Im new to high power staging and am looking to try it this summer. Ive been reading thru all relevant TRF and Rocketry Planet threads to gather information and learn from others experiences, but there seems to be a lack of discussion about upper stage igniters.
My project is an L2 size rocket, about 10 ft tall fully stacked. The sustainer is 4" in diameter with a 38mm motor mount and weighs about 6lbs empty, and the booster is 4" with a 54mm motor mount and weighs ~2 lbs empty. The electronics are an RRC2 altimeter and a Perfectflite miniTimer. The expected motor combination is close to a full J in the booster and igniting a full I motor about a second after burnout, achieving about 5500 ft. Im not going for altitude, just the joy of the project and pulling off something this complex.
As the upper stage motor will either be something like an Aerotech I284W or a CTI I540WT, both 38mm, Im looking for some advice about the igniter to use. If I go with the CTI motor, am I able to use the standard Pro 38 igniter that comes with the reload with a 9v batter and a miniTimer? Or alternatively, if I use the Aerotech white lighting load, what would an adequate igniter be? Im planning on using a standard 9v battery, but Im open to changing that.
If possible, Id like to test the ignition system on a lower scale G to F motor flight, but Im not sure that the system used to ignite a 38mm I motor or 38mm baby J would be compatible with a mid power rocket flying with an F motor.
My project is an L2 size rocket, about 10 ft tall fully stacked. The sustainer is 4" in diameter with a 38mm motor mount and weighs about 6lbs empty, and the booster is 4" with a 54mm motor mount and weighs ~2 lbs empty. The electronics are an RRC2 altimeter and a Perfectflite miniTimer. The expected motor combination is close to a full J in the booster and igniting a full I motor about a second after burnout, achieving about 5500 ft. Im not going for altitude, just the joy of the project and pulling off something this complex.
As the upper stage motor will either be something like an Aerotech I284W or a CTI I540WT, both 38mm, Im looking for some advice about the igniter to use. If I go with the CTI motor, am I able to use the standard Pro 38 igniter that comes with the reload with a 9v batter and a miniTimer? Or alternatively, if I use the Aerotech white lighting load, what would an adequate igniter be? Im planning on using a standard 9v battery, but Im open to changing that.
If possible, Id like to test the ignition system on a lower scale G to F motor flight, but Im not sure that the system used to ignite a 38mm I motor or 38mm baby J would be compatible with a mid power rocket flying with an F motor.