The Saab 21R was a Swedish fighter / attack aircraft developed and produced by Svenska Aeroplan AB (SAAB). It was a jet -powered development of the piston-engined SAAB 21 and was the first jet aircraft to be produced by Saab.

The SAAB 21 is a Swedish single-seat low-wing monoplane fighter and attack aircraft designed and manufactured by SAAB. Its twin boom fuselage with a pusher engine gave the aircraft an unusual appearance.

该机的型号萨伯 21R 中的 R 是瑞典语 Rea（喷气）一词打头字母，这就是它叫萨伯 21R 的原因。 在二战结束前，萨伯公司（Svenska Aeroplan AB，缩写 SAAB）就已经意识到，喷气发动机将是未来战斗机的主要动力，是研制现代战斗机的基础。 但当时无论轴心国还是同盟国都将喷气发动机技术视为“最高机密”，不向外界透漏一丝一毫，因此萨伯对喷气发动机技术几乎是一无所知。 二战结束后的 1945 年秋，经过不懈的努力，瑞典终于得到英国德·哈维兰的“妖精”（Goblin）离心 …

战斗机型号均以J开头，因此Saab-21的军队型号为J21，其原型机共3架，三种生产型（J21A-1型、J21A-2型、A21A-3型）共生产了 298架，服役时间从1946年到1954年。

The Saab J 21 is a peculiar airplane, not only because of its advanced features. This fighter in particular is one of the only two airplanes that were initially powered with a piston-propelled engine, then later modified to incorporate a jet engine using the same airframe and implementing very few modifications.

After comparatively short service in the fighter role, all were converted as attack aircraft, redesignated A21R and A21RB respectively, and carrying 10 100mm or five 180mm Bofors rocket projectiles, or 10 80mm anti-tank rockets.

2024年2月23日 · Fitted with a 1 X 20mm cannon and 4 x 13.2mm heavy machine guns, the J21R was ideal for engaging hostile land-based forces. Saab's first jet fighter pilots also had an advantage in lining up...

The Saab 21R was a Swedish twin-boom fighter/attack aircraft made by SAAB. It was a jet-powered development of the piston-engined Saab 21 which along with the Russian Yakovlev Yak-15 was one of the only two jet fighters successfully converted from a …

2024年7月24日 · Note: Surviving Saab J21A modified to no longer existing jet version of this aircraft, A21R. On display at the Flygvapenmuseum (Swedish Air Force Museum).

The Saab 21R is a single-engine single-seat jet fighter and ground-attack aircraft produced by the Swedish manufacturer Saab AB, Svenska Aeroplan Aktiebolaget. The Saab-21R was designated J 21R and J 21RB by the Swedish Air Force (Flygvapnet).