Electric Launch Design optimized for semi-displacement speeds

Discussion in 'Projects & Proposals' started by Stephen Ditmore, Jan 1, 2024.

  1. Stephen Ditmore
    Joined: Jun 2001
    Posts: 1,583
    Likes: 77, Points: 58, Legacy Rep: 699
    Location: South Deerfield, MA, USA

    Stephen Ditmore Senior Member

    From https://www.rselectricboats.com/faqs/
    What is the weight of the Pulse 63 electric RIB?
    815kg (including the batteries).​
    From Coding & LCA - RS Electric Boats https://www.rselectricboats.com/coding-lca/
    Design CAT C
    Capacity 6 Persons
    From Eco-Friendly and Sustainable Electric RIB from RS Electric Boats https://www.rselectricboats.com/eco-sustainability/
    PET Core
    Natural Flax Fibre
    Recycled Carbon Fiber (presumably chopped rather than continuous)​

    We're going for a capacity of 8 or 9 persons on an 8m waterline boat with the same motor and about the same range.
    Seems on target to me; steady as she goes.
     
  2. Stephen Ditmore
    Joined: Jun 2001
    Posts: 1,583
    Likes: 77, Points: 58, Legacy Rep: 699
    Location: South Deerfield, MA, USA

    Stephen Ditmore Senior Member

    While I believe these to be displacement speed launches, I thought I'd share what I've learned of them.
    This is a Doug Zurn design with which Boston Boatworks and the late Mark Lindsay were involved: An Island and an Engineer: The Inspiring Story Behind Three Mile Island’s New Electric Boat https://www.outdoors.org/resources/amc-outdoors/features/the-inspiring-story-behind-three-mile-islands-new-electric-boat/
    Attached as a PDF is information on the L-33 by Rob Ladd.
    On Labor Day I took a (slow) cruise on the Dave Gerr designed Solaris: Category: Solaris https://www.hrmm.org/news/category/solaris. Solaris gets all her power from the onboard solar panels; no shore-side charging.
     

    Attached Files:

    Last edited: Sep 17, 2024

  3. Stephen Ditmore
    Joined: Jun 2001
    Posts: 1,583
    Likes: 77, Points: 58, Legacy Rep: 699
    Location: South Deerfield, MA, USA

    Stephen Ditmore Senior Member

    The entry packet is ready! (attached)
     

    Attached Files:

    Last edited: Sep 28, 2024
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