R4M, abbreviation for Rakete, 4 kilogramm, Minenkopf, also known by the nickname Orkan due to its distinctive smoke trail when fired, was a folding-fin air-to-air rocket used by the Luftwaffe at the end of World War II.
R4M "Orkan" on display at the German Museum of Technology
Me 262 with R4M underwing rockets on display at the Technikmuseum Speyer, Germany
Me 262 with R4M underwing rockets on display at the Evergreen Aviation & Space Museum, United States
A B-24 shot down by Rudolf Rademacher with the R4M
The Messerschmitt Me 262, nicknamed Schwalbe in fighter versions, or Sturmvogel in fighter-bomber versions, is a fighter aircraft and fighter-bomber that was designed and produced by the German aircraft manufacturer Messerschmitt. It was the world's first operational jet-powered fighter aircraft.
Messerschmitt Me 262
Hans Guido Mutke's Me 262 A-1a/R7 on display at the Deutsches Museum in Munich
Me 262 cockpit
Me 262 A-1a on display at RAF Cosford.