业余火箭发动机总冲的字母表示法(国际标准)
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Motor impulse by Class
Class Total Impulse (Metric Standard) Total Impulse (Imperial Standard)
A 1.26-2.50 N·s 0.29-0.56 lbf·s
B 2.51-5.00 N·s 0.57-1.12 lbf·s
C 5.01-10.00 N·s 1.13-2.24 lbf·s
D 10.01-20.00 N·s 2.25-4.48 lbf·s
E 20.01-40.00 N·s 4.49-8.96 lbf·s
F 40.01-80.00 N·s 8.97-17.92 lbf·s
G 80.01-160.00 N·s 17.93-35.96 lbf·s
H 160.01-320.00 N·s 35.97-71.92 lbf·s
I 320.01-640.00 N·s 71.93-143.83 lbf·s
J 640.01-1280.00 N·s 143.84-287.65 lbf·s
K 1,280.01-2,560.00 N·s 287.66-575.30 lbf·s
L 2,560.01-5,120.00 N·s 575.31-1150.60 lbf·s
M 5,120.01-10,240.00 N·s 1150.61-2301.20 lbf·s
N 10,240.01-20,480.00 N·s 2301.21-4602.40 lbf·s
O 20,480.01-40,960.00 N·s 4602.41-9204.80 lbf·s
[s:9] 40,960.01-81,920.00 N-s 9204.81-19409.60 lbf·s
Q 81,920.01-163,840.00 N-s 19409.61-38819.20 lbf·s
R 163,840.01-327,680.00 N-s 38819.21-77638.40 lbf·s
S 327,680.01-655,360.00 N-s 77638.41-155276.80 lbf·s
T 655,360.01-1,310,720.00 N-s 310553.81-621107.2 lbf·s
U 1,310,720.01-2,621,440.00 N-s 621107.21-1242214.40 lbf·s
V 2,621,440.01-5,242,880.00 N-s 1242214.41-2484428.80 lbf·s
W 5,242,880.01-10,485,760.00 N-s 2484428.81-4968857.60 lbf·s
X 10,485,760.01-20,971,520.00 N-s 4968857.60-9937715.2 lbf·s
附:最小安全距离表(可以考虑适当加大)
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LAUNCH SITE DIMENSIONS
总冲(N-sec) 发动机级别 发射场最小安全半径 (英尺)
0.00--1.25 1/4A, 1/2A 50
1.26--2.50 A 100
2.51--5.00 B 200
5.01--10.00 C 400
10.01--20.00 D 500
20.01--40.00 E 1000
40.01--80.00 F 1000
80.01--160.00 G 1000
160.01--320.00 Two Gs 1500