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Thread: An Interesting Idea

  1. #1
    Join Date
    18th July 2009
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    An Interesting Idea

    I was thinking about a very interesting drag race idea for small groups. Everyone buys a motor in the same casing size (or vendors provide one for a fee) for example Pro 38 3 grain, then everybody takes the markings off of the reload leaving only the delay time of the reload in question (or write it on the side) throw all of them into a bag so nobody knows which is which. Everybody picks one, then you set up your rockets (lets say same kits like a jr from wildman) and you hold a drag race. First off the pad, First down, highest, etc. I think it sounds like fun, does anyone else?
    Tom
    NAR #83620 L2 soon to be L3

  2. #2
    Join Date
    2nd July 2012
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    Quote Originally Posted by Yoehahn View Post
    I was thinking about a very interesting drag race idea for small groups. Everyone buys a motor in the same casing size (or vendors provide one for a fee) for example Pro 38 3 grain, then everybody takes the markings off of the reload leaving only the delay time of the reload in question (or write it on the side) throw all of them into a bag so nobody knows which is which. Everybody picks one, then you set up your rockets (lets say same kits like a jr from wildman) and you hold a drag race. First off the pad, First down, highest, etc. I think it sounds like fun, does anyone else?
    Would you use high powered engines? It does sound fun though.
    The onboard Cameraman, Channel: http://www.youtube.com/tomosephxbox
    R.I.P. Neil Armstrong

  3. #3
    Join Date
    13th February 2012
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    2,677
    You should require electronic ejection. That way people wouldn't get to peek inside and find out what motor it is, and account for differences in delay times required.
    2013 impulse burned: 5205.1 Ns
    2013 impulse lined up to burn: ~56,445 Ns

  4. #4
    Join Date
    18th March 2012
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    Apex, NC.
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    The RSO should know what the motors are so you don't burn an E-75 in a 15 pound rocket.
    Matt Tripoli Junior Member# 14257

    2013 motors:
    AT 38-360 H178DM (283ns)
    CTI Pro-29 3 Grain 138G106-14A (138ns)
    CTI Pro-29 1 Grain 55F29-12A (55ns)
    Estes C6-5 (9ns)
    Estes B4-2 (4ns)
    Total Newton Seconds for 2013: 489ns
    2.4% of N5800
    Largest Motor flown: Aerotech H178DM (38-360)

  5. #5
    Join Date
    18th July 2009
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    "Central" NJ
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    Well you can usually figure if something is safe by diameter and grains. planning on doing this with three wildman jr line kits and 3 Pro38 3G reloads.
    Tom
    NAR #83620 L2 soon to be L3

  6. #6
    Join Date
    13th February 2012
    Location
    New England
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    15
    Quote Originally Posted by Yoehahn View Post
    Well you can usually figure if something is safe by diameter and grains.
    which sets total impulse. the thrust would still make a difference... i.e. 5 x thrust to weight limit might be exceeded unintentionally. i.e. J270 vs K700 use the same case, but would have a completely different flight profile with a 20 pound rocket.

  7. #7
    Join Date
    24th January 2009
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    E75 in 15 lb rocket - that would be fun.
    -----------------------
    Chuck Haislip
    NAR/Tripoli Level 3

    Level 1 - LOC Minie Magg; Level 2 - PR Broken Arrow;
    Level 3 - 10 inch Nike Smoke
    Ns for Year: 0 on hiatus serving our GREAT country in Kuwait
    My rockets usually fly naked. If they survive, they earn their paint.

    Come fly with ROSCO or ICBM in Orangeburg SC => http://rocketrysouthcarolina.com

  8. #8
    Join Date
    18th March 2012
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    Oregon City. OR
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    1,118
    I like the idea. Selecting Pro38 2 grain would give you from H100 through H400 with Skids, Imax, Vmax, White Thunder, etc.. all represented.
    Have no fear, Chaos is here.
    Dan dan Daaaah
    L1 - RalphCo Crayon H225 -::- L2 - ARR Basic Blues 3" J270
    TRA 13815 - NAR 87999
    Now playing with clusters and staging!

  9. #9
    Join Date
    23rd January 2009
    Posts
    895
    2 grain would be enough - I fly mine on a EX H 2 grain that sims out to 100 - and I get between 997 and 1008 feet. Like the idea of electronic ejection - so you couldn't peek. Might even have a third party load all the motors to prevent any peaking!
    L1 4/09 LOC Vulconite "Morning After Bad Thai Food"
    L2 7/09 Wildman JR "A Little Wild"
    L3 9/10 Ultimate Wildman "Wildman CT"

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