BryRocket
Well-Known Member
- Joined
- Jun 19, 2017
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I have a simple motor ejection rocket that will fly on CTI 29mm reloads. Their instructions indicate each charge is 1.2g BP. This rocket is 2.1" PML phenolic tubing with a piston system. The length to be pressurized is only 18" long. PML suggests somewhere around 0.6g as to not damage the piston and have too violent of an ejection. Can the cap be pulled back and some of the BP removed? Would it be best to scrape out x mass of BP or to remove it all and then just add back the desired quantity? Or...Just go with it as is?? I know I only use 1g on my charges in a larger rocket and that blow off the nose cone with 2 shear pins.
Thoughts?
Thoughts?