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3 bytes removed ,  08:18, 4 February 2016
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*'''Is the motor certified?''' NAR, TRA, and NFPA Safety Codes require that only certified motors be used. Motors are certified by undergoing testing as set forth by the NFPA. TRA and NAR have a reciprocity agreement so that motors that are certified with one organization are upheld by the other. Main takeaway: make sure your motor is certified (it will be) and would be good to know which organization did the certification [http://www.thrustcurve.org/searchpage.jsp  (easily looked up online)].
 
*'''Is the motor certified?''' NAR, TRA, and NFPA Safety Codes require that only certified motors be used. Motors are certified by undergoing testing as set forth by the NFPA. TRA and NAR have a reciprocity agreement so that motors that are certified with one organization are upheld by the other. Main takeaway: make sure your motor is certified (it will be) and would be good to know which organization did the certification [http://www.thrustcurve.org/searchpage.jsp  (easily looked up online)].
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*'''What is the motor type, average thrust, and rocket weight? Is the delay time is approximate for rocket?''' Motors may be single-use or reloadable, and can be solid, liquid, or hybrids. SSI currently only uses solid motors. Your L1 motor will likely be a single-use motor as these are less prone to errors in assembly that can occur with reloadable casings. The rule of thumb regarding motor selection is a 5-to-1 thrust-to-weight ratio. The motor delay should be set appropriately for the rocket configuration and weather conditions. Motors with longer delays have lower weight recommendations so be sure to run simulations and have a good idea of what delay you need on launch day.
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*'''What is the motor type, average thrust, and rocket weight? Is the delay time approximate for rocket?''' Motors may be single-use or reloadable, and can be solid, liquid, or hybrids. SSI currently only uses solid motors. Your L1 motor will likely be a single-use motor as these are less prone to errors in assembly that can occur with reloadable casings. The rule of thumb regarding motor selection is a 5-to-1 thrust-to-weight ratio. The motor delay should be set appropriately for the rocket configuration and weather conditions. Motors with longer delays have lower weight recommendations so be sure to run simulations and have a good idea of what delay you need on launch day.
    
*'''Is the igniter a low-current igniter?''' '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION.''''' I repeat. '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION.''''' Low-current igniters, as their name suggest, ignite with very little current -- so little in fact that the continuity test can set them off. This means that if you do not follow this ''very important warning'', you could end up in a situation where you put your rocket on the rails, connect up the leads, go to press the button for continuity and '''''BAMMMMM''''' YOUR ROCKET GOES FLYING OFF IN FRONT OF YOUR FACE. '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION''''' AKA '''NO Electric Matches'''. E-matches are ok for ejection charges in avionics bays (for L2s+), but they should '''NOT''' be used for motor ignition.  
 
*'''Is the igniter a low-current igniter?''' '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION.''''' I repeat. '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION.''''' Low-current igniters, as their name suggest, ignite with very little current -- so little in fact that the continuity test can set them off. This means that if you do not follow this ''very important warning'', you could end up in a situation where you put your rocket on the rails, connect up the leads, go to press the button for continuity and '''''BAMMMMM''''' YOUR ROCKET GOES FLYING OFF IN FRONT OF YOUR FACE. '''''DO NOT USE LOW-CURRENT IGNITERS FOR YOUR MOTOR IGNITION''''' AKA '''NO Electric Matches'''. E-matches are ok for ejection charges in avionics bays (for L2s+), but they should '''NOT''' be used for motor ignition.  

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