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The B 21A-3, renamed A 21A-3 in 1950, had a Saab BT9 ballistic computer connected to a US K14 reclector sight, starting from 1949. It gave an impact indicator for attack rockets on the reflector sight (marked by a daimond shape) and it could drop bombs using continually computed release points by aiming at a target in a shallow angle, pressing a button on the stick and then go to level flight, having the bomb release automatically when the target point would be hit. Initially it had an optional BT3 sight instead (bombsikte m/42B) which featured CCRP but lacked a rocket impact indicator feature, as it had yet to recieve rocket armament prior to 1949.--Blockhaj (talk) 17:47, 7 February 2023 (UTC)Reply
