Motor test CMT0803 picture page
The nozzle is secured in place with a snap ring.
A so called "extension", which we use to beef up the ignition.
The bottom closure is placed.
The motor with grains inserted.
Wolfram carbide coating is applied to the O-ring and rim of the measurement head.
The bottom closure is secured with sturdy nuts.
As usual the motor test stand was carried to the test site.
The test motor rests on a pair of springs when placed in the motor test stand.
The safety membrane on the measurement head.
With the igniter installed the motor is ready for the test.
The start of the test.
A few moments later the motor is at its peak performance.
It burned quite long.
The last bits of propellant do not burn completely, hence the darker smoke.
The pressure curve of CMT0803.
The combined pressure curves of CMT0801 and CMT0803.
The safety membrane always bulges a bit.
Some residue has been left on the support on which the motor rests, but most is in the smoke deflection pipe.
The test stand after the test.
All in anticipation of the results of the test.
Harry Advokaat and Elco Lagendijk disassemble the motor test stand.






