Classification of rocket boosters

The thrusters amateur rockets are classified by a letter. Each letter corresponds to a multiplication of power by 2. The propellants A, B, C are classified in pyrotechnic articles of entertainment categories K1 and K2: UN number: 0431 Risk class (for the transport): 1.4 G

Class Total Pulse
(Metric System)
Total Pulse
(Imperial System)
AT 1.26 – 2.50 Ns 0.29 – 0.56 lbf · s
B 2.51 – 5.0 N · s 0.57 – 1.12 lbf · s
C 5.01 – 10 N · s 1.13 – 2.24 lbf · s
D 10.01 – 20 N · s 2.25 – 4.48 lbf · s
E 20.01 – 40 N · s 4.49 – 8.96 lbf · s
F 40.01 – 80 N · s 8.97 – 17.92 lbf · s
G 80.01 – 160 N · s 17.93 – 35.96 lbf · s
H 160.01 – 320 N · s 35.97 – 71.92 lbf · s
I 320.01 – 640 N · s 71.93 – 143.83 lbf · s
J 640.01 – 1280 N · s 143.84 – 287.65 lbf · s
K 1280.01 – 2.560 N · s 287.66-575.3 lbf · s
The 2,560.01 – 5,120 N · s 575.31 – 1150.6 lbf · s
M 5,120.01 – 10,240 N · s 1150.61 – 2301.2 lbf · s
NOT 10240.01 – 20.480 N · s 2301.21 -4602.4 lbf · s
O 20480.01 – 40,960 N · s 4602.41 – 9204.8 lbf · s

 

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