# Prone foil wing size ratios based on weight?

**URL:** <https://forum.progressionproject.com/t/prone-foil-wing-size-ratios-based-on-weight/1540>\
**Category:** Prone Surf Foiling\
**Created:** [February 16, 2023, 2:50am UTC](https://forum.progressionproject.com/t/prone-foil-wing-size-ratios-based-on-weight/1540 "2023-02-16T02:50:05Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@Matt](https://forum.progressionproject.com/u/Matt)\
**Post date:** [November 5, 2024, 10:55am UTC](https://forum.progressionproject.com/t/prone-foil-wing-size-ratios-based-on-weight/1540/7 "2024-11-05T10:55:17Z")

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Tying this back to the Fast Ratio, which seems to generally match ratio of 10 being Safe, and 7 being Fast.

 ![CleanShot 2024-11-05 at 10.53.57@2x](https://canada1.discourse-cdn.com/flex030/uploads/progressionproject/original/2X/8/8e1cefddd44d02243c425556a3d7d3acab3e74c2.png)

> [@Aspect ratio of boards and foils](https://forum.progressionproject.com/t/aspect-ratio-of-boards-and-foils/5305/4):
>
> [[Thursday Thoughts | The Fast Ratio] ](https://www.youtube.com/watch?v=DxJcDzR1BTA) James Casey discusses the idea of a foil ratio, with attached spreadsheet. Seems like a good idea but probably needs to be locked for similar AR or reconsidered with AR in mind

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