High Power Rocketry (HPR)

Rockets using motors from H impulse upwards.

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  1. flynfrog
    Sticky

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

    flynfrog, Sep 15, 2013 ... 2 3
    Replies:
    88
    Views:
    40,336
    slothead
    Mar 10, 2019
  2. bobkrech
    Sticky

    L3 Certification Documentation Links - No Third Party Comments Please

    bobkrech, Nov 24, 2016 ... 2
    Replies:
    43
    Views:
    13,921
    krislhull
    Jan 3, 2019
  3. bobkrech
    Locked Sticky

    Discussions of Amateur Rocket Motors belong in the Reseach Forum

    bobkrech, Sep 13, 2015
    Replies:
    0
    Views:
    5,017
    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:
    15,992
    Wayco
    Jun 1, 2013
  5. Andrew_ASC

    X1.4: A 24mm MD prototype story.

    Andrew_ASC, Aug 17, 2018 ... 18 19 20
    Replies:
    583
    Views:
    25,221
    Eric
    Mar 24, 2019 at 6:17 AM
  6. Hakan Demir

    Parachute drag coefficient on openrocket

    Hakan Demir, Mar 23, 2019 at 8:37 AM
    Replies:
    8
    Views:
    120
    SpaceManMat
    Mar 24, 2019 at 6:04 AM
  7. rharshberger

    Rich's GLR Nuclear Sledgehammer...continuation of original build thread

    rharshberger, Dec 29, 2018 ... 2 3
    Replies:
    84
    Views:
    2,818
    krislhull
    Mar 24, 2019 at 3:55 AM
  8. jmmome

    Calculating Force Necessary for Stage Separation?

    jmmome, Mar 23, 2019 at 4:24 PM
    Replies:
    6
    Views:
    117
    jmmome
    Mar 24, 2019 at 2:13 AM
  9. Rail Dawg

    An "R"-powered rocket build

    Rail Dawg, Nov 30, 2018 ... 42 43 44
    Replies:
    1,291
    Views:
    51,287
    Ez2cDave
    Mar 23, 2019 at 9:32 PM
  10. jmuck78

    LOC-VII Build Thread

    jmuck78, Jan 12, 2019 ... 2 3 4
    Replies:
    90
    Views:
    2,961
    Wallace
    Mar 23, 2019 at 8:17 PM
  11. redheadRocketee

    Attaching PEM nuts to Fiberglass

    redheadRocketee, Mar 21, 2019 at 6:40 PM
    Replies:
    10
    Views:
    288
    dr wogz
    Mar 23, 2019 at 8:13 PM
  12. Andy Greene

    L-2 Build Thread / MadCow Rogue

    Andy Greene, Mar 22, 2019 at 2:12 AM
    Replies:
    5
    Views:
    161
    Tim51
    Mar 23, 2019 at 6:35 PM
  13. jmuck78

    LOC Hawk 7.5'' Build Thread

    jmuck78, Jan 2, 2019 ... 2 3
    Replies:
    63
    Views:
    2,609
    jmuck78
    Mar 23, 2019 at 6:20 PM
  14. Ben Martin

    "Starship" - L3 Build Thread

    Ben Martin, Mar 4, 2019 ... 2
    Replies:
    41
    Views:
    1,219
    Ben Martin
    Mar 23, 2019 at 5:16 AM
  15. mbeels

    Build Thread: Pemberton Technologies King Kraken for Level 1 Cert

    mbeels, Feb 9, 2019 ... 2
    Replies:
    56
    Views:
    1,719
    mbeels
    Mar 23, 2019 at 2:06 AM
  16. ECayemberg

    Loc Custom 7.675" Saturn V

    ECayemberg, Mar 11, 2019 ... 2
    Replies:
    35
    Views:
    1,584
    blackjack2564
    Mar 22, 2019 at 10:41 PM
  17. Steven88

    Pressure relief hole

    Steven88, Mar 21, 2019 at 2:13 AM
    Replies:
    17
    Views:
    436
    Bat-mite
    Mar 22, 2019 at 8:32 PM
  18. Eric

    L3 Practice Phoenix

    Eric, Sep 6, 2017 ... 2
    Replies:
    32
    Views:
    2,248
    Eric
    Mar 22, 2019 at 1:40 AM
  19. Steven88

    Ground test

    Steven88, Mar 20, 2019 at 2:49 AM
    Replies:
    9
    Views:
    261
    grouch
    Mar 21, 2019 at 2:47 PM
  20. downhill_D

    Caliber ISP - Level 2 build

    downhill_D, Feb 2, 2019 ... 2
    Replies:
    38
    Views:
    1,103
    downhill_D
    Mar 21, 2019 at 12:38 PM
  21. BayouRat

    How I Build An All Fiberglass Rocket (A Video Tutorial)

    BayouRat, Dec 11, 2018
    Replies:
    13
    Views:
    861
    cwbullet
    Mar 20, 2019 at 11:51 PM
  22. ECayemberg

    Loc Goblin Thread

    ECayemberg, Mar 13, 2018 ... 2 3 4
    Replies:
    114
    Views:
    8,273
    BayouRat
    Mar 20, 2019 at 11:51 PM
  23. krislhull

    L3 Build: LOC 5.5" Sandhawk

    krislhull, Jan 3, 2019 ... 2 3 4
    Replies:
    111
    Views:
    12,272
    Bat-mite
    Mar 20, 2019 at 1:56 PM
  24. Andy Greene

    Make that 2 - L 1 's

    Andy Greene, Mar 19, 2019 at 12:34 AM
    Replies:
    9
    Views:
    221
    slothead
    Mar 20, 2019 at 3:44 AM
  25. maesoph

    Can AeroTech Mirage (Modified) Be Used For L2??

    maesoph, Mar 14, 2019
    Replies:
    19
    Views:
    476
    tomsteve
    Mar 19, 2019 at 5:40 PM
  26. slothead

    L1 cert today!

    slothead, Mar 18, 2019 at 2:29 AM
    Replies:
    24
    Views:
    393
    K'Tesh
    Mar 19, 2019 at 3:50 PM
  27. SpaceBound2020

    Cameras in 4" Fiberglass

    SpaceBound2020, Mar 18, 2019 at 5:22 AM
    Replies:
    13
    Views:
    324
    Ravenex
    Mar 19, 2019 at 3:52 AM
  28. K'Tesh

    Slot And Tab Fins... Why Don't All Vendors Do This?

    K'Tesh, Mar 14, 2019
    Replies:
    23
    Views:
    788
    K'Tesh
    Mar 18, 2019 at 7:30 AM
  29. Donnie

    2.5" Fiberglass L1 Rocket Recommendations

    Donnie, Oct 1, 2018 ... 2 3
    Replies:
    61
    Views:
    2,131
    Donnie
    Mar 18, 2019 at 5:34 AM
  30. K'Tesh

    LOC Precision Body Tubes... Did They Ever...?

    K'Tesh, Mar 16, 2019
    Replies:
    14
    Views:
    391
    K'Tesh
    Mar 18, 2019 at 2:51 AM
  31. mjstech

    6" Diameter Mercury Redstone, was this a kit at one time? Look at the Bell with Astronaut and Tower

    mjstech, Mar 18, 2019 at 12:36 AM
    Replies:
    4
    Views:
    234
    Brent
    Mar 18, 2019 at 2:49 AM
  32. FMarvinS

    RocSim file for RW Rogue 4 inch rocket

    FMarvinS, Apr 6, 2016
    Replies:
    23
    Views:
    937
    Andy Greene
    Mar 18, 2019 at 12:57 AM
  33. PeterP

    LOC 4" Black Brant X L1 Cert Build

    PeterP, Feb 21, 2019 ... 2 3
    Replies:
    73
    Views:
    1,895
    PeterP
    Mar 18, 2019 at 12:07 AM
  34. BWP

    QUESTIONS FROM FIRST TIME HPR BUILD

    BWP, Mar 10, 2019
    Replies:
    20
    Views:
    557
    Nytrunner
    Mar 17, 2019
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