From: Paul Holmes
Sent: Friday, May 30, 2008 10:47 AM
Subject: New Motors certified
To All,
I am very pleased to announce the first new motor certifications for
2008 for Contrail. These offerings add to their extensive line of
Monotube U/C Hybrids. This is also the announcement for the first Trojan
Motor System to be certified.
In the Monotube line these are all additional motors to established
motor sizes, tube lengths with two exceptions. There is the introduction
of a new propellant formula and a new case size in the 54 MM Monotubes.
1. G170PVC This 38 MM 16" Medium PVC motor is a 82.92 Total NS, 3% G ,
..5 second burn motor, and is a good motor for those applications
requiring a high average output in the low G range.
2. I247WS This the first of three motors in the new White Smoke
propellant line. This is a 54 MM, 28" Slow, 98% I Motor, 637 NS total,
with a 2.65 second burn time.
3. J277WS This is a 54 MM Slow White Smoke motor, the 36" version of the
above motor. It is certified as a 62% J, 1031.6 NS Total, 3.8 second
total burn time.
4. K525WS This is 48" version of the above WS motors albeit with a Fast
injector. This motor was a very stable 26% K, 1620 Total NS, 3 second
burn time.
5. K654BS This is a 75 MM 28" Slow 66% K motor, 2132 Total NS, burning
for 3.5 seconds
6. K500SP Last motor certified in this test session in the original U/C
line is a 54 MM 60" Fast Sparky motor. This motor has a 2237 NS total
with a 4.3 second burn time. Take note of the 60" case. There are other
motors to be delivered in this length but were not certified at this
session.
Finally, I can announce the first motor in the Trojan line of motors.
These motors are a case contained grain system but uses DOT certified
Nitrous Aluminum Nitrous flight tanks attached to a injector fitting
forward closure, reminiscent of the A*****ech Hybrid systems profile.
These motors are all fill and fire systems and utilize the same Pyrodex
preheater and will be eventually available in all Contrail grain
formulations.
1 H200BS The first motor is a 54 MM 3/16" injector motor utilizing a 300
CC tank. The H200BS is a 68% H, 268.96 NS Total, 1.37 seconds burn time
motor.
There is scheduled testing of the 54 MM Trojan motor line throughout the
summer in all tank sizes, injector and propellant types with the next
possible session due at the end of June.
This particular motor size was the first motor selected to test not for
only the motor system but to continue qualification of the
repaired/refurbished Vertical test stand as well as the new load cell
systems and initial full up testing of the new Hybrid fill and fire
equipment acquired late last year. The vertical stand has been qualified
now for all motors from the, soon to be announced, 29 MM Kosdon By
A*****ech reloads, all the way up to 54 MM case size and has been
utilized to certify up to 900 NS average motors with the A*****ech K805G
motor being the strongest to date.
Paul Holmes
Chairman, Tripoli Motor Testing
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