Prop shaft powered alternator for cruising sailboats !

Discussion in 'Sailboats' started by Angélique, Sep 29, 2017.

  1. Phil Christieso
    Joined: Jun 2016
    Posts: 83
    Likes: 4, Points: 18, Legacy Rep: 36
    Location: Nelson NZ

    Phil Christieso Junior Member

    None of the above. The rumble comes from the stern bearing and is a totally different sound to the prop noise. The rumble stops because the alternator load on the pulley acts as a third bearing, maybe inducing some side load, dampening the bearing noise from the cutlass. The prop noise is reduced because this stops the prop attaining the higher rpm which causes the prop noise. That's how simple it is.
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.