boomtube-mk2
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I am well into the construction stage of my Cosmodrome Rocketry Aerobee-Hi. I have the electronics for the sustainer ignition and I have a system worked out for mounting it and routing the wires etc.
Im including an altimeter in the nose cone/payload bay for deploying the parachute so I dont have to rely on the motor, as it is always possible it might not light. As a side benefit of not using motor deployment I dont have to duct the ejection gases around the lower electronics bay where the staging timer/battery is located.
I included a 38mm motor tube in the booster but retained the 29mm tube for the sustainer, whose length will allow for an AeroTech 180 case or others of equivalent length.
So to make a long story short, I know; too late for that, my question is; what is the most reliable low current Igniter I can get my hands on and what is the easiest motor brand/propellant type to ignite?
I have heard that CTI has its own BP charge to aid in ignition and actually uses a low current E-match style igniter.
What technique/s can I use that would increase the odds of sustainer motor ignition?
FYI; in this rocket the staging electronics is housed above the sustainer motor; my idea is to have the booster air-drag separate at booster motor burnout.
Im including an altimeter in the nose cone/payload bay for deploying the parachute so I dont have to rely on the motor, as it is always possible it might not light. As a side benefit of not using motor deployment I dont have to duct the ejection gases around the lower electronics bay where the staging timer/battery is located.
I included a 38mm motor tube in the booster but retained the 29mm tube for the sustainer, whose length will allow for an AeroTech 180 case or others of equivalent length.
So to make a long story short, I know; too late for that, my question is; what is the most reliable low current Igniter I can get my hands on and what is the easiest motor brand/propellant type to ignite?
I have heard that CTI has its own BP charge to aid in ignition and actually uses a low current E-match style igniter.
What technique/s can I use that would increase the odds of sustainer motor ignition?
FYI; in this rocket the staging electronics is housed above the sustainer motor; my idea is to have the booster air-drag separate at booster motor burnout.