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:
    19,944
    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:
    44,059
    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:
    5,738
    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:
    18,419
    Wayco
    Jun 1, 2013
  5. JLebow

    Rocket Ship 27: An L3 Build Thread

    JLebow, Nov 25, 2019
    Replies:
    25
    Views:
    1,576
    Ez2cDave
    Jan 18, 2020 at 5:51 PM
  6. rocketcharlie

    Reloadable casings

    rocketcharlie, Dec 14, 2019 ... 2
    Replies:
    57
    Views:
    2,845
    Onebadhawk
    Jan 18, 2020 at 5:34 PM
  7. Vdutel

    Level 1 Cert Rocket Choices

    Vdutel, Jan 16, 2020 at 5:19 PM ... 2
    Replies:
    35
    Views:
    601
    grouch
    Jan 18, 2020 at 4:43 PM
  8. Arsenal78

    Full Scale ARCAS

    Arsenal78, Jan 13, 2020 at 4:31 AM
    Replies:
    16
    Views:
    522
    Arsenal78
    Jan 18, 2020 at 4:17 AM
  9. AfterBurners

    Nose weight Question?

    AfterBurners, Dec 30, 2019
    Replies:
    24
    Views:
    769
    AfterBurners
    Jan 17, 2020 at 10:21 PM
  10. Bat-mite

    My quest for an O motor launch.

    Bat-mite, Apr 17, 2019 ... 7 8 9
    Replies:
    242
    Views:
    16,116
    Wayco
    Jan 17, 2020 at 9:52 PM
  11. BTharpe

    My first high power build

    BTharpe, Jan 13, 2020 at 5:26 AM
    Replies:
    5
    Views:
    303
    BTharpe
    Jan 17, 2020 at 8:17 PM
  12. J Blatz

    LOC oldies coming back?

    J Blatz, Jan 13, 2020 at 12:08 AM ... 2
    Replies:
    39
    Views:
    1,080
    crossfire
    Jan 17, 2020 at 6:43 PM
  13. Hooked On Rockets

    4" Madcow Black Friday AGM 33 Pike "Overbuild" Thread

    Hooked On Rockets, Dec 28, 2019
    Replies:
    10
    Views:
    567
    Forever_Metal
    Jan 17, 2020 at 5:12 PM
  14. downhill_D

    Hyperloc 835 Build (updated kit) - Level 2 kit

    downhill_D, Jan 7, 2020
    Replies:
    9
    Views:
    352
    downhill_D
    Jan 17, 2020 at 2:17 PM
  15. Steven88

    Loc Precision BIG NUKE 3E Kit

    Steven88, Sep 9, 2019 ... 4 5 6
    Replies:
    157
    Views:
    6,879
    jbsommerfeldt
    Jan 17, 2020 at 2:47 AM
  16. rickster75

    how accurate is the recovery phase of a rocket on rocksim?

    rickster75, Jan 16, 2020 at 1:12 PM
    Replies:
    8
    Views:
    170
    warnerr
    Jan 16, 2020 at 11:29 PM
  17. BruceLee

    UP Aerospace SL 14 Launch Video from 11/19

    BruceLee, Jan 16, 2020 at 8:49 PM
    Replies:
    0
    Views:
    108
    BruceLee
    Jan 16, 2020 at 8:49 PM
  18. Rocketjunkie

    Variable Drag Project

    Rocketjunkie, Jan 14, 2020 at 1:51 AM
    Replies:
    14
    Views:
    385
    Rocketjunkie
    Jan 16, 2020 at 5:48 AM
  19. ECayemberg

    MAC Performance 4" Bolt Two Stage Build

    ECayemberg, Jan 2, 2020
    Replies:
    23
    Views:
    1,028
    Bobfly
    Jan 16, 2020 at 1:11 AM
  20. micro
    Redirect

    Scale Staged Black Brant XI 1:7.5

    micro, Sep 16, 2019 ... 2 3
    Replies:
    –
    Views:
    –
    N/A
  21. rickster75

    Is it safe to fly the Loc IV to low altitudes of around 100-200 feet to test?

    rickster75, Jan 7, 2020 ... 2
    Replies:
    39
    Views:
    1,353
    mbeels
    Jan 15, 2020 at 10:57 PM
  22. TimothyAReed

    LOC Precision AMRAAM AIM 120C Build Thread

    TimothyAReed, Dec 21, 2019 ... 2
    Replies:
    45
    Views:
    1,569
    TimothyAReed
    Jan 15, 2020 at 1:05 AM
  23. NateB

    Punisher 3 for Level 1

    NateB, Jan 13, 2020 at 9:34 AM
    Replies:
    7
    Views:
    280
    NateB
    Jan 15, 2020 at 12:08 AM
  24. Mark Avrech

    Rounding or Knife Edging G12 Fins

    Mark Avrech, Jan 11, 2020
    Replies:
    5
    Views:
    300
    Mugs914
    Jan 14, 2020 at 7:53 PM
  25. Steve Shannon

    Tripoli prohibition on the use of 3D printed fin cans for L3 certification

    Steve Shannon, Jun 22, 2019 ... 6 7 8
    Replies:
    218
    Views:
    9,335
    jbsommerfeldt
    Jan 14, 2020 at 5:30 PM
  26. rocketcharlie

    4F black powder

    rocketcharlie, Mar 16, 2014 ... 2 3 4
    Replies:
    108
    Views:
    28,443
    Ez2cDave
    Jan 14, 2020 at 3:43 PM
  27. g.pitts

    4" Electronics Bay Design for my Level 2 Cert Flight

    g.pitts, Jan 7, 2020
    Replies:
    11
    Views:
    429
    g.pitts
    Jan 13, 2020 at 11:07 PM
  28. spigalau

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

    spigalau, Jun 22, 2019 ... 2
    Replies:
    51
    Views:
    3,271
    g.pitts
    Jan 13, 2020 at 5:48 PM
  29. Ravenex

    Epic Shread of a 21ft Mean Machine

    Ravenex, Nov 28, 2019
    Replies:
    18
    Views:
    1,542
    PhlAsh
    Jan 13, 2020 at 5:02 PM
  30. TXWalker

    AMW Pro38 Reloads

    TXWalker, Jan 12, 2020 at 4:20 PM
    Replies:
    10
    Views:
    338
    ECayemberg
    Jan 13, 2020 at 12:31 PM
  31. jbsommerfeldt

    Wildman Eagle Claw mini

    jbsommerfeldt, Jan 13, 2020 at 12:58 AM
    Replies:
    1
    Views:
    164
    Theory
    Jan 13, 2020 at 11:54 AM
  32. gna

    Level 1 with Leviathan

    gna, Jan 7, 2020
    Replies:
    20
    Views:
    522
    Ramjet
    Jan 12, 2020 at 11:15 PM
  33. jmmome

    "Delta Super Heavy Lander" Project

    jmmome, Jan 12, 2020 at 11:01 PM
    Replies:
    0
    Views:
    104
    jmmome
    Jan 12, 2020 at 11:01 PM
  34. Brian-Tampa

    Altimeter vent holes

    Brian-Tampa, Jan 12, 2020 at 5:29 PM
    Replies:
    8
    Views:
    222
    BEC
    Jan 12, 2020 at 8:47 PM
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