Surface percing propeller matching problem

Discussion in 'Props' started by manunk, Jun 20, 2005.

  1. manunk
    Joined: Jun 2005
    Posts: 3
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Indonesia

    manunk New Member

    Dear all,
    Now, I am evaluating a Boat (displ. 16,3 T) propelled with Surface piercing propeller ( Pitch : 28", diameter :23,5", and six blade). recent sea trial test result show that the engine (CAT 2 x 570 HP) is run in a overload condition for a normal speed operation. then i intend to make an evaluation especially the "matching" problem, thus i need an open water characteristics data for the propeller mentioned above.
    i've been searching for it and i haven't got it yet. where can i find this data?
    please, i need a help here..
    thank you very much
     
    manunk, Jun 20, 2005
    #1
  2. RANCHI OTTO
    Joined: Apr 2005
    Posts: 1,042
    Likes: 37, Points: 0, Legacy Rep: 535
    Location: TRIESTE (ITALY)

    RANCHI OTTO Naval Architect

    Probably the pitch of the propeller is not correct.
    I don't know who is the manufacturer but if you send them the sea trial results indicating :
    1) speed - rpm - temp exhaust gas - prop. system inclination

    they will modify the pitch of the propellers. (is not so complicated)
    The openwater of such piercing prop's are more complicated then the open for normal screws because the possibility to trim them.

    RANCHI Otto
     
    RANCHI OTTO, Jun 21, 2005
    #2
Loading...
Similar Threads
  1. Shafri

    Looking for Seller of Cleaver/Surface Piercing Propeller 5/6 Blades 100HP

    Shafri, Mar 26, 2022, in forum: Props
    Replies:
    9
    Views:
    3,893
    Shafri
    Mar 29, 2022
  2. wayne stratton

    surface prop for small outboard

    wayne stratton, Jun 21, 2017, in forum: Props
    Replies:
    9
    Views:
    9,627
    ondarvr
    Jul 7, 2017
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.