This consisted of ten proving-stand tests for the development of a more powerful motor, 10 in. in diameter. Weight of rocket, about 225 lb; weight of fuels, 50-70 lb for the series.

Total Mass: 102 kg. Core Diameter: 0.3 m. Total Length: 3.0 m.

• Goddard begins tests of his K series rockets (K1-K10).

  This consisted of ten proving-stand tests for the development of a more powerful motor, 10 in. in diameter. Weight of rocket, about 225 lb; weight of fuels, 50-70 lb for the series.

• One of the best proving-stand tests of Goddard's K series of rockets.

  Lift 496 lb for 14 sec; weight liquid oxygen 31 lb; weight gasoline 24 lb; jet velocity, greater than 4470 ft/sec.

• Last and best of the proving-stand tests of Goddard's K series of rockets.

  Lift 623.5 lb for 4 sec; weight oxygen 25.5 lb; weight gasoline 13.5 lb; jet velocity greater than 4340 ft/sec. Average interval between K-series tests was 8 days.

• 482 - Goddard, Robert H, Collected Papers of Robert H Goddard, .