minimum diameter

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  1. Brian-Tampa

    Motor Adapter for Minimum Diameter Rocket

    Looking to build my first minimum diameter rocket. Currently thinking of the Mad Cow 2.2 Go Devil. It of course takes a 54mm motor. I was planning on epoxying a 54mm minimum retainer and then utilizing Aero Pack extenders for different 54mm case lengths. I would also like to use 38mm motors in...
  2. Jon Dubrick

    Carbon fiber tubes

    Working on plans for min diameter 98mm vehicle. What ID does the tube need to be to catch the aft closure? Motor casing on forward end will be screwed in. Thanks
  3. J

    Go Devil 54 for L1/L2 cert questions

    So I recently bought the Go Devil 54 kit for my L1/L2 certification. My university rocketry club is helping guide me through how to build it, however they've never built a minimum diameter(md) rocket kit and this is the first rocket I've ever gotten. I've researched motor mounting on md rockets...
  4. M

    Minimum Diameter Rocket Build - Motor Questions

    I bought a Madcow 54mm FW nosecone and darn it, it didn't fit in the LOC 54mm tubing I have. I don't want to sand fiberglass, so naturally, I decided to buy all the matching Madcow FW tubing and some G10 fins and make it a minimum diameter! I think I have an idea of how I'm going to do the build...
  5. H

    Minimum Diameter F Rocket

    Is it a bad idea to design a minimum diameter F-class rocket? My concern is the structural integrity of the rocket. I intend on 3D printing (PLA) it with a wall thickness of about 2-3mm. Does anyone have any experience with 3D printing minimum diameter mid-power rockets? Thanks
  6. BackSeatBryce

    Need Input on my 3" Min Diameter Project

    Hey everyone, I'm working on a 3" min diameter rocket, and overall I'm feeling pretty good about the design, but I have a few questions. A screenshot of the rocket is below, and I'll attach the OpenRocket file as well. 1. A friend suggested that I move the fins a bit forward to maybe 1" or...
  7. A

    TeleMetrum apogee deploy

    Hey guys has anyone used a Telemetrum for single deploy before? Like deploy main at apogee and thats it? And also if a 28 inch parachute is deployed as a parachute at like 10000ft and I am prepared to walk for however long it takes could I recover it? Like with GPS guidance from the telemetrum...
  8. slothead

    A min-diam design question that may be Mixing EX and Recovery

    In a minimum diameter design using a CTI motor, the motor adapter threads into the "plugged" ejection element of the motor to secure the aft end of the retention rod (that goes forward to the min diam retainer). The use of this arrangement requires the use of a plugged motor and does not allow...
  9. gfunk

    Skelenaut Redux

    Thanks to CoyoteNumber2 for the original Skelenaut inspiration in 2015 and sharing his lessons learned! I successfully flew my own Skelenaut this Christmas. The local clubs weren't sure they wanted to let this one fly untested, luckily I have my own FAA CoA on some private Midwest farmland for...
  10. lowga

    Do Rail Guides Really Improve Performance?

    On the surface, this seems like a silly question. Eliminating rail buttons, launch lugs, or similar protrusions from the airframe of a rocket shortly after launch would seem to eliminate a source of drag, and thus improve performance. But I'm curious if this has been tested in the real world...
  11. lowga

    JLCR in 38mm Rockets

    I'm working on a 38mm minimum diameter rocket to meet some very specific objectives. These include breaking mach 1, altitude exceeding one mile, and transmitting sensor data via telemetry back to the ground during flight. Have a 38mm carbon fiber airframe ready to go, along with one of the new...
  12. lowga

    Carbon Fiber Newbie Questions

    I've attempted in vain to research the answers I'm seeking on this forum, Google searches, etc. So here goes nothing. Pardon the newbie questions. I'm attempting to build my first ever rocket with a carbon fiber airframe. The desire isn't based on flight profile, but rather aesthetic reasons...
  13. W

    Hermes: Custom 38mm MD Build

    Welcome to my ambitious build! A little backstory: My name is Caden, I'm 18 years old and this is my first year in HPR. I've recently completed my level 2 certification and ever since I've been anxious to move onto something bigger and better (I know I'm another hot shot young guy). Below are...
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