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    4/18/2026 7:29 am  #1

    bwheeler
    Admiral

    Offline

    Registered: 2/18/2017
    Posts: 19

    Optimization setting

    Looking to understand the Minimum Boat Speed Setting in routing optimization. Specifically, the base setting is 3kts, and I understand that setting it a 0kts (it does happen and shows up in glassy forecasts) can cause Expedition routing math to go haywire.

    Is there a real minimum, say 0.5 kts, where Expedition routing math still works, but can be used to best forecast real world glassy conditions?

     

    4/18/2026 8:20 am  #2

    Ernie M
    Moderator

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    Registered: 11/05/2015
    Posts: 423

    Re: Optimization setting

    Wouldn't it depend on you having a polar with a very high degree of granularity which:
    1. would take a lot of time and testing to get anything accurate, if at all possible
    2  WX forecasting at those low speeds would be  highly unreliability 

    Just those two factors would deem the exercise theoritical at best and likely not very useful in the real world.
    IMHO as they say  :-))
    Ernie

     

    4/18/2026 11:04 pm  #3

    Campbell_Field
    Moderator

    Offline

    From: UK
    Registered: 9/16/2015
    Posts: 307

    Re: Optimization setting

    bwheeler wrote:

    Looking to understand the Minimum Boat Speed Setting in routing optimization. Specifically, the base setting is 3kts, and I understand that setting it a 0kts (it does happen and shows up in glassy forecasts) can cause Expedition routing math to go haywire.

    Is there a real minimum, say 0.5 kts, where Expedition routing math still works, but can be used to best forecast real world glassy conditions?

    Minimum Boatspeed Setting?

     

    :::Campbell Field::::::www.fieldyachting.com:::
     

    4/19/2026 2:12 am  #4

    rvsail
    Admiral

    Offline

    Registered: 7/06/2022
    Posts: 74

    Re: Optimization setting

    Isn’t minimum bsp in a routing sense used as a minimum sailing speed before the routing suggests motoring instead ?

     

    4/20/2026 5:19 am  #5

    Lockie
    Admiral

    Offline

    From: Palma
    Registered: 5/07/2021
    Posts: 86

    Re: Optimization setting

    Yes thats exactly how it works.

     

     

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