EeebeeE
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- Aug 7, 2011
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Last November I took advantage of the Rocketry Warehouse Black Friday sale and bought a DIY Kit. It is a 3" diameter "kit" with 30" airframe, 16" airframe, a coupler, 54mm motor tube, centering rings, a coupler and bulkheads to build an AV Bay, and a 6" x 30" sheet of G10 FG for the fins.
I started playing around with a design that could take a CTI 6-grain 54mm motor. Then I looked at the prices of those vs. the prices of a 3-grain 75mm motor. OK. 7,000 more feet for the same money. I have a 6-grain 54mm case ... AND a 3-grain 75mm case. Guess what case won?
This is "Houdini." Now you see it ... Now you don't.
Still working on the fin design. I know a lot of people who don't like raked fins, but they will be surface mounted, then covered tip-to-tip with 6 oz. FG. I might take some of the rake out. Components will include:
- Fil. Wound G12 airframe
- Fil. wound G12 4:1 aluminum tip nose cone
- 3/32 G10 fins covered with tip to tip FG
- Drogueless Apogee separation, 54" PML Main Chute
- AV Bay will include (I bet you will wonder how I fit all this into a 3" x 6" coupler tube):
- 2 x Perfect Flite Stratologger Altimeters
- 1 x Perfect Flite MT-4 Timer
- 2 720p HD Video Cameras
- Beeline tracker in the nose cone
Project will start in a week or so after I get the right epoxy for this. Anyone interested in seeing the build thread?
I started playing around with a design that could take a CTI 6-grain 54mm motor. Then I looked at the prices of those vs. the prices of a 3-grain 75mm motor. OK. 7,000 more feet for the same money. I have a 6-grain 54mm case ... AND a 3-grain 75mm case. Guess what case won?
This is "Houdini." Now you see it ... Now you don't.
Still working on the fin design. I know a lot of people who don't like raked fins, but they will be surface mounted, then covered tip-to-tip with 6 oz. FG. I might take some of the rake out. Components will include:
- Fil. Wound G12 airframe
- Fil. wound G12 4:1 aluminum tip nose cone
- 3/32 G10 fins covered with tip to tip FG
- Drogueless Apogee separation, 54" PML Main Chute
- AV Bay will include (I bet you will wonder how I fit all this into a 3" x 6" coupler tube):
- 2 x Perfect Flite Stratologger Altimeters
- 1 x Perfect Flite MT-4 Timer
- 2 720p HD Video Cameras
- Beeline tracker in the nose cone
Project will start in a week or so after I get the right epoxy for this. Anyone interested in seeing the build thread?
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