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  1. Adler
    Post

    The mystery of a proper prop and terrible performance.

    Have you removed out of the engine's soft water circuit the thermostat device to be checked into a pot with boiling water ?
    Post by: Adler, Jun 17, 2021 in forum: Props
  2. Adler
    Post

    Correct prop size and speed

    Good Day Ryland, Take a note for a Propeller type: GawnAEW 4 blades (pls see to the next table). Issue due and in respect to Propeller's...
    Post by: Adler, May 12, 2021 in forum: Props
  3. Adler
    Post

    Correct prop size and speed

    Is your engine power between in 55 to 60 hp ?
    Post by: Adler, May 12, 2021 in forum: Props
  4. Adler
    Post

    Correct prop size and speed

    How much heavy is she ?
    Post by: Adler, May 8, 2021 in forum: Props
  5. Adler
    Post

    gearbox ratio calculation

    Think about a solution ..... 2 x Engines 120hp at 2400 rpm 2 x Gearboxes Ratio 1: 1.57 2 x Propellers Dia 470mm Pitch 470mm 4 blades GawnAEW...
    Post by: Adler, May 7, 2021 in forum: Props
  6. Adler
    Post

    Correct prop size and speed

    Why you turn lower the pitch so much. Should never be changed more than 7% ; specially in your case where you have to deal in large variance...
    Post by: Adler, May 7, 2021 in forum: Props
  7. Adler
    Post

    Prop size help

    Dear All, The referred boat class ~ Sweden Yachts 38 sailboat ~ was equiped in standard mode by Volvo type 2003TS / 45hp at 3200rpm and a...
    Post by: Adler, May 7, 2021 in forum: Props
  8. Adler
    Post

    Prop size help

    He needs more power to keep the existing prop and to reach the hull speed ; for that engine 36 hp Lombardini Ldw 1404m this propeller is too...
    Post by: Adler, May 6, 2021 in forum: Props
  9. Adler
    Post

    Prop size help

    Impossible to reach a speed of 7 knots with LWL=31 ft , Displ. 9t and propulsion plant 36hp/3600 through gear ratio 2.18. The propeller is not so...
    Post by: Adler, May 6, 2021 in forum: Props
  10. Adler
    Post

    Propulsion for New boat

    2
    Post by: Adler, Jan 26, 2021 in forum: Props
  11. Adler
    Post

    Propulsion for New boat

    and see the results in case when the boat loading is increasing for 0.75 LT (15%) [ATTACH] [ATTACH] [ATTACH]
    Post by: Adler, Jan 23, 2021 in forum: Props
  12. Adler
    Post

    Propulsion for New boat

    take a look on that size of propeller with cup and gear ratio 1:2 [ATTACH] [ATTACH]
    Post by: Adler, Jan 23, 2021 in forum: Props
  13. Adler
    Post

    Propulsion for New boat

    ...for your records , the Input data set
    Post by: Adler, Jan 23, 2021 in forum: Props
  14. Adler
    Post

    Propulsion for New boat

    ...and regarding tha ratio take a note on that ...[ATTACH] [ATTACH]
    Post by: Adler, Jan 23, 2021 in forum: Props
  15. Adler
    Post

    Propulsion for New boat

    See also that ...[ATTACH] [ATTACH]
    Post by: Adler, Jan 23, 2021 in forum: Props
  16. Adler
    Post

    Propulsion for New boat

    [ATTACH] [ATTACH] [ATTACH] [ATTACH]
    Post by: Adler, Jan 23, 2021 in forum: Props
  17. Adler
    Post

    Propulsion for New boat

    ....and what was your input data set to extract these results ?
    Post by: Adler, Jan 23, 2021 in forum: Props
  18. Adler
    Post

    Propulsion for New boat

    Good evening tonipu, I can't read the image https://www.boatdesign.net/attachments/150437-1544cdca485b17261c09ce8260419186-png.164389/ Could...
    Post by: Adler, Jan 23, 2021 in forum: Props
  19. Adler
    Post

    Shaft-generator on Tall ship

    Hello Marco, Could you please explain "The maximum RPM during sailing is 450 and when steaming 375." ? If we understood well ; The correct...
    Post by: Adler, Mar 1, 2020 in forum: Props
  20. Adler
    Post

    .dxf files??

    What is the size of the hub ?
    Post by: Adler, Mar 5, 2019 in forum: Props
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