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


  2. #32
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    15th October 2016
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    Huntsville AL
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    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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    Stock XL masses right at a Newton....

  4. #34
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    15th October 2016
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    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
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    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
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    291
    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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    NAR #104043

    crmrc.org

  7. #37
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    15th October 2016
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    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
    693
    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
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    MD
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    6,661
    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
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    3,845
    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

  11. #41
    Join Date
    27th December 2014
    Location
    Seattle, WA
    Posts
    773
    Quote Originally Posted by Nytrunner View Post
    And I just got a 5gr Pro 38 case for I's!
    You can get baby J's in the 5G 38mm case. The pink is a pretty sweet motor for an L2.

    Quote Originally Posted by Gary Byrum View Post
    I have a favorite I like using those 18 mm D's in, but unlike the standard 18mm, these get really hot. I've charred the inside of a BT 60 airframe really quickly and burnt the shock cord out twice. I recommend a CA treatment inside your airframe and heavy duty Kevlar.
    I'm impressed you got the rocket back from D21 flights often enough to burn out the airframe! My sole D21 flight was on a Wizard that I wasn't really expecting to get back. I did see it descending under streamer far, far away.
    NAR L1 "Cheeto Dust", scratch 54mm, H54R (before it became a G54), Mansfield, WA
    L2 "Arc Light", Madcow 2.6" Arcas, J285CL, Mansfield, WA, recovery by snowshoe

  12. #42
    Join Date
    4th August 2011
    Location
    Lincolnton NC
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    5,125
    Quote Originally Posted by boatgeek View Post
    I'm impressed you got the rocket back from D21 flights often enough to burn out the airframe! My sole D21 flight was on a Wizard that I wasn't really expecting to get back. I did see it descending under streamer far, far away.
    I have one rocket that I use them in (presently) and it a very draggy design. Flies like a beast on these composite D's and always get it back. If it were a more streamlined design, I'd prolly be kissing it goodbye.

    Flies great on 18mm D-10's & 21's. It a Goonie version of my design, Fiddle Faddle.

    Click image for larger version. 

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    Thinking outside the box is normal for me. Went inside the box once and got claustrophobic.
    Can't never did!
    Inventions weren't created by skeptics.
    There's a bright side to every screwed up week.


  13. #43
    Join Date
    5th December 2013
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    MD
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    Quote Originally Posted by MaxQ View Post
    (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.)
    That's funny. Sorry I missed it.

    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

  14. #44
    Join Date
    15th October 2016
    Location
    Huntsville AL
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    1,581
    Quote Originally Posted by boatgeek View Post
    You can get baby J's in the 5G 38mm case. The pink is a pretty sweet motor for an L2.



    I'm impressed you got the rocket back from D21 flights often enough to burn out the airframe! My sole D21 flight was on a Wizard that I wasn't really expecting to get back. I did see it descending under streamer far, far away.
    If anyone has one in stock, I may try that One Day. No L2 motor shall be flown until Long Tom takes to the sky!

    Best times with 18mm D's are in BT-60 rockets with a chute release. B)
    That's the only reason I still have my patriot and Redstone

  15. #45
    Join Date
    5th December 2013
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    MD
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    Success!! Success!! I have now flown the mighty D! I can claim every impulse from A thru N.

    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

  16. #46
    Join Date
    18th January 2009
    Location
    Virginia - Central
    Posts
    3,845
    Quote Originally Posted by Bat-mite View Post
    Success!! Success!! I have now flown the mighty D! I can claim every impulse from A thru N.
    Pictures!

    ...or it didn't happen.

    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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