The Stabilized Automatic Bomb Sight (SABS) was a tachometric bombsight introduced into operational service by the Royal Air Force (RAF) in 1943 during World War II. Hand-made throughout its lifetime, the SABS was produced in very small numbers and used only in specialist roles. The majority of Bomber Command and Coastal Command retained the Mark XIV bomb sight, which was easier to use and available in large numbers.
SABS was used operationally for the first time by No. 617 "Dambusters" Squadron on the night of 11/12 November 1943 for their attack on railway viaduct at Anthéor. No hits on the viaduct were recorded during this raid by any of the 10 Avro Lancasters dropping 12,000 lb (5,400 kg) Blockbuster bombs.[1]
617 Squadron achieved an accuracy of 94 yd (86 m) at the V Weapon launch site at Abbeville on 16/17 December 1943.
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