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Yes, I do realize there's a kit out there with that name, but I'm making my own tube-finned rocket, and for this venture, I'm leaving my comfort zone of a single, glued in motor mount and making the option for different sized motors as well as clusters. The rocket is already half built, but another user out in the forum asked for a build thread (I'll find his name later), so here's where I am.
The Rocket is a BT-70 airframe-based, using a BT-80 cut up for Fins. This is the left-over Tube from my "Drag Queen" rocket built a few months back. I am using BT-70 couplers to build the motor mounts, and inside the airframe is a "thrust ring" that the coupler pushes against as the motor fires. At ejection, I'm hoping the coupler has more friction than the nosecone and pops out the laundry, although I may hedge that bet with a little masking tape during flight.
Okay:
Image #1) The rocket as it stands currently, no paint yet, heck not even a shock cord yet. But you can see that it's Totally Tubular. I'm using paper drinking straws that act as butresses for the tube fins as well as "choose your own launch lug", additionally, paper straw is again used inside the tube fins to hold those steady.
Image #2) A 24mm single motor motor mount. I have cut about a 1/4" off each coupler to give me room for the plywood centering rings and the glue for the motor tube. The amount cut off each coupler gets used to build the thrust ring.
Image #3) The thrust ring inside the airframe. Built from leftovers of the couplers I cut down, and glued inside the airframe. I left it wide open in case I decide to build a 29mm motor mount.
Image #4) Showing the completed motor mount inside the airframe, with enough space sticking out that I can easily remove the motor mount and swap in a different one. That's where it sits against the thrust ring intentionally. It's parallel with the end of the tube fins.
Image #5) details my next motor mount build into a coupler. It will be dual 24mm, allowing me to run 2 D or 2 E motors if I so choose. There are also plans for a cluster of 3 18mm and a cluster of 4 18mm and possibly a 29mm.
The Rocket is a BT-70 airframe-based, using a BT-80 cut up for Fins. This is the left-over Tube from my "Drag Queen" rocket built a few months back. I am using BT-70 couplers to build the motor mounts, and inside the airframe is a "thrust ring" that the coupler pushes against as the motor fires. At ejection, I'm hoping the coupler has more friction than the nosecone and pops out the laundry, although I may hedge that bet with a little masking tape during flight.
Okay:
Image #1) The rocket as it stands currently, no paint yet, heck not even a shock cord yet. But you can see that it's Totally Tubular. I'm using paper drinking straws that act as butresses for the tube fins as well as "choose your own launch lug", additionally, paper straw is again used inside the tube fins to hold those steady.
Image #2) A 24mm single motor motor mount. I have cut about a 1/4" off each coupler to give me room for the plywood centering rings and the glue for the motor tube. The amount cut off each coupler gets used to build the thrust ring.
Image #3) The thrust ring inside the airframe. Built from leftovers of the couplers I cut down, and glued inside the airframe. I left it wide open in case I decide to build a 29mm motor mount.
Image #4) Showing the completed motor mount inside the airframe, with enough space sticking out that I can easily remove the motor mount and swap in a different one. That's where it sits against the thrust ring intentionally. It's parallel with the end of the tube fins.
Image #5) details my next motor mount build into a coupler. It will be dual 24mm, allowing me to run 2 D or 2 E motors if I so choose. There are also plans for a cluster of 3 18mm and a cluster of 4 18mm and possibly a 29mm.