Now J-21 with the structure advanced, such as ejection seat and propeller propelled as at that time in 1943 and J-21R in 1947 was over jet as can be over jet easily from place aircraft that after the war. J-29R as a fighter that became a hit for that attack missions have been developed but the new Saab 29. Remodeling has been like a bomb or rocket can be mounted on the underside fuselage also the name next to A-29R. Eventually all aircraft has been working as a military attack aircraft Sweden next A29.

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Saab A-21R - Swedish Air Force - "Yellow C", 1st Division, F7 Wing, Sätenäs, 1951-1952.
Saab A-21RB - Swedish Air Force - "Yellow G", F17 Wing, Ronneby, 1954.
Saab A-21R - Swedish Air Force - "Blue O", 3rd Division, F7 Wing, Sätenäs, 1951-1953.
Saab A-21R - Swedish Air Force - "Blue P", 3rd Division, F7 Wing, Sätenäs, 1951-1952.

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