Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    459
    Messages:
    5,095
    Latest: Ka4-55 with 19A Duct Model jehardiman, Nov 17, 2019 at 12:12 AM
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  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    165
    Messages:
    2,585
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    432
    Messages:
    4,063
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    960
    Messages:
    8,885
    Latest: Auxiliary Outboard for 32 ft trawler Ike, Nov 14, 2019 at 9:46 PM
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  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:
    531
    Messages:
    3,629
    Latest: Missing Oil Pressure Sender? jjhamm22, Jun 12, 2019
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  6. Pod Drives

    Volvo IPS, ZF, CMD Zeus, and other pod-drive systems
    Discussions:
    26
    Messages:
    276
    RSS
  7. Inboards

    Inboard and Vee-drive hardware: struts, stuffing boxes, transmissions, coolers
    Discussions:
    513
    Messages:
    4,683
    Latest: Shaft vibration Sam Smullin, Sep 17, 2019
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  8. Diesel Engines

    Diesel Engines
    Discussions:
    647
    Messages:
    8,039
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    401
    Messages:
    4,347
    Latest: Volvo 200D v8 wont start gonzo, Sep 6, 2019
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    45
    Messages:
    852
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    209
    Messages:
    5,242
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    270
    Messages:
    5,468
    Latest: To Sum Up gonzo, Oct 17, 2019
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  15. Barry
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  16. captainralph
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  17. Brian.Lin
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  18. Afilimon
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  19. DCockey
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  20. Archangl7
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  21. ocean dreamer
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  22. crwsound
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  23. James007
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  27. DSTONE
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  28. Tlray
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  29. Upston
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  30. franklou
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  31. PickleRick
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  32. xellz
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  33. Singleinboard
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  34. brian eiland
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  35. 91SARATH
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  36. Archangl7
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  37. xellz
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    1,288
  38. Carter Beall
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    10
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    3,495
  39. kschung
    Replies:
    11
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  40. Leveboat
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