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| Goddard series L sec - Rocket was equipped with movable-tailpiece steering, catapult launching; corrected well and strongly in flight. 9,817 bytes. 253 x 503 pixels. |
Series L Section C rockets included light tank construction, movable-tailpiece (i.e. gimbal) steering, catapult launching, and further development of liquid nitrogen tank pressure method. Lengths varied from 17 ft 4.25 in. to 18 ft 5.75 in.; diameter 9 in., weight empty varied from 80 to 109 lb; loaded weight about 170 lb or more; lift of static tests varied from 228 lb to 477 lb; jet velocities from 3960 to 5340 ft/sec.
Liftoff Thrust: 216 kgf. Total Mass: 78 kg. Core Diameter: 0.2 m. Total Length: 5.6 m.
These would run through August 9, 1938 (L16-L30). Section C rockets included light tank construction, movable-tailpiece (i.e. gimbal) steering, catapult launching, and further development of liquid nitrogen tank pressure method. Lengths varied from 17 ft 4.25 in. to 18 ft 5.75 in.; diameter 9 in., weight empty varied from 80 to 1091b; loaded weight about 170 lb or more; lift of static tests varied from 228 lb to 477 lb; jet velocities from 3960 to 5340 ft/sec. These tests indicated extremely high temperatures for the jet: pebbles of the cement gas deflector were fused and thrown out, starting fires more than 50 ft from the tower.
Rocket was equipped with movable-tailpiece or gimbal steering, with wire-wound tanks and barograph; length 18 ft 5.5 in.; diameter 9 in.; weight empty 95 lb 5 oz; loaded 162 lb 5 oz; 39 lb liquid oxygen, 28 lb gasoline; altitude 2055 ft; duration 28 sec; parachute opened near ground, checked speed; coasted one-eighth of ascent; landed 1000 ft from tower.
Rocket was equipped with movable-tailpiece steering, catapult launching; length 18 ft 5.5 in.; diameter 9 in.; weight loaded 162 lb; altitude 2000+ ft; corrected well and strongly seven times in flight.
Short flight, leaned after leaving tower, fell 100 ft from tower; lift low.
Short flight, 500 ft plus coasting period, very fast in leaving tower; little smoke.
Rocket reached altitude 2170 ft; duration 15 sec; vertical to 800 ft, then leaned to right; landed 3000 ft from tower; little smoke.
Rocket reached altitude 4215 ft; duration of propulsion 25.3 sec; landed 6960 ft from tower; carried official NAA barograph.
Rocket reached altitude 140 ft; veered to right, landed 500-600 ft from tower.
Rocket reached altitude 4920 ft as determined from telescope; from NAA barograph, 3294 ft, but altitude appeared greater visually and by telescope; corrected well, parachute opened at maximum point of ascent. This completed Section C of the L series, conducted from July 1937-August 1938. It had included seven proving-stand tests and 8 flight test attempts, all of which resulted in flights. Average interval between tests 25 days. For the entire L Series, from May 1936-August 1938, there were 13 proving-stand tests 13 and 17 flight test attempts, all of which were successful. Average interval between tests was 22-25 days