# Mast Profile - rule of thumb performance impact **URL:** https://foil.zone/t/mast-profile-rule-of-thumb-performance-impact/4457 **Category:** Foils & Boards **Created:** [May 9, 2019, 3:05pm UTC](https://foil.zone/t/mast-profile-rule-of-thumb-performance-impact/4457 "2019-05-09T15:05:04Z") **Posts on this page:** 1 **Showing post:** 7
### Author: ![SoEFoil](https://foil.zone/user_avatar/foil.zone/soefoil/32/55_2.png) [@SoEFoil](https://foil.zone/u/SoEFoil) #### Post date: [May 11, 2019, 11:00am UTC](https://foil.zone/t/mast-profile-rule-of-thumb-performance-impact/4457/7 "2019-05-11T11:00:52Z")
Leading edge, trailing edge, … This post should be useful to you: > **[Carbon wings optimized profile for e-foils now available](https://foil.zone/t/carbon-wings-optimized-profile-for-e-foils-now-available/2230/10)** > > Since 2017, a few manufacturers have moved to the same standard: 3 screws spaced by 4cm : RRD, Takuma, Naish, Gong (55USD for 65cm mast), Airush … The mast is held by 3 screws diam 6mm, the fuselage is held by 2 x 6mm screws (could be 3). This... The parameters that matter: airfoil section, profile thickness and thickness to chord ration, same thing with front wing airfoil sections… demonstrated with figures here: > **[\[superlefax\] real-world propeller comparison](https://foil.zone/t/superlefax-real-world-propeller-comparison/4093/18)** > > I now have a comparison for the SUP Takuma Clone VS. RL-Foil VS. RESULTS I’m really satisfied with the build quality and the overall consumption is about 20% less. That means 20% more ride time! Max speed is 34 km/h. I really can... Today, in kitefoil, to go beyond 45 knots (70mph or 80 kmph) without motor (just wind), the best mast thickness is ~11.6mm, built in UHM carbon (Ultra High Mofulus). That’s half the 2008 Carafino kitefoil mast thickness (22mm) which had a very draggy elliptical airfoil section. For me, the ideal efoil or kitefoil board should look like this (half joking 😉) ![Laugh_efoil_board](https://foil.zone/uploads/default/original/2X/b/b4ecc3e005469bb5f0507a000c7a62676e888f8f.jpeg) --- _[View the full topic](https://foil.zone/t/mast-profile-rule-of-thumb-performance-impact/4457)._