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Bell 8048

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Agena A Stage
Credit: © Mark Wade

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AKA: LR81-B-1. Status: Out of production. Number: 20 . Thrust: 68.90 kN (15,489 lbf). Unfuelled mass: 127 kg (279 lb). Specific impulse: 276 s. Burn time: 120 s. Height: 2.16 m (7.08 ft). Diameter: 1.52 m (4.98 ft).

Harry Meyers made a major contribution to the development of Bell's Rascal and Agena engines. Although both of these engines were made of aluminum, the Agena started with a thick walled cylinder, and used a series of adjacent 3/16 inch drilled holes to create the same effect as stacked spaghetti rubes. These thrust chambers were coated, and worked well in the Agena engine.

Engine: 127 kg (279 lb). Chamber Pressure: 10.00 bar. Area Ratio: 20. Propellant Formulation: RFNA/UDMH. Thrust to Weight Ratio: 55.3622047244095. Coefficient of Thrust vacuum: 2.03929071027152.