number of blades vs vibration, efficiency, cost

Discussion in 'Props' started by Tongichi, Jul 24, 2011.

  1. Tongichi
    Joined: Jul 2011
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Thailand

    Tongichi New Member

    Hi everyone,

    I'm studying the relationship of different blade numbers that influence vibration, propeller efficiency and cost of propeller.

    Could you please make a comment on the logic of this such issue. or kindly suggest me some papers or references which this topic involved in.

    I'm new here, nice to see you guys

    Tongichi
     
  2. eyschulman
    Joined: Jul 2011
    Posts: 253
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    Location: seattle Wa USA

    eyschulman Senior Member

    Look up Dave Gerr the propeller book- More blades tend to be smoother and can make up for shortfall in diameter. Less blades more efficient. A big two blade prop under right conditions most efficient.
     
  3. Tongichi
    Joined: Jul 2011
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Thailand

    Tongichi New Member

    Thanks for your reply, I will start work on Dave Gerr :)
     
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