T-shaped metallic instrument designed to penetrate the lunar soil and simultaneously measure the resistance to this penetration. Upper canister housing attached to the top of a long shaft and a reference pad assembly attached to the bottom. A recording drum contained in the upper canister. Equipped with a 2.54 x 12.7 cm bearing plate and three penetrating cones with base areas of 1.29, 3.22, and 6.45 square cm and a 30 degree apex angle that could be attached to the bottom of the penetration shaft at the reference pad. Created by Mark Avino Date Created 08/04/2015 Source Smithsonian National Air and Space Museum Keywords Apollo Program; Equipment; Human Spaceflight; Missions; Moon; Space; Tools Rights and Restrictions CC0
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