at depth, but the wall held. Hopgood went in next and was shot down on the run, his bomb overshooting and detonating on a power station. Martin's bomb missed. Then Y...

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Image: Schalber | CC BY-SA 3.0 de

Operation Chastise: The Valley at Night

Sun, 17 May 2026 00:00:00 GMT

Photo credit ich selbst, CC BY-SA 3.0. Downstream of the Mohne was Neheim, a working town in the Ruhr industrial region. Just south of Neheim, at the labor camp known sometimes as Bremketal or Lager Neheim, the SS held between one thousand and 1,200 enslaved workers, the great majority of them young Soviet women, most...

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Image: ich selbst | CC BY-SA 3.0

Operation Chastise: After the Water

Sun, 17 May 2026 00:00:00 GMT

Photo credit TriumphTR7RV, CC BY-SA 4.0. Two hydroelectric power stations were destroyed, several more damaged. Factories and mines along the Ruhr were hit. The Germans, drawing on enslaved labor on a much larger scale, repaired the dams within months. Production did not return to normal until September. Bomber Harris, ...

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Image: TriumphTR7RV | CC BY-SA 4.0