Props

Propeller selection, performance comparison, prediction, experience, and modification.

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  1. Jfraz

    Forward drive propeller

    Jfraz, Nov 12, 2016
    Replies:
    12
    Views:
    6,683
    sub_prop
    May 22, 2017
  2. Mermaid Co

    Online resistance & propulsion calculation -holtrop menon

    Mermaid Co, May 20, 2017
    Replies:
    2
    Views:
    3,420
    Mermaid Co
    May 20, 2017
  3. Mermaid Co

    Online resistance prediction-semiplaning transom stern hulls (lahtiharju)

    Mermaid Co, May 20, 2017
    Replies:
    0
    Views:
    2,502
    Mermaid Co
    May 20, 2017
  4. Mermaid Co

    Online resistance prediction-fisher method

    Mermaid Co, May 20, 2017
    Replies:
    0
    Views:
    2,319
    Mermaid Co
    May 20, 2017
  5. Mermaid Co

    Online resistance prediction-trawler (ridgeley-nevitt method)

    Mermaid Co, May 20, 2017
    Replies:
    0
    Views:
    2,304
    Mermaid Co
    May 20, 2017
  6. Mermaid Co

    Online resistance prediction of systematic series of semiplaning-usna

    Mermaid Co, May 20, 2017
    Replies:
    0
    Views:
    2,387
    Mermaid Co
    May 20, 2017
  7. Mermaid Co

    Online B Series propeller weight estimation

    Mermaid Co, May 19, 2017
    Replies:
    0
    Views:
    3,326
    Mermaid Co
    May 19, 2017
  8. Ogrim

    Wake fraction and thrust deduction

    Ogrim, Apr 12, 2017
    Replies:
    2
    Views:
    3,534
    sub_prop
    Apr 27, 2017
  9. terhohalme

    Dimensions of trolling motor prop

    terhohalme, Mar 18, 2017 ... 2
    Replies:
    16
    Views:
    20,227
    terhohalme
    Mar 24, 2017
  10. rwatson

    Innovative Prop and Rudder designs

    rwatson, Mar 16, 2017
    Replies:
    1
    Views:
    2,459
    upchurchmr
    Mar 16, 2017
  11. Mbazylisk

    Donate Kaplan CAD model!

    Mbazylisk, Feb 1, 2017
    Replies:
    10
    Views:
    4,545
    johneck
    Mar 6, 2017
  12. SV Hava Nagila

    pithy proposals on Prop pitch please

    SV Hava Nagila, Feb 20, 2017
    Replies:
    11
    Views:
    3,380
    Mr Efficiency
    Feb 22, 2017
  13. ssgo

    Propeller for hydroplane

    ssgo, Feb 4, 2017
    Replies:
    0
    Views:
    2,869
    ssgo
    Feb 4, 2017
  14. W9GFO

    Over propped? 18x4 3 blade vs 18 x 13 4 blade

    W9GFO, Aug 20, 2016
    Replies:
    13
    Views:
    4,848
    Easy Rider
    Dec 7, 2016
  15. yodani

    Help- High pitch propeller in displacement boat

    yodani, Aug 20, 2016 ... 2
    Replies:
    20
    Views:
    8,209
    yodani
    Nov 29, 2016
  16. benha

    KA-series prop geometry

    benha, Nov 10, 2016
    Replies:
    9
    Views:
    8,841
    johneck
    Nov 29, 2016
  17. rcnesneg

    Forward vs rear prop location

    rcnesneg, Nov 10, 2016
    Replies:
    2
    Views:
    2,750
    jehardiman
    Nov 10, 2016
  18. OCB

    Rim drive propellers/ pods drives

    OCB, Oct 22, 2016 ... 2
    Replies:
    15
    Views:
    6,611
    brian eiland
    Oct 24, 2016
  19. valvebounce

    Wot

    valvebounce, Oct 18, 2016
    Replies:
    6
    Views:
    3,710
    valvebounce
    Oct 19, 2016
  20. valvebounce

    Over revving

    valvebounce, Oct 18, 2016 ... 2
    Replies:
    15
    Views:
    10,055
    valvebounce
    Oct 19, 2016
  21. urisvan

    right propeller for my boat

    urisvan, Sep 6, 2016
    Replies:
    7
    Views:
    3,253
    gonzo
    Sep 8, 2016
  22. Rickdiaz

    Propeller Fabrication

    Rickdiaz, May 29, 2016 ... 2
    Replies:
    23
    Views:
    6,520
    Petros
    Aug 24, 2016
  23. quyetvtt46

    KCA propeller 3&4 blade section thickness

    quyetvtt46, Jun 29, 2016
    Replies:
    1
    Views:
    3,256
    bit
    Aug 15, 2016
  24. rfleet1066

    White lead

    rfleet1066, Aug 7, 2016
    Replies:
    5
    Views:
    3,132
    SamSam
    Aug 9, 2016
  25. mark424x

    Prop Dia vs Torque vs....5-6 ton sailing cat

    mark424x, Jul 25, 2016
    Replies:
    3
    Views:
    2,961
    mark424x
    Jul 30, 2016
  26. Mikthestik

    Range its all about efficiency

    Mikthestik, May 28, 2016 ... 2
    Replies:
    18
    Views:
    6,397
    mydauphin
    Jun 28, 2016
  27. black_sails

    from 1-8 props efficiency & other considerations

    black_sails, May 29, 2016
    Replies:
    1
    Views:
    2,966
    jehardiman
    May 30, 2016
  28. yodani

    Boat overpropped - need help please.

    yodani, May 20, 2016 ... 2
    Replies:
    21
    Views:
    6,301
    yodani
    May 29, 2016
  29. yodani

    Lost propeller needs temporary replacement- help

    yodani, May 22, 2016
    Replies:
    3
    Views:
    3,657
    gonzo
    May 23, 2016
  30. Northeaster

    How far aft is good clearance required under prop?

    Northeaster, May 4, 2016
    Replies:
    7
    Views:
    4,150
    yodani
    May 20, 2016
  31. rpiefke

    Prop diameter vs pitch

    rpiefke, May 2, 2016
    Replies:
    5
    Views:
    6,894
    Mr Efficiency
    May 2, 2016
  32. Mikthestik

    Power according to Ayre

    Mikthestik, Apr 16, 2016
    Replies:
    1
    Views:
    2,824
    FAST FRED
    Apr 17, 2016
  33. DennisRB

    Have a go at my prop sizing?

    DennisRB, Apr 4, 2016
    Replies:
    2
    Views:
    3,686
    DennisRB
    Apr 9, 2016
  34. Roflhat

    Modelling a propeller

    Roflhat, Sep 24, 2015 ... 2 3
    Replies:
    36
    Views:
    15,171
    Roflhat
    Mar 24, 2016
  35. DennisRB

    Prop coating for anti corrosion and fouling?

    DennisRB, Mar 13, 2016
    Replies:
    5
    Views:
    3,989
    DennisRB
    Mar 17, 2016
  36. naserrishehri

    semi submersible propellers

    naserrishehri, Feb 22, 2016
    Replies:
    0
    Views:
    2,976
    naserrishehri
    Feb 22, 2016
  37. DennisRB

    Any outboard props have 17 splines? Volvo folding prop conversion away from alloy.

    DennisRB, Feb 12, 2016
    Replies:
    12
    Views:
    5,675
    DennisRB
    Feb 14, 2016
  38. Deering

    Hung Shen props?

    Deering, Jan 22, 2016
    Replies:
    0
    Views:
    3,661
    Deering
    Jan 22, 2016
  39. ahmetcan_34

    Waterbike Propeller

    ahmetcan_34, Dec 14, 2015
    Replies:
    4
    Views:
    4,350
    philSweet
    Dec 15, 2015
  40. Steve Stephens

    looking for source of counter rotating props

    Steve Stephens, Aug 13, 2015
    Replies:
    7
    Views:
    4,430
    FishStretcher
    Dec 10, 2015
Showing threads 161 to 200 of 544

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