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Thread: fat boy upscale

  1. #1
    Join Date
    18th March 2012
    Location
    Apex, NC.
    Posts
    5,262

    fat boy upscale

    Does anyone have a plan for the estes Fat Boy rocket, and how much (about) would a 7.51 inch diameter upscale weigh?
    Matt Tripoli Junior Member# 14257
    2013 High Power motors:
    AT 38-360 I357T (342 NS)
    CTI Pro-29 6G H399WT (282 NS)
    AT 38-360 H178DM (283ns)
    CTI Pro-29 3 grain H410VM (168NS)
    CTI Pro-29 3G 138G106-14A (138ns)

    Total Newton Seconds for 2013:
    1403 Newton seconds (equal to K1569, or 4,525 Micromaxx motors)

  2. #2
    Join Date
    22nd July 2011
    Location
    Where ever the the boss sends me...
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    1,879
    Not being a butthead, just helping you to help yourself.....

    If you download Open Rocket, ( http://openrocket.sourceforge.net/ ) then get the rocksim file from Rocket Reviews ( http://www.rocketreviews.com/ ), you can figure it out with what ever materials you think you might want to use.

    Also you would have OR for future design ideas...
    Terry

    NAR L1
    Motors burned this year: Yes

  3. #3
    Join Date
    19th May 2011
    Location
    Southern, CA
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    1,815
    You can also download the trial version of ROCKSIM

  4. #4
    Join Date
    22nd July 2011
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    Where ever the the boss sends me...
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    Quote Originally Posted by RocketManDan View Post
    You can also download the trial version of ROCKSIM
    But that only gets you 30 days, correct?

    OR is freeware, so if one is in high school or a starving college student, it makes a better place to start (IMO). Which reminds me, I need to send Sampo a donation when I get paid next.
    Terry

    NAR L1
    Motors burned this year: Yes

  5. #5
    Join Date
    19th May 2011
    Location
    Southern, CA
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    1,815
    Quote Originally Posted by T-Rex View Post
    But that only gets you 30 days, correct?

    OR is freeware, so if one is in high school or a starving college student, it makes a better place to start (IMO). Which reminds me, I need to send Sampo a donation when I get paid next.
    don't know what to tell you...just offering some suggestions

  6. #6
    Join Date
    19th January 2009
    Location
    Connecticut
    Posts
    356

    fat boy upscale

    Depends on what you build it from and how much nose weight you put in. Mine is PR fiberglass tubing and a Scotglas fiberglass NC with a fair amount of ballast in the nose, which in hindsight was overkill. It went 3300' on a K550. I'll throw it on the scales when I get home and let you know what it weight less engine and parachute.
    Larry

  7. #7
    Join Date
    22nd September 2010
    Location
    Tarpon Springs, FL
    Posts
    93
    Mine was heavily built using Flexible phenolic from Red Arrow Hobbies. Fiberglass throughout plus fins....Curtis nosecone....without the motor and noseweight, it weighed 11.5 pounds. ON the AMW M-1350 and the Gorilla Motors M1665, it got up to 8400 feet.

    Terry
    TRA 11835 L3
    NAR 68877 L2 (lapsed)

    This offer not good after curfew in sectors R or N.

  8. #8
    Join Date
    21st March 2011
    Location
    central America
    Posts
    931
    Quote Originally Posted by T-Rex View Post
    ...get the rocksim file from Rocket Reviews ( http://www.rocketreviews.com/ )
    Thanks for posting this reference. I was wondering if something like this existed, and if not, why. It would be a real boon to see a sim file for each entry in JimZ's plan archive.
    [ This Space For Rent ]
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