Motor test CMT0803 picture page

CMT0803The nozzle is secured in place with a snap ring. CMT0803A so called "extension", which we use to beef up the ignition. CMT0803The bottom closure is placed. CMT0803The motor with grains inserted. CMT0803Wolfram carbide coating is applied to the O-ring and rim of the measurement head. CMT0803The bottom closure is secured with sturdy nuts. CMT0803As usual the motor test stand was carried to the test site. CMT0803The test motor rests on a pair of springs when placed in the motor test stand. CMT0803The safety membrane on the measurement head. CMT0803With the igniter installed the motor is ready for the test. CMT0803The start of the test. CMT0803A few moments later the motor is at its peak performance. CMT0803It burned quite long. CMT0803The last bits of propellant do not burn completely, hence the darker smoke.
CMT0803The pressure curve of CMT0803.
CMT0803The combined pressure curves of CMT0801 and CMT0803.
CMT0803The safety membrane always bulges a bit. CMT0803Some residue has been left on the support on which the motor rests, but most is in the smoke deflection pipe. CMT0803The test stand after the test. CMT0803All in anticipation of the results of the test. CMT0803Harry Advokaat and Elco Lagendijk disassemble the motor test stand.

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