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I'm involved in a rocketry contest at work - basically, the office in Maryland has challenged the Florida office to a max apogee contest.
The rocket shall utilize a 4 airframe and may be a commercially available kit or scratch built design.
The rocket shall use a designated commercially available 38mm CTI 4 grain I242 motor. The total Impulse is 548.2 Ns (123.24 lb-s)
The rocket shall utilize a dual-deploy recovery method. Teams may choose either the PerfectFlite SL100 or the Missile Works RRC3 altimeter.
The rocket shall be recovered intact and undamaged to the extent that it would be able to safely fly again to qualify.
The team shall utilize OpenRocket (free software) to design their rocket and simulate their flight. (Most commercial kits have .rkt files available for download.)
One team member shall be assigned as the designated builder in order to get L1 certification (unless previously certified).
As we have mostly "newbie" members here in Florida and some extra budget, we are building three kits to certify three people. So far we have picked out a Binder Design Excel DD kit, a LOC Precision Fantom EXL kit, and am looking for a recommendation on a third kit. OpenRocket shows the Binder Design rocket getting about 100' higher apogee than the LOC Fantom but we all know OpenRocket can be off by a bit on occasion.
Can anyone recommend any 4" kits that will max out the apogee on a CTI I242 motor?
Thanks!
The rocket shall utilize a 4 airframe and may be a commercially available kit or scratch built design.
The rocket shall use a designated commercially available 38mm CTI 4 grain I242 motor. The total Impulse is 548.2 Ns (123.24 lb-s)
The rocket shall utilize a dual-deploy recovery method. Teams may choose either the PerfectFlite SL100 or the Missile Works RRC3 altimeter.
The rocket shall be recovered intact and undamaged to the extent that it would be able to safely fly again to qualify.
The team shall utilize OpenRocket (free software) to design their rocket and simulate their flight. (Most commercial kits have .rkt files available for download.)
One team member shall be assigned as the designated builder in order to get L1 certification (unless previously certified).
As we have mostly "newbie" members here in Florida and some extra budget, we are building three kits to certify three people. So far we have picked out a Binder Design Excel DD kit, a LOC Precision Fantom EXL kit, and am looking for a recommendation on a third kit. OpenRocket shows the Binder Design rocket getting about 100' higher apogee than the LOC Fantom but we all know OpenRocket can be off by a bit on occasion.
Can anyone recommend any 4" kits that will max out the apogee on a CTI I242 motor?
Thanks!