Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    404
    Messages:
    4,534
    Latest: have I ruined another prop? Mr Efficiency, Aug 21, 2017 at 1:14 AM
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  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    155
    Messages:
    2,476
    Latest: Surface drive bug has re surfaced tom kane, Aug 17, 2017 at 7:08 PM
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    409
    Messages:
    3,833
    Latest: Questions on keel design for jet drive tunnel hull? DSR, Aug 19, 2017 at 8:35 PM
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    907
    Messages:
    8,461
    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:
    521
    Messages:
    3,549
    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:
    496
    Messages:
    4,491
    Latest: high power sail drive james cameron, Jul 31, 2017
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    605
    Messages:
    7,629
    Latest: Diesel fuel tanks Sparky568, Aug 23, 2017 at 12:23 PM
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    369
    Messages:
    4,099
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    17
    Messages:
    320
    Latest: 24v 120lb DIY brushless motor project Caroute Motor, Aug 21, 2017 at 9:54 AM
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    206
    Messages:
    5,215
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    263
    Messages:
    5,367
    Latest: Hybrid marinising crowsridge, Aug 6, 2017
    RSS
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