High Power Rocketry (HPR)

Rockets using motors from H impulse upwards.

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  1. bobkrech
    Sticky

    L3 Certification Documentation Links - No Third Party Comments Please

    bobkrech, Nov 24, 2016 ... 2
    Replies:
    47
    Views:
    19,483
    cwbullet
    Oct 24, 2019
  2. flynfrog
    Sticky

    Properly bonding composites and what your government doesn't want you to know.

    flynfrog, Sep 15, 2013 ... 2 3
    Replies:
    88
    Views:
    43,571
    slothead
    Mar 10, 2019
  3. bobkrech
    Locked Sticky

    Discussions of Amateur Rocket Motors belong in the Reseach Forum

    bobkrech, Sep 13, 2015
    Replies:
    0
    Views:
    5,662
    bobkrech
    Sep 13, 2015
  4. Green Jello
    Sticky

    How To Build A "Stock" 3IN DARKSTAR CJ Step By Step

    Green Jello, May 30, 2013
    Replies:
    1
    Views:
    18,162
    Wayco
    Jun 1, 2013
  5. K'Tesh

    A few HPR questions...

    K'Tesh, Nov 19, 2019 ... 2
    Replies:
    32
    Views:
    1,135
    Andrew_ASC
    Dec 14, 2019 at 5:52 AM
  6. JField31

    High Altitude Launch Sites in Tri-State Area

    JField31, Dec 10, 2019 at 2:06 PM
    Replies:
    23
    Views:
    971
    Steve Shannon
    Dec 14, 2019 at 4:04 AM
  7. blackjack2564

    CJ's "HOW TO BUILD A DARKSTAR 3 OR ANY GLASS KIT BUILD" STARTS

    blackjack2564, Dec 6, 2012 ... 13 14 15
    Replies:
    441
    Views:
    151,881
    richP
    Dec 14, 2019 at 4:02 AM
  8. Wallace

    Optima or Cherokee D Large upscale

    Wallace, Aug 22, 2018 ... 2 3
    Replies:
    80
    Views:
    3,342
    Andrew_ASC
    Dec 14, 2019 at 3:26 AM
  9. Andrew_ASC

    MAC Hyper 54 L2 cert build

    Andrew_ASC, Feb 1, 2019 ... 2
    Replies:
    57
    Views:
    4,114
    Andrew_ASC
    Dec 14, 2019 at 12:09 AM
  10. highflyer1968

    Rocsim file

    highflyer1968, Dec 13, 2019 at 9:19 PM
    Replies:
    0
    Views:
    53
    highflyer1968
    Dec 13, 2019 at 9:19 PM
  11. blackbrandt

    G10 vs G12 tubing?

    blackbrandt, Sep 30, 2012
    Replies:
    16
    Views:
    5,037
    Mike Haberer
    Dec 13, 2019 at 4:21 PM
  12. Gary Liming

    Wildman Lance Beta

    Gary Liming, Nov 30, 2019
    Replies:
    13
    Views:
    796
    Andrew_ASC
    Dec 13, 2019 at 3:20 AM
  13. HyperSonic

    904 Ceramic Adhesive

    HyperSonic, Apr 24, 2017 ... 2
    Replies:
    36
    Views:
    2,792
    Wallace
    Dec 13, 2019 at 1:41 AM
  14. Mike Haberer

    L2 Recovery Options

    Mike Haberer, Nov 25, 2019 ... 2
    Replies:
    45
    Views:
    1,492
    John Taylor
    Dec 13, 2019 at 1:38 AM
  15. micro

    Scale Staged Black Brant XI 1:7.5

    micro, Sep 16, 2019 ... 2 3
    Replies:
    61
    Views:
    3,578
    micro
    Dec 12, 2019 at 5:58 PM
  16. Theory

    Gonna put the ‘HV’ in HV ARCAS

    Theory, Dec 6, 2019
    Replies:
    13
    Views:
    633
    Andrew_ASC
    Dec 12, 2019 at 2:03 PM
  17. Skyreaper11

    29mm Nose Cone Coupler Attachment

    Skyreaper11, Dec 12, 2019 at 2:04 AM
    Replies:
    1
    Views:
    104
    GrouchoDuke
    Dec 12, 2019 at 2:53 AM
  18. jahall4

    ISO a 75mm hardpoint like Giant Leap sells for 38 and 54.

    jahall4, Dec 6, 2019
    Replies:
    29
    Views:
    645
    rharshberger
    Dec 11, 2019 at 5:00 AM
  19. David Schwantz

    More than just stickers!

    David Schwantz, Dec 1, 2019
    Replies:
    8
    Views:
    441
    MikeyDSlagle
    Dec 10, 2019 at 3:32 PM
  20. Ravenex

    LiquidFyre ABM Design Poll

    Ravenex, Dec 10, 2019 at 2:02 AM
    Replies:
    1
    Views:
    164
    rfjustin
    Dec 10, 2019 at 3:27 PM
  21. Bat-mite

    Latest launch video -- 7.5" MegaNuk

    Bat-mite, Dec 9, 2019 at 3:26 PM
    Replies:
    5
    Views:
    299
    Bat-mite
    Dec 10, 2019 at 3:04 PM
  22. DAllen

    PML CoPilot V 2.0 in a 38mm coupler?

    DAllen, Dec 3, 2019
    Replies:
    7
    Views:
    209
    Wallace
    Dec 10, 2019 at 2:53 PM
  23. JoeTekcor

    Patriot Redux build thread

    JoeTekcor, Sep 10, 2019
    Replies:
    16
    Views:
    687
    Andrew_ASC
    Dec 10, 2019 at 10:13 AM
  24. Ravenex

    LiquidFyre ABM

    Ravenex, Dec 1, 2019
    Replies:
    7
    Views:
    437
    Andrew_ASC
    Dec 10, 2019 at 8:54 AM
  25. KenECoyote

    Hangar 11 4" X-15 Build

    KenECoyote, Oct 30, 2015 ... 3 4 5
    Replies:
    127
    Views:
    12,740
    burkefj
    Dec 9, 2019 at 10:37 PM
  26. maxvelocity

    Vaughn Brothers VB Extreme 54 build thread

    maxvelocity, Dec 20, 2013
    Replies:
    26
    Views:
    3,038
    Tankerbell
    Dec 8, 2019 at 12:46 AM
  27. School of Rock'et'

    ISO 8" Tail Cone

    School of Rock'et', Dec 7, 2019
    Replies:
    4
    Views:
    201
    mpitfield
    Dec 7, 2019
  28. spigalau

    Build : MAC Performance - 3" Scorpion XL on 38mm

    spigalau, Jun 22, 2019 ... 2
    Replies:
    48
    Views:
    2,953
    Nick Hutton
    Dec 7, 2019
  29. DAllen

    The Flying Disc Golf Basket of Death and Distruction

    DAllen, Dec 1, 2018 ... 3 4 5
    Replies:
    127
    Views:
    6,276
    DAllen
    Dec 6, 2019
  30. JLebow

    Rocket Ship 27: An L3 Build Thread

    JLebow, Nov 25, 2019
    Replies:
    8
    Views:
    654
    rharshberger
    Dec 4, 2019
  31. Bat-mite

    My quest for an O motor launch.

    Bat-mite, Apr 17, 2019 ... 6 7 8
    Replies:
    232
    Views:
    14,570
    Bat-mite
    Dec 2, 2019
  32. BDB

    Scratch Building a L3-class rocket with outboard motors

    BDB, Nov 30, 2019
    Replies:
    16
    Views:
    554
    BDB
    Dec 2, 2019
  33. Ravenex

    Epic Shread of a 21ft Mean Machine

    Ravenex, Nov 28, 2019
    Replies:
    13
    Views:
    1,096
    crossfire
    Dec 1, 2019
  34. RCGuyGR

    AMW Fibermax Rocksim file

    RCGuyGR, Nov 30, 2019
    Replies:
    2
    Views:
    214
    RCGuyGR
    Dec 1, 2019
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