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Thread: Rear deploy streamer in 13mm rockets

  1. #1
    Join Date
    7th September 2011
    Location
    Utah, United States
    Posts
    27

    Rear deploy streamer in 13mm rockets

    I have a copy / pdf of the Star Trooper instructions showing rear ejection with a streamer and was wondering if it is possible to do something similar in say a Quark or 220 Swift? I would like to put a streamer on a couple of these so they will be easier to find / track during recovery.

    I had thought of using some Kevlar thread, crimped onto a small split shot lead sinker, then drop that into the nose cone with a little epoxy to hold it in place. I have some 1/4" and 1/2" teflon plumbers tape to cut a small streamer, but am not sure how to attach it to the motor to get it to deploy when the motor ejects.

    Any input or advise is greatly appreciated. I know these are cheap and easy to build, so losing one or eight isn't a huge deal, but my 4 year old was pretty sad when his baby rocket "didn't come back"

  2. #2
    Join Date
    19th January 2009
    Location
    Washington D.C.
    Posts
    3,607
    Quote Originally Posted by onesureshot View Post
    I have a copy / pdf of the Star Trooper instructions showing rear ejection with a streamer and was wondering if it is possible to do something similar in say a Quark or 220 Swift? I would like to put a streamer on a couple of these so they will be easier to find / track during recovery.

    I had thought of using some Kevlar thread, crimped onto a small split shot lead sinker, then drop that into the nose cone with a little epoxy to hold it in place. I have some 1/4" and 1/2" teflon plumbers tape to cut a small streamer, but am not sure how to attach it to the motor to get it to deploy when the motor ejects.

    Any input or advise is greatly appreciated. I know these are cheap and easy to build, so losing one or eight isn't a huge deal, but my 4 year old was pretty sad when his baby rocket "didn't come back"
    IIRC the Swift and Quark are BT-5 size birds. If that's the case it's a little more difficult do build an ejection pod. but it's pretty easy to do if you want to retro fit it for Micro Maxx motor flights.

    To use 13mm motors your Kevlar shock line would have to be made into a sort of Lariet Loop Anchor around the motor tied outside the body with the Teflon Plumbers tape streamer or Better yet slightly thicker military grade PTFE Thread Sealing tape from McMaster Carr tied just above the motor when inserted. The Kevlar should be at least 90lb test, It'll deform the body tube just a bit when inserted with the motor but will pop free at ejection.

    To make a MMX rear ejection pod you'll need a 1" piece of T2+ body tube (.281" OD) and two BT-5 or T5-to T2+ centering rings. Same 90lb kevlar x 36" shockline and same 3/4" or wider Plumbers tape or PTFE Thread sealing tape Streamer. Anchor the kevlar to the nosecone as usual. make up the pod as shown in the pics below. These little BT-5 motors get 75 to 100 feet on a single MMX-II motor. It's a great little conversion.

    Don't have any photos of the rear ejection 13mm motor models as they are usually lost on the first fight sorry.
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    Keep em Flyin Micronzied
    John
    Mrcluster/Micromeister
    Nar-15731
    Co-moderator MicroMaxRockets yahoo group.
    http://groups.yahoo.com/group/MicroMaxRockets/

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