12 New Contrail Motors Released

To All:

Contrail Rockets LLC. Is happy to announce the certification of 12 new Hybrid Rocket Motors. The New Certification include motors in the sizes of 38mm, 54mm, 75mm and 98mm. Motors range from G to M impulse, and are available immediately from Contrail Rockets and Dealers. The newly certified motors are as follows:

38mm G-234 H-248 54mm J-245 J-234 K-234 K-321 K-555 75mm K-630 K-707 L-369 98mm M-1575 M-2800

Information on these reloads can be found on our website, including video of all of the Static Firings. These new motors mark the release of 2 new sizes of hardware from Contrail Rockets. Both the 54mm and

98mm Motors are new lines from Contrail Rockets. All fuels in these sizes are currently certified using the very popular Black Gold Fuel.

For More information please visit our website. The Message from Paul Holmes (TMT Chair) on motor certification can be found below: To all,

I am pleased to announce new motors from Contrail Rockets, Thomas Sanders, Head Gas Man. Thomas continues to flesh out his 38 and 75 MM lines, with the addition of two more sparky motors. Of note is the 75

3200 S SP(arky) motor, with 10.5 seconds of sparks and a respectable 140 pounds of impulse to start, tailing down to 60# at 8 seconds, with a vapor phase from there.

Newly introduced is two motors in his 98 MM line. These are of the building block system, using combustion and pressure vessel bolt together construction. His 98 5300 XF BG motor rises to 1100 pounds of impulse, tailing straight off to zero at 2.5 seconds.

Thomas also introduces 5 motors in the debut of his 54 MM line. His 54 MM line are of U/C Floating injector, integral tank style and starts out with his Black Gold Propellant, also used in the 75 and 98 MM systems. It is also a multi port injector system of the same design as his 75 and 98 MM lines albeit with a forward closure vent. Of note is his 54 48 S BG system, a real nice 29% K motor with a 7.5 second burn time and with a peak initial of 100 pounds of impulse in a regressive straight line to 40 pounds impulse and vapor start at 6 seconds

The specific data is as follows:

Name, TMT, Size, Total NS, Burn Time, Ready Weight, Grams (without NOS)

38 MM G234, G221 47%, 38 16 F HP, 117.95, .53, 544 H248, H245 63%, 38 28 F PVC, 261.54, 1.06, 793,79

54 MM J245, J245 0%, 54 28 S BG, 643.5, 2.62, 1550 J234, J239 61% 54 36 S BG, 1032.57, 4.3 1764 K234, K234 29%, 54 48 S BG, 1656.95, 7.04, 2063 K321, K320 22% 54 48 M BG, 1569.9, 4.89, 2043 K555, K554 31% 54 48 XF BG, 1686.47, 3.04, 2038

75 MM K630, K609 4%, 75 1400 M SP, 1340.61, 2.2 3550 K707, K697 8%, 75 1400 M BG, 1385.83, 1.9 3674 L369, L361 49%, 75 3200 S SP, 3828.70, 10.5, 4800

98 MM M1575, M1555 27% 98 5300 M BG, 6546.8, 4.2, 10863.53 M2800, M2568 18%, 98 5300 XF BG, 6059.8, 2.35, 10704

The next test session for Contrail will be in March.

Paul Holmes, Chairman, Tripoli Motor Testing

Thanks Tom Sanders

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