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mahatmakanejeeves

(61,315 posts)
Fri Dec 6, 2024, 10:25 AM Friday

On this day, December 6, 1957, America's first attempt at putting a satellite into orbit failed.

In 1957, America’s first attempt at putting a satellite into orbit failed as Vanguard TV3 rose about four feet off a Cape Canaveral launch pad before crashing down and exploding,

richmond.com
Today in history: Dec. 6
In 1957, America’s first attempt at putting a satellite into orbit failed as Vanguard TV3 rose about four feet off a Cape Canaveral launch pad





Wed Dec 6, 2023: On this day, December 6, 1957, America's first attempt at putting a satellite into orbit failed.

Tue Dec 6, 2022: Dec. 6, 1957: America's first attempt at putting a satellite into orbit failed as Vanguard TV3 ...
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On this day, December 6, 1957, America's first attempt at putting a satellite into orbit failed. (Original Post) mahatmakanejeeves Friday OP
Boom Dennis Donovan Friday #1

Dennis Donovan

(26,846 posts)
1. Boom
Fri Dec 6, 2024, 10:32 AM
Friday


Vanguard TV-3 (also called Vanguard Test Vehicle-Three), was the first attempt of the United States to launch a satellite into orbit around the Earth, after the successful Soviet launches of Sputnik 1 and Sputnik 2. Vanguard TV-3 was a small satellite designed to test the launch capabilities of the three-stage Vanguard and study the effects of the environment on a satellite and its systems in Earth orbit. It was also to be used to obtain geodetic measurements through orbit analysis. Solar cells on Vanguard TV-3 were manufactured by Bell Laboratories.

At its launch attempt on 6 December 1957, at Cape Canaveral Air Force Station, the booster ignited and began to rise, but about two seconds after liftoff, after rising about 1.2 m (four feet), the rocket lost thrust and fell back to the launch pad. As it settled, the fuel tanks ruptured and exploded, destroying the rocket and severely damaging the launch pad. The Vanguard 1A satellite was thrown clear and landed on the ground a short distance away with its transmitters still sending out a beacon signal. The satellite was damaged, however, and could not be reused. It is now on display at the National Air and Space Museum of the Smithsonian Institution.

The exact cause of the accident was not determined with certainty, but it appeared that the fuel system malfunctioned. Other engines of the same model were modified and did not fail.
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