Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    429
    Messages:
    4,826
    Latest: Need help with propulsion calculations BlueBell, Oct 18, 2018 at 1:20 PM
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  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    162
    Messages:
    2,558
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    421
    Messages:
    3,938
    Latest: PP65 upgrade Michael Denner, Aug 30, 2018
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  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    931
    Messages:
    8,630
    RSS
  5. Sterndrives

    Stern drive lower and upper units, transom and gimbal assemblies, steering, and trim pumps. Mercruiser (Alpha One, Alpha One Generation II, Alpha SS, Bravo One, Bravo Two, Bravo Three, Bravo XR Sportmaster, TRS, Speed Master), IMCO, ILMOR, Konrad, OMC, Volvo Penta
    Discussions:
    529
    Messages:
    3,607
    RSS
  6. Pod Drives

    Volvo IPS, ZF, CMD Zeus, and other pod-drive systems
    Discussions:
    25
    Messages:
    260
    RSS
  7. Inboards

    Inboard and Vee-drive hardware: struts, stuffing boxes, transmissions, coolers
    Discussions:
    508
    Messages:
    4,617
    Latest: Your Stern Tube Assemblies Salmoneyes, Oct 20, 2018 at 6:51 PM
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    632
    Messages:
    7,935
    Latest: Caterpillar 3304 Lepke, Sep 27, 2018
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  9. Gas Engines

    Gasoline Engines
    Discussions:
    386
    Messages:
    4,241
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    35
    Messages:
    663
    Latest: Solar charged small boat evaluation alan craig, Oct 17, 2018 at 1:47 PM
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  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    207
    Messages:
    5,232
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    268
    Messages:
    5,427
    RSS
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  18. Archangl7
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  20. Carter Beall
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  21. kschung
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  22. Leveboat
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  23. ATMHC
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  24. Angle X
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  25. valvebounce
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  28. Liopleurodon
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  29. DCockey
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  30. 1J1
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  31. Random_user
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  32. brian eiland
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  33. bcobbett
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  34. Timetogo
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  35. dwicejama
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  36. bluedolfin
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  37. JasonCatt
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  38. Angle X
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  39. mtht110
    Replies:
    4
    Views:
    1,420
  40. captdon65
    Replies:
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    Views:
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