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  1. #31
    Join Date
    30th January 2016
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    US > OK > NE
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    A-G in a souped up XL should be completely possible, but you'd need a great tracker.


  2. #32
    Join Date
    15th October 2016
    Location
    Huntsville AL
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    1,126
    Quote Originally Posted by dhbarr View Post
    A-G in a souped up XL should be completely possible, but you'd need a great tracker.
    I just don't see an A being able to lift it. It struggled on the Stratocruiser


  3. #33
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    30th January 2016
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    US > OK > NE
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    Stock XL masses right at a Newton....

  4. #34
    Join Date
    15th October 2016
    Location
    Huntsville AL
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    1,126
    Before I keep talking: Have you flown a Sprint XL on an A successfully?

    If not, (and without sim results) I'm imagining it struggling up on an A8, and maaaayybe popping the chute in time to save it.

  5. #35
    Join Date
    30th January 2016
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    No, I haven't done this particular flight myself.

    Yup, it'd barely get up there, 50ft or so and the first 5 or so would need to be rod.

    I'm definitely not saying it's a -good- idea, just that A-G is -possible-.

  6. #36
    Join Date
    19th February 2017
    Location
    The world, probably
    Posts
    63
    One thing to watch out for with an A8 is that if you look at the thrustcurve, it's actually more of an A3... That's why it sometimes has trouble lifting relatively light rockets. It's basically a B4 with a shorter burn time. There's some reason for this, I think there was a change in manufacturing but they wanted to use familiar names.
    Click image for larger version. 

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    crmrc.org

  7. #37
    Join Date
    15th October 2016
    Location
    Huntsville AL
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    1,126
    I want to say its a holdover from A.8 as in .8 lbs.

    Think I heard that somewhere, but this is rocketry. A lot of things get heard.


    So.....has that D flown yet?

  8. #38
    Join Date
    14th October 2010
    Location
    Middle TN
    Posts
    689
    The early metric A8s were actually A8s, in the 1968 Estes catalog they also introduced the A5 in 2 and 4 second delays. The A5s were last listed in the 1972 catalog. I am not when they changed the nozzles on the A8, I think that happened in the late 1980s but definitely by 1991. The yellow igniter plugs fit the nozzles of those A8s perfectly and the igniter plugs were first used in 1992.
    'Til next time,

    Mike Toelle

    NAR 31692 L1

    SAM 0373

  9. #39
    Join Date
    5th December 2013
    Location
    MD
    Posts
    6,196
    Quote Originally Posted by Nytrunner View Post
    I want to say its a holdover from A.8 as in .8 lbs.

    Think I heard that somewhere, but this is rocketry. A lot of things get heard.


    So.....has that D flown yet?
    One week and counting ....
    John S. ---- NAR #96911 ---- TRA #15253 ---- MDRA #067 ---- BARC #028
    L1, 3/15/14: Aerotech Sumo, CTI H133BS
    L2, 6/21/14: Giant Leap Vertical Assault, CTI J240RL
    L3, 3/12/16: MAC Performance Radial Flyer, CTI M1101WH
    Altitude: 13,028', L3 flight; Speed: Mach ???, L3 flight

  10. #40
    Join Date
    18th January 2009
    Location
    Virginia - Central
    Posts
    3,804
    Quote Originally Posted by Bat-mite View Post
    Yes, that's right. My first D.

    I have flown Micro Maxx, A, B, C, E, F, G, H, I, J, K, L, M, and N impulse. But never a D. I have never had a 24mm MMT; so I've flown C6 and E9, E16, etc., but no D.

    I just finished building two New Way Spacemodels Higgs Farm kits, graciously donated to me by Tom C. My kids will drag them on C11-3, and then I will put a D12-5 in one of them and complete my journey.

    Only O will be left after that.
    Pictures...or we won't believe it. LOL

    (I remember at the end of the day when Bob U. had a little Estes rocket on the big away cell - and they called for everyone to stand up for a heads up launch. Hilarious.)

    Last edited by MaxQ; 13th August 2017 at 02:45 AM.
    We got two categories of pilots around here. We got your prime pilots that get all the hot planes, and we got your pud-knockers who DREAM about getting the hot planes.
    Now what are you two pud-knockers gonna have?... Huh?
    Pancho Barnes-
    The Right Stuff
    http://www.mwavs.com/0053148414/M4RS...udknockers.m4r

    Tripoli #2747

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