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North American XB-70 Valkyrie

12.4k TheGoldenEagle55  4 months ago

Hi there


The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation (NAA), the six-engined Valkyrie was capable of cruising for thousands of miles at Mach 3+ while flying at 70,000 feet (21,000 m).

At these speeds, it was expected that the B-70 would be practically immune to interceptor aircraft, the only effective weapon against bomber aircraft at the time. The bomber would spend only a brief time over a particular radar station, flying out of its range before the controllers could position their fighters in a suitable location for an interception. High speed also made the aircraft difficult to see on radar displays and its high-altitude and high-speed capacity could not be matched by any contemporaneous Soviet interceptor or fighter aircraft.

The introduction of the first Soviet surface-to-air missiles in the late 1950s put the near-invulnerability of the B-70 in doubt. In response, the United States Air Force (USAF) began flying its missions at low level, where the missile radar's line of sight was limited by terrain. In this low-level penetration role, the B-70 offered little additional performance over the B-52 it was meant to replace, while being far more expensive with shorter range. Other alternate missions were proposed, but these were of limited scope. With the advent of intercontinental ballistic missiles (ICBMs) during the late 1950s, manned bombers were increasingly seen as obsolete.

The USAF eventually gave up fighting for its production and the B-70 program was canceled in 1961. Development was then turned over to a research program to study the effects of long-duration high-speed flight. As such, two prototype aircraft, designated XB-70A, were built; these aircraft were used for supersonic test-flights during 1964–69. In 1966, one prototype crashed after colliding with a smaller aircraft while flying in close formation; the remaining Valkyrie bomber is in the National Museum of the United States Air Force near Dayton, Ohio.


AG1: Parachutes

VTOL down: foldable wingtips

Trim down: Flaps

No Droop Snoot sorry :(


The nose of the plane tends to rise when you travel at high speeds ,plus it is difficult to control at high altitudes








General Characteristics

  • Created On Android
  • Wingspan 78.8ft (24.0m)
  • Length 137.4ft (41.9m)
  • Height 26.1ft (8.0m)
  • Empty Weight N/A
  • Loaded Weight 372,438lbs (168,935kg)


  • Power/Weight Ratio 0.543
  • Wing Loading 39.0lbs/ft2 (190.3kg/m2)
  • Wing Area 9,555.7ft2 (887.8m2)
  • Drag Points 33905


  • Number of Parts 215
  • Control Surfaces 16
  • Performance Cost 1,397
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  • Profile image
    292 poopyamba

    Hey, I really like your plane and I think you did a great job. Just one improvement I would like you to add: Use this code for flaps: clamp(trim,0,-1) It makes the flaps only go down (keep the left inverted flap)

    +1 3 months ago
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    3,476 RPC3503

    I thought I'll only see this in GeoFS

    +1 3 months ago
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    Fun fact: the XB-70 does not have droop snoot

    +2 4 months ago
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    36.7k Trainzo

    Very great build . And GREAT screens .

    +1 4 months ago
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    @birb26 rip those who died

    +1 4 months ago
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    315 birb26

    @Aviationcheesesticks yeah this plane seemed familiar and i knew it was something about a midair collision, and your comment confirmed that

    +1 4 months ago
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    +1 4 months ago
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    the last picture Remind me of that mid air collision

    +3 4 months ago