Gun-launched anchor projectile for climbing

A gun-launched, penetrating anchor projectile having a central longitudinal axis, comprising:

• an elongated penetrator made of a dense metallic material and centered on the central longitudinal axis, the elongated penetrator having an aft end that tapers in an aft direction and a central bore extending forward from the aft end;
• an expandable anchor in the form of a hollow cylinder disposed aft of the elongated penetrator and centered on the central longitudinal axis;
• a spacer made from a brittle material in the form of a hollow cylinder, the spacer being disposed aft of the expandable anchor and centered on the central longitudinal axis;
• a hammer made from a second dense metallic material in the form of a hollow cylinder, the hammer being disposed aft of the spacer and centered on the central longitudinal axis;
• a guide tube in the form of a tube centered on the central longitudinal axis and disposed radially inward of the expandable anchor, the spacer and the hammer;
• an outer sheath that encloses the elongated penetrator, the expandable anchor, the spacer and the hammer;
• a semi-rigid cable fixed at one end in the central bore of the elongated penetrator and extending in the aft direction through hollow interiors of the expandable anchor, the spacer, and the hammer;
• a pulley having a through bore, another end of the semi-rigid cable forming a loop that extends through the through bore of the pulley;
• a discarding sabot disposed around the projectile;
• and
• a fin assembly disposed around the projectile aft of the discarding sabot and forward of the pulley.