Goddard A-Series Rocket, 1935

[Illustration: 20. Dr. Goddard in his workshop at Roswell, New

Mexico, October 1935.]

Robert Hutchings Goddard, the American rocket pioneer, was one of the

first to suggest the use of the rocket to gather scientific information

from high altitudes. As seamen use sounding lines to measure the depth

of unknown waters, so scientists use sounding rockets to investigate the

nature of our atmosphere. As early as 1917, the Smithsonian Institution

agreed to fund Dr. Goddard’s studies. In 1926, he built and flew the

world’s first successful liquid-propellant rocket which rose to an

altitude of 12.5 meters (41 feet) over a field in Massachusetts.

After the scientist received substantial grants from the Daniel and

Florence Guggenheim Foundation, he established a facility near Roswell,

New Mexico, where he built and tested a series of rockets and engines

between 1930 and 1942.

A-Series rockets—one on exhibit—were flown during the summer of 1935, as

part of Dr. Goddard’s program to develop methods of stabilizing his

rockets in vertical flight. The principles he pioneered in this area

were among his greatest contributions to the field of rocketry.

The greatest height reached by an A-Series rocket was about 2130 meters

(7000 feet) and the greatest speed in flight was more than 1130

kilometers per hour (700 miles per hour).

The rocket on exhibit is from Robert H. Goddard.

Length 4.7 m. (15 ft., 6 in.)

Diameter 15.2 cm. (6 in.)

Fuel Gasoline

Oxidizer Liquid oxygen

Thrust about 90 kg. (200 lb.)

Velocity 1130 km. (700 mi.) per hr. (+ or -)

Altitude 2.3 km. (7600 ft.) (+ or -)

Rockets, Missiles, and Spacecraft of the National Air and Space Museum, Smithsonian Institution · 第 14 / 67 题