Aerodynamics: Anatomy of Speed

Few airplanes now flying have provoked such far-out speculation as Lockheed's long-secret All. Since President Johnson gave the plane a sort of partial unveiling, it has been called "quasi-ballistic" and "suborbital"; it has been classed just below a Mercury capsule. Dopesters have fitted it with a rocket engine to boost it out of the atmosphere like the X-15 research plane.

Many of the far-out theories seem far from fact, but the All is nevertheless an extraordinary airplane, a technical generation ahead of any of its competitors. Lockheed's famed designer Clarence L. ("Kelly")...

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