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  1. #1
    Join Date
    17th August 2016
    Location
    New Jersey
    Posts
    28

    Interchangacle altimeter bays

    I suspect the answer I will get...but here goes.....

    I have just built a 4 inch diameter ebay for a cardboard sided rocket, i

    I also have a 4 inch diameter fiberglass Rocket

    Can i use the cardboard 4 inch ebay in the FG rocket? Do you know of anyone who has?


  2. #2
    Join Date
    23rd July 2011
    Location
    Butte, MT
    Posts
    2,727
    Quote Originally Posted by spence View Post
    I suspect the answer I will get...but here goes.....

    I have just built a 4 inch diameter ebay for a cardboard sided rocket, i

    I also have a 4 inch diameter fiberglass Rocket

    Can i use the cardboard 4 inch ebay in the FG rocket? Do you know of anyone who has?
    Maybe not; it depends on how much you intend to push the fiberglass rocket. Iíve had rockets break at the coupler using even phenolic.
    However, if you line the coupler with fiberglass or build a fiberglass avbay, you could use it in either provided the fit is good.

    Steve Shannon
    L3CC, TAP, Director, Tripoli Rocketry Association

  3. #3
    Join Date
    29th December 2013
    Location
    Bayport MN
    Posts
    169
    I went to using a 3D printed drill guide last year that would make swapping av bays a lot easier. I chose creating easily swapable sleds instead. 2 eggtimer quantum Wifi altimeters and an eggfinder TX GPS will fit in a 54mm coupler. No switches required!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    L1 - Madcow 4" Phoenix I180 Skidmark 1651 feet
    L2 - Darkstar 2.6" J145 Skidmark longburn 4787 feet
    L3 - Terminator 5" M1297 White Lightning 8602 feet

    TRA 15743
    NAR 30949
    http://www.rocketreviews.com/karl-tyrrells-page.html

  4. #4
    Join Date
    19th January 2009
    Location
    Stafford VA
    Posts
    7,188
    I thought you were going to ask about swappable sleds. I started doing this. I've since went to one sled and one av-bay for each rocket. It costs more to buy the multiple altimeters, but it makes the flying so much easier.
    Handeman

    TRA #09903 L3 3/29/2015

    "If you don't use your head, you have to use your feet!" my Dad

    Tripoli Central Virginia #25 - BattlePark.org

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