Thrust Class List

  Each Letter of a Rocket Motor or Engines Thrust Class is Twice as powerful as the Class prior to it.  The first four classes are easiest to obtain since most hobby store and some retail stores carry them.  The first four A through D comprise the lower power range.  Most rockets use motors in this range since that are cheap and easily obtained.  The range of E through G comprise of the Mid Power range.  The High Power range of H and higher is a Restricted Range Requiring more skill and following legal procedures to be able to obtain.

Class	Minimum Impluse	Maximum impulse
A	1.26	2.50
B	2.51	5.00
C	5.01	10.00
D	10.01	20.00
E	20.01	40.00
F	40.01	80.00
G	80.01	160.00
H	160.01	320.00
I	320.01	640.00
J	640.01	1,280.00
K	1,280.01	2,560.00
L	2,560.01	5,120.00
M	5,120.01	1,0240.00
N	10,240.01	2,0480.00
O	20,480.01	4,0960.00
P	40,960.01	8,1920.00
Q	81,920.01	163,840.00
R	163,840.01	327,680.00
S	327,680.01	655,360.00
T	655,360.01	1,310,720.00
U	1,310,720.01	2,621,440.00
V	2,621,440.01	5,242,880.00
W	5,242,880.01	10,485,760.00
X	10,485,760.01	20,971,520.00
Y	20,971,520.01	41,943,040.00
Z	41,943,040.01	83,886,080.00