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  1. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Hi Brew That's not what i'm doing. To be sure fin drag is only one part of the overall drag but it is significant. The consequences are not...
    Post by: Roy Stuart, Oct 13, 2015 in forum: Surfboards and Surfboard Design
  2. Roy Stuart
    Post

    Does water temperature affect fin performance?

    You are 100% correct, most of them have been based on foil shapes since 1996.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  3. Roy Stuart
    Post

    Does water temperature affect fin performance?

    That's a moral question, to which I don't know the answer. ;)
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  4. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Physics old sport.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  5. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Not necessarily since one of the consequences could be fin spinout.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  6. Roy Stuart
    Post

    Does water temperature affect fin performance?

    It certainly is not miniscule. As I've stated already, the magnitude of the difference in the reynolds number is similar to the change over the...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  7. Roy Stuart
    Post

    Does water temperature affect fin performance?

    The relative difference is the same for salt water. .
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  8. Roy Stuart
    Post

    Does water temperature affect fin performance?

    It's neither sh8t nor spam, it's research which is being shared for anyone who is interested... this group doesn't have to include you.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  9. Roy Stuart
    Post

    Does water temperature affect fin performance?

    BS to you, I'm not selling anything on the basis of this analysis. My take on on it in the first instance is that if one is inclined to reduce...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  10. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Here's the example which I used in the original post ( http://www.roystuart.biz/2015/10/does-water-temperature-affect-your.html) for a fairly...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  11. Roy Stuart
    Post

    Does water temperature affect fin performance?

    I haven't said anything of the sort. The point is that the change in water viscosity over that temperature range causes a significant change in...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  12. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Why?... in order to reduce wetted surface area as speed increases. Perhaps you meant 'how?'. In that case one answer is that a simple motorised...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  13. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Yeah dude, but this analysis has nothing to do with structural integrity or flex. It's about changes in flow behaviiour due to viscosity of the...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  14. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Sorry but we are talking about flow conditions not fin flexibility... and the maths supporting that doesn't lie either. What you have responded...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  15. Roy Stuart
    Post

    Does water temperature affect fin performance?

    If the fin has a constand chord then it could be retracted into a slot.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  16. Roy Stuart
    Post

    Does water temperature affect fin performance?

    Now there's an idea... while we are at it we might as well heat the whole board.
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  17. Roy Stuart
    Post

    Does water temperature affect fin performance?

    That's certainly not the case. Flow conditions affect foil performance. The magnitude of the difference is similar to that due to changes in...
    Post by: Roy Stuart, Oct 12, 2015 in forum: Surfboards and Surfboard Design
  18. Roy Stuart
    Thread

    Does water temperature affect fin performance?

    http://www.roystuart.biz/2015/10/does-water-temperature-affect-your.html Have you noticed anything along these lines? .
    Thread by: Roy Stuart, Oct 12, 2015, 123 replies, in forum: Surfboards and Surfboard Design
  19. Roy Stuart
    Post

    Getting Gay with Grain?

    [IMG]
    Post by: Roy Stuart, Oct 9, 2015 in forum: All Discussions
  20. Roy Stuart
    Post

    The power and the.... bumps...

    Sorry I just grabbed the track and didn't record the name.
    Post by: Roy Stuart, Sep 15, 2015 in forum: Surfboards and Surfboard Design
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