Powerboats

Discuss production and custom powerboats and powerboat design.

  1. Propulsion (link)

    Surface Drives, Jet Drives, Outboards, Sterndrives, Pod Drives, Inboards
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  1. leaky

    How Torque, HP, and max RPM relate to speed/cruise? How do Gas/Diesel compare?

    leaky, Oct 20, 2015 ... 3 4 5
    Replies:
    67
    Views:
    21,823
    Barry
    Nov 11, 2015
  2. LSC

    Identification

    LSC, Nov 10, 2015 ... 2
    Replies:
    22
    Views:
    4,068
    LSC
    Nov 11, 2015
  3. Guest

    Banana Boats????help

    Guest, Sep 17, 2001
    Replies:
    6
    Views:
    5,690
    gonzo
    Nov 6, 2015
  4. Steve P

    Aluminum boat builders

    Steve P, Nov 5, 2015
    Replies:
    0
    Views:
    2,380
    Steve P
    Nov 5, 2015
  5. JR-Shine

    new design - 25' deep v center console

    JR-Shine, Aug 17, 2015
    Replies:
    11
    Views:
    7,521
    JR-Shine
    Nov 5, 2015
  6. hilmil

    Additional Permanent fuel storage in tender garage

    hilmil, Oct 5, 2015
    Replies:
    6
    Views:
    3,726
    hilmil
    Oct 5, 2015
  7. Boatwiser

    Water Ingestion Into I/o Merc Engine

    Boatwiser, Sep 22, 2015 ... 2 3 4
    Replies:
    50
    Views:
    14,412
    tom kane
    Oct 3, 2015
  8. rasorinc
    Locked

    John Deere ENGINES made it China

    rasorinc, Sep 12, 2015 ... 2 3 4
    Replies:
    50
    Views:
    9,242
    Boat Design Net Moderator
    Sep 25, 2015
  9. sdowney717

    bolt metal plate to boat hull to extend LWL

    sdowney717, Aug 24, 2015
    Replies:
    5
    Views:
    4,168
    Easy Rider
    Sep 20, 2015
  10. sdowney717

    Onan MCCK thermostat

    sdowney717, Sep 17, 2015
    Replies:
    0
    Views:
    2,112
    sdowney717
    Sep 17, 2015
  11. Jim Cullen

    banana 24

    Jim Cullen, Sep 7, 2015
    Replies:
    10
    Views:
    5,759
    Mr Efficiency
    Sep 9, 2015
  12. Boat4ever

    Orlando Clipper information needed

    Boat4ever, Sep 3, 2015
    Replies:
    0
    Views:
    2,574
    Boat4ever
    Sep 3, 2015
  13. smjmitchell

    Transom Angle

    smjmitchell, Aug 31, 2015
    Replies:
    3
    Views:
    8,229
    PAR
    Aug 31, 2015
  14. Hampton Roads

    Handy Billy 21 launch.

    Hampton Roads, Apr 2, 2012
    Replies:
    13
    Views:
    9,740
    Mr Efficiency
    Aug 29, 2015
  15. bluesfan1

    Less than acceptable performance

    bluesfan1, Aug 26, 2015
    Replies:
    10
    Views:
    2,503
    Mr Efficiency
    Aug 29, 2015
  16. sdowney717

    HP calculator for prop size, weight, gear ratio needed

    sdowney717, Aug 24, 2015
    Replies:
    4
    Views:
    6,820
    PAR
    Aug 24, 2015
  17. kcallagmy

    Gulf Craft Ambassador 36foot hull dent/warp

    kcallagmy, Aug 20, 2015
    Replies:
    4
    Views:
    2,965
    PAR
    Aug 24, 2015
  18. Damian3716

    small power boat plans and stitch and glue

    Damian3716, Aug 18, 2015
    Replies:
    10
    Views:
    4,840
    Damian3716
    Aug 23, 2015
  19. iceman46

    Diesel gensets

    iceman46, Aug 17, 2015
    Replies:
    5
    Views:
    2,143
    Stumble
    Aug 20, 2015
  20. sneddy

    Orlando Clipper?

    sneddy, Aug 4, 2015
    Replies:
    0
    Views:
    2,061
    sneddy
    Aug 4, 2015
  21. mlc0341

    1989 OMC cobra 5.8L help

    mlc0341, Jul 29, 2015
    Replies:
    6
    Views:
    2,845
    mlc0341
    Jul 31, 2015
  22. sdowney717

    I need to change my shaft hub coupling

    sdowney717, Jul 21, 2015
    Replies:
    6
    Views:
    2,659
    sdowney717
    Jul 23, 2015
  23. Sepwinf

    Mainship trawler 400

    Sepwinf, Jul 18, 2015
    Replies:
    1
    Views:
    3,197
    FAST FRED
    Jul 19, 2015
  24. turfmanbrad

    Sea Ray vs Monterey comparison

    turfmanbrad, May 31, 2015
    Replies:
    9
    Views:
    37,969
    Pjitty
    Jul 18, 2015
  25. donzi152

    merc 120 jet drive slow moving

    donzi152, Jul 14, 2015
    Replies:
    1
    Views:
    2,282
    Kailani
    Jul 16, 2015
  26. sdowney717

    Horsepower limit for 1 3/8 SS shafts?

    sdowney717, Jul 11, 2015
    Replies:
    11
    Views:
    5,398
    rxcomposite
    Jul 13, 2015
  27. djaus

    Is this a Bertram?

    djaus, Jul 10, 2015
    Replies:
    6
    Views:
    4,534
    whitepointer23
    Jul 11, 2015
  28. rasorinc

    help me ID a boat manufacturer

    rasorinc, Feb 22, 2015
    Replies:
    3
    Views:
    2,435
    rasorinc
    Jul 7, 2015
  29. Shorte5961

    What the heck is it?

    Shorte5961, Jan 23, 2014 ... 2
    Replies:
    16
    Views:
    5,234
    Easy Rider
    Jul 2, 2015
  30. koentjedemoni

    sunseeker camargue 46

    koentjedemoni, Jun 21, 2015
    Replies:
    1
    Views:
    3,362
    Grey Ghost
    Jun 27, 2015
  31. LarsRonning

    Outboard engine position on power cat

    LarsRonning, Jun 23, 2015 ... 2
    Replies:
    16
    Views:
    12,423
    LarsRonning
    Jun 25, 2015
  32. whbjr24

    1989 Ski Supreme Wiring

    whbjr24, Jun 12, 2015
    Replies:
    3
    Views:
    3,646
    whbjr24
    Jun 23, 2015
  33. JakubT

    Displacement hull for river / classic backdecker

    JakubT, Jun 23, 2015
    Replies:
    0
    Views:
    2,537
    JakubT
    Jun 23, 2015
  34. redneckincanada

    Mercruiser 3.0L Alpha 1 Gen 2 does this strange hiccup every minute or 2 mins...

    redneckincanada, Jun 19, 2015
    Replies:
    1
    Views:
    3,334
    gonzo
    Jun 19, 2015
  35. Donal123B

    Speedboat build from empty hull

    Donal123B, Jun 17, 2015
    Replies:
    2
    Views:
    2,651
    PAR
    Jun 18, 2015
  36. thailandboy2004

    thai boat plans needed..

    thailandboy2004, Nov 27, 2007 ... 5 6 7
    Replies:
    100
    Views:
    84,819
    brian eiland
    Jun 16, 2015
  37. Rusty Anchor

    Revel Craft Revelaire 1960's 27ft

    Rusty Anchor, Jun 12, 2015
    Replies:
    0
    Views:
    2,719
    Rusty Anchor
    Jun 12, 2015
  38. sdowney717

    sealing exhaust steel surface with Permatex Orange gasket maker High heat version

    sdowney717, May 24, 2015
    Replies:
    1
    Views:
    6,320
    sdowney717
    Jun 6, 2015
  39. LotawanaRoc

    1955 Delta (rare?)

    LotawanaRoc, Jun 4, 2015
    Replies:
    1
    Views:
    2,051
    LotawanaRoc
    Jun 4, 2015
  40. sdowney717

    Aluminum trim tabs from 1/4 inch plate?

    sdowney717, May 25, 2015
    Replies:
    14
    Views:
    7,978
    sdowney717
    May 31, 2015
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