A heat shield protected the Gemini spacecraft against the enormous heat of reentry into the atmosphere beginning at a velocity of more than 27,500 kilometers (17,000 miles) per hour. Like those of other early manned spacecraft, Gemini's heat shield derived from ballistic-missile warhead technology. The dish-shaped shield created a shock wave in the atmosphere that held off most of the heat. The rest dissipated by ablation--charring and evaporation of the shield's surface. Ablative heat shields are not reusable.
This piece was part of the heat shield of an unknown Gemini mission.
Display Status
This object is on display in Human Spaceflight at the Steven F. Udvar-Hazy Center in Chantilly, VA.
Object Details
Country of Origin
United States of America
Type
SPACECRAFT-Crewed-Parts & Structural Components
Manufacturer
McDonnell Aircraft Corp.
Dimensions
Approximate: 2 3/4 in. deep x 4 in. long x 4 in. wide (6.99 x 10.16 x 10.16cm)
Materials
Base: Resin-impregnated fiberglass
Honeycomb filling: Dow-Corning DC-325 ablative material
Inventory Number
A20040124000
Credit Line
Found in collection. Donor unknown at this time. Found on NASM premises.
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
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