# AFS Silk HA tails

**URL:** <https://forum.progressionproject.com/t/afs-silk-ha-tails/7590>\
**Category:** Uncategorized\
**Created:** [November 6, 2024, 9:52pm UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590 "2024-11-06T21:52:42Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jondrums](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jondrums](https://forum.progressionproject.com/u/jondrums)\
**Post date:** [November 6, 2024, 9:52pm UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/1 "2024-11-06T21:52:42Z")

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Does anyone have specs for these tails? I can’t find span and chord listed anywhere!  
HA38 HA40 HA43

Any has anyone got any feedback or comparisons to other similar tails like the KD Marlin, KD Race, Axis skinny, etc?

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**Author:** ![jondrums](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jondrums](https://forum.progressionproject.com/u/jondrums)\
**Post date:** [November 6, 2024, 9:57pm UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/2 "2024-11-06T21:57:37Z")

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OK, so I found _some_ specs, but not the HA38/40/43

> **[AFS Silk Stabilizer Wing](https://www.mackiteboarding.com/afs-silk-stabilizer-wing/)**
>
> America's Largest Kiteboarding Retailer

**Silk**

| Surface (cm2) | Span (mm) | Aspect Ratio | Cord max (mm) | Thickness max (mm) | Construction | Weight (kg) | Screw size | Compatibility |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 132 | 300 | 6.8 | 58.8 | 7.1 | UHM Carbon | 0.1 | 12 | All AFS fuselages |
| 142 | 320 | 7.2 | 58 | 7 | UHM Carbon | 0.1 | 12 | All AFS fuselages |
| 152 | 340 | 7.6 | 57.3 | 6.9 | UHM Carbon | 0.1 | 12 | All AFS fuselages |

**Silk HA**

| Surface (cm2) | Span (mm) | Aspect Ratio | Cord max (mm) | Thickness max (mm) | Construction | Weight (kg) | Screw size | Compatibility |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 135 | 380 | 11.9 | 43 | 6.5 | HM Carbon | 0.1 | M6x12 mm | All AFS fuselages |
| 145 | 405 | 11.3 | 43 | 6.5 | HM Carbon | 0.1 | M6x12 mm | All AFS fuselages |
| 155 | 430 | 10.6 | 43 | 6.5 | HM Carbon | 0.1 | M6x12 mm | All AFS fuselage |

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**Author:** ![FoilATX](https://avatars.discourse-cdn.com/v4/letter/f/a9adbd/32.png) [@FoilATX](https://forum.progressionproject.com/u/FoilATX)\
**Post date:** [November 7, 2024, 1:10am UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/3 "2024-11-07T01:10:58Z")

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Those are the ha38 40 and 43, those are named by the span as their surface area matched existing stabilizers… not ideal but helps the numbers not be doubled up

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**Author:** ![jondrums](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jondrums](https://forum.progressionproject.com/u/jondrums)\
**Post date:** [November 7, 2024, 10:52pm UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/4 "2024-11-07T22:52:55Z")

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ok, makes sense now.  
By The Way for those looking carefully, they screwed up and swapped the aspect ratio calculation for the 38 and 43. Should be:

| Surface (cm2) | Span (mm) | Aspect Ratio |
| --- | --- | --- |
| 135 | 380 | 10.6 |
| 145 | 405 | 11.3 |
| 155 | 430 | 11.9 |

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**Author:** ![Velocicraptor](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@Velocicraptor](https://forum.progressionproject.com/u/Velocicraptor)\
**Post date:** [January 13, 2026, 7:37pm UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/5 "2026-01-13T19:37:24Z")

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New higher aspect (10AR), thin (5mm!) tails. Would love some ride reports on these.

> **[AFS - Stabilisateur U Carve -Made In France - Full Carbon](https://afs-foiling.com/fr/produit/stabilisateur-u-carve/)**
>
> Découvrez notre gamme de stabilisateur U Carve

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**Author:** ![miamiwngr](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@miamiwngr](https://forum.progressionproject.com/u/miamiwngr)\
**Post date:** [January 14, 2026, 1:21am UTC](https://forum.progressionproject.com/t/afs-silk-ha-tails/7590/6 "2026-01-14T01:21:59Z")

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It looks just like the mako tails that people have been saying work great with afs. Anyone know if the mako designer is involved?