Nordamerikansk B-45C Tornado

North American B-45 Tornado

LandUsa
RolleJetbombefly
Første flyvning24. februar 1947
Bygget143

Den Nordamerikansk B-45 Tornado var det amerikanske luftvåbens (USAF) første operationelle jetbombefly og det første multijetmotorede bombefly i verden, der blev tanket i luften. B-45 var en vigtig del af USA's nukleare afskrækkelse i flere år i begyndelsen af 1950'erne, men blev snart erstattet af Boeing B-47 Stratojet. B-45'ere og RB-45'ere gjorde tjeneste i United States Air Force's Strategic Air Command fra 1950 til 1959.

Kilde: Nordamerikansk B-45C Tornado på Wiki

North American B-45C Tornado
FotografJohn Dælen
LokaliseringNationalmuseet for USAF
Billeder26
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Køb mig en kaffeKøb mig en kop kaffe

North American B-45A-1-NA Tornado Walk Around
FotografVladimir Yakubov
LokaliseringCastle Air Museum, Atwater
Billeder121

Se også:

Anden Verdenskrig: Den definitive visuelle historie fra Blitzkrieg til atombomben (DK Definitive Visual Histories) - Amazon Anden Verdenskrig Kort efter Kort (DK Historie Kort efter kort) - Amazon

North American RB-45C Tornado Walk Around
FotograferRandy Ray og John Heck
LokaliseringStrategisk luft- og rummuseum
Billeder109
B-45C Tornado Walk Around
FotografStephen Muth
LokaliseringUnknow
Billeder54
B-45C Tornado Walk Around
FotografHoward Mason
LokaliseringUnknow
Billeder19
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A Bridge Between Eras

Den Nordamerikansk B-45 Tornado holds the distinction of being the first jet-powered bomber to enter service with the U.S. Air Force and the first to carry a nuclear weapon. Developed at the tail end of WWII, it was a transition aircraft—pairing a traditional, straight-wing bomber layout with the revolutionary new power of four turbojets. While it was quickly overshadowed by the swept-wing B-47 Stratojet, the Tornado proved vital during the early Cold War as a nuclear deterrent and a high-altitude reconnaissance platform.

Attribute Technical Specification (B-45A)
Rolle Light/Medium Bomber & Reconnaissance
Besætning 4 (Pilot, Co-Pilot, Bombardier-Navigator, Tail Gunner)
First Flight March 17, 1947
Kraftværk 4 × General Electric J47-GE-13 turbojets
Thrust 5,200 lbf (23 kN) per engine
Maximum Speed 566 mph (911 km/h)
Service Ceiling 46,000 ft (14,000 m)
Bevæbning 2 × .50 cal M3 machine guns (tail); Up to 22,000 lbs of bombs

Design Engineering: Twin Nacelles and Nuclear Adapters

  • Twin Engine Nacelles: To keep the wing “clean,” North American paired the four engines into two large pods. This design provided significant thrust but concentrated a massive amount of weight on the straight wing, which limited the aircraft’s top speed compared to later swept-wing designs.
  • The Bomb Bay: The B-45 was designed with a massive internal bomb bay. Because early nuclear weapons (like the Mark 5) were so large, the B-45 had to be retrofitted with specialized “Silverplate” style modifications to carry and release them.
  • Direct Vision Cockpit: Unlike the fighter-style bubble canopies of the later B-47, the B-45 featured a traditional “greenhouse” nose for the bombardier, reflecting its design heritage from WWII heavy bombers like the B-25 Mitchell.
  • High-Speed Stability: The B-45 was noted for its exceptionally smooth flight characteristics at high altitudes, making it an ideal platform for the precision required in aerial photography and early electronic intelligence (ELINT).

Combat History: The Secret Spy of the RAF

  • The Korean War: While not used for heavy bombing in Korea due to the success of the B-29, the RB-45C (reconnaissance version) flew dangerous missions over the peninsula, relying on its speed to evade North Korean MiGs—though it eventually required escort.
  • Operation Ju-jitsu: In one of the most secretive chapters of the Cold War, the Royal Air Force (RAF) “borrowed” B-45s from the USAF. Since US pilots were forbidden from overflying the Soviet Union, British crews in US markings flew daring deep-penetration night reconnaissance missions over Soviet territory to map radar defenses.
  • Nuclear Pioneer: The B-45 was the first jet capable of mid-air refueling, a capability that allowed it to reach targets deep within Eastern Europe from bases in the United Kingdom.
  • Rapid Obsolescence: The Tornado’s career was short. By 1959, the much faster and longer-ranged B-47 Stratojet had completely replaced it in the bomber role, though the RB-45C reconnaissance models served slightly longer.

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