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This is a Vanguard TV-2BU rocket, the U.S.'s first rocket specifically designed to launch satellites. As part of the Vanguard program, the Vanguard TV-2BU test vehicle was prepared for launch by the Martin Company on September 3, 1957. But due to a technical problem the mission was cancelled. The next launch opportunity was on June 22, 1959. However, the TV-4BU test version of the Vanguard was launched instead and orbited Vanguard 3.

Meanwhile, on March 17, 1958, the first successful Vanguard satellite was launched as Vanguard 1 atop a Vanguard TV-3BU rocket. The TV-2BU rocket was thus never used in the program but was essentially a duplicate of the Vanguard 1 vehicle and had the same markings. This TV-2BU was donated to the Smithsonian in 1958 by the Naval Research Lab.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date 1958 Country of Origin United States of America Type CRAFT-Missile & Rocket Parts Manufacturer Martin Co.
 Dimensions Overall: 72 ft. tall × 45 in. diameter, 1800lb. (2194.6 × 114.3cm, 816.5kg)
3-D (A19580114000A, Rigging): 118.4 × 19.7 × 18.4cm (46 5/8 × 7 3/4 × 7 1/4 in.)
Storage (A19580114000A, Rigging): 123.2 × 27.9 × 26.7cm (48 1/2 × 11 × 10 1/2 in.)
 Materials HAZMAT: Cadmium Plating, Magnesium
Overall, aluminum with riveted magnesium sheet skin; the first and second stage integral tanks are of aluminum with riveted magnesium sheet skins; second stage tanks of stainless steel, aluminum frames and magnesium stringers and skin.
A19580114000A, Rigging: Steel, Paint, Cadmium Plating
 Alternate Name Vanguard Rocket Inventory Number A19580114000 Credit Line Naval Research Laboratory Data Source National Air and Space Museum Restrictions & Rights Open Access (CCO)
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