118
3 A Brief History of Space Flight
Table 3.1 (continued)
20
Dec.18, 1936
Series L-B
1
Turn to horizontal flight
after launching
21
Feb. 1, 1937
Series L-B
570
20.5
22
Feb. 27, 1937
Series L-B
460
20
23
March 26, 1937
Series L-B
2700
22.3
Max flight altitude
24
April 22, 1937
Series L-B
2000
21.5
25
May 19, 1937
Series L-B
990
29.5
26
July 28, 1937
Series L-C
630
28
27
Aug. 26, 1937
Series L-C
600
28
Nov. 24, 1937
Series L-C
30
29
March 6, 1938
Series L-C
160
30
March 17, 1938
Series L-C
660
15
31
April 20, 1938
Series L-C
1260
25.3
32
May 26, 1938
Series L-C
40
33
Aug. 9, 1938
Series L-C
1500
Optic altitude
1000
Pressure altitude
34
Aug. 9, 1940
Series P-C
90
35
May 8, 1941
Series P-C
80
cooling. For this reason, a number of flight tests had done, but the problems had not
been solved yet, even in the last flight in 1941.
At that time, the liquid rockets were being to a cutting-edge science and technology
field, which is quite difficult. As a result, there were many deviations in Goddard’s
research methods. In addition, Goddard was too secretive about his studying work