Contact   Imprint   Advertising   Guidelines

alu masts

A forum dedicated to Hydrofoil riders
dkazhdan
Rare Poster
Posts: 42
Joined: Mon Jun 18, 2018 4:05 am
Local Beach: Miami beach
Style: foil
Gear: airush
Brand Affiliation: None
Has thanked: 54 times
Been thanked: 1 time

alu masts

Postby dkazhdan » Sat Feb 01, 2020 6:38 pm

Hi, I am about to buy a moses foil and deciding between an aluminum and a carbon mast. A carbon one would set me back about 700$ more, I am questioning myself if it's worth it?

I guess what I am trying to figure out is that apart from the weight would there be any noticeable difference in riding?

In other words, if one is given an aluminum and a carbon set in succession for a blind test ride, would one be able to tell which one is which?

Thanks all

dave1986
Frequent Poster
Posts: 361
Joined: Sat May 28, 2005 3:25 am
Gear: .
Brand Affiliation: None
Has thanked: 42 times
Been thanked: 35 times

Re: alu masts

Postby dave1986 » Sat Feb 01, 2020 6:58 pm

Options you have are as follows:

Moses Carbon (2020 Models)
Sizes 72cm/82cm

Moses Carbon (older models)
Sizes 41cm/61cm/71cm/91cm/101cm (Most flexible)

Moses Aluminium:
Sizes 75cm

Slingshot/Ride Engine Aluminium mast with adaptor.
Sizes 46cm/61cm/71cm/90cm

Can anyone comment on which of these are the stiffest/most flexible?
These users thanked the author dave1986 for the post:
dkazhdan (Sun Feb 02, 2020 11:13 pm)
Rating: 10%

Wazza Foil
Medium Poster
Posts: 76
Joined: Sat Mar 18, 2017 12:15 am
Local Beach: Hams
Style: Kite surfing strapless. Foil, SUP and ka
Gear: lots
Brand Affiliation: None
Has thanked: 4 times
Been thanked: 11 times

Re: alu masts

Postby Wazza Foil » Sat Feb 01, 2020 9:42 pm

I have 72cm Moses carbon mast, 61 and 90 cm Slingshot aluminum masts.
The SS masts have Jimmy Stringfellow adapters and all good.
The adapters and plate make the aluminum masts a couple of cms longer where as the Moses carbon is 71cm including the plate.
I use the 61cm aluminum mast for Windwing with Moses 873 wing and No issues.
The 90cm Aluminum mast I have used the Moses 683 wing again no issues.
The Moses 72cm mast I have used 683, 790 and 873 all good.
I foil with Cloud kites and Wasp wing mostly in Lake water with wind 7 to 25 plus kn.
SUP foil in small surf but still very early days.
The heavier aluminum masts help sink the big wings but only a bit more than the carbon mast.
In summary all good for what I do.
These users thanked the author Wazza Foil for the post:
dkazhdan (Sat Feb 01, 2020 11:58 pm)
Rating: 10%

dave1986
Frequent Poster
Posts: 361
Joined: Sat May 28, 2005 3:25 am
Gear: .
Brand Affiliation: None
Has thanked: 42 times
Been thanked: 35 times

Re: alu masts

Postby dave1986 » Sat Feb 01, 2020 9:54 pm

Wazza Foil wrote:
Sat Feb 01, 2020 9:42 pm
I have 72cm Moses carbon mast, 61 and 90 cm Slingshot aluminum masts.
The SS masts have Jimmy Stringfellow adapters and all good.
My 91cm Moses carbon 2018 mast has significant flex when bending and twisting it on the beach.
I believe that the 2020 Moses carbon masts (72cm/82cm) are stiffer than the previous years carbon masts.
Can you notice any difference in stiffness between the Slingshot aluminium masts and the Moses carbon 72cm mast?

grigorib
Very Frequent Poster
Posts: 2168
Joined: Mon Aug 01, 2016 8:12 pm
Kiting since: 2009
Local Beach: OBX; Clinton Lake, IL; Lake Michigan; La Ventana, SPI; Tawas, MI
Gear: Kites: Slingshot Rally 5/7/9/11m, SST 5m, Turbine 9m, Flysurfer Speed4 10m standard, Peter Lynn Venom II ARC 16m

Boards: Spleene RIP 37, Flysurfer Radical6 138, Flysurfer Flydoor5 XL, Slingshot/Moses 80/82/91/105cm masts with 590/330 695/425 683s/450 679/483 wingsets, Tim's 36" woody, Slingshot Dwarfcraft Micro 3'6" 2019-2020, MBS Comp 95x

For sale: Slingshot SST 6m 2018 $480, Slingshot RPM 11m 2018 like new $600, Slingshot Turbine 5m 2017 like new $450, BROkite carbon board 140x44cm like new complete $650, Slingshot Rally 6m 2017 like new $530
.
Brand Affiliation: None
Has thanked: 139 times
Been thanked: 172 times

Re: alu masts

Postby grigorib » Sat Feb 01, 2020 10:39 pm

Besides the weight, there are following factors to consider:
- aluminum masts (Slingshot + adapter) have more holes on mount plate which allows more option in mounting mast to various positions and boards.
- aluminum masts come in many sizes and you can interchange lengths easily and very cheap (~$100 per mast)
- aluminum masts might have corrosion issues so make sure you grease them well
- Moses aluminum mast is incompatible with most of Moses fuselages and only works with two "Alu" fuselages. My compatibility chart here viewtopic.php?p=1075851#p1075851
- Moses aluminum mast comes only in two length - 75/95cm but it's a good pair
- aluminum masts are stiffer and stronger

All that being said - I'm buying 82cm carbon mast to replace 80cm Slingshot aluminum mast with adapter to ride shallow water and no aluminum mast will replace my 105cm mast I ride in deep waters
These users thanked the author grigorib for the post:
dkazhdan (Sat Feb 01, 2020 11:59 pm)
Rating: 10%

dave1986
Frequent Poster
Posts: 361
Joined: Sat May 28, 2005 3:25 am
Gear: .
Brand Affiliation: None
Has thanked: 42 times
Been thanked: 35 times

Re: alu masts

Postby dave1986 » Sat Feb 01, 2020 10:50 pm

grigorib wrote:
Sat Feb 01, 2020 10:39 pm
All that being said - I'm buying 82cm carbon mast to replace 80cm Slingshot aluminum mast with adapter to ride shallow water and no aluminum mast will replace my 105cm mast I ride in deep waters
It would be interesting to compare weight and stiffness differences between these 2 options (82cm Moses carbon vs 80cm Slingshot aluminum).

I'm wondering whether the flex becomes a bigger issue when using huge high aspect wings like the 1100 (2100cm²)

grigorib
Very Frequent Poster
Posts: 2168
Joined: Mon Aug 01, 2016 8:12 pm
Kiting since: 2009
Local Beach: OBX; Clinton Lake, IL; Lake Michigan; La Ventana, SPI; Tawas, MI
Gear: Kites: Slingshot Rally 5/7/9/11m, SST 5m, Turbine 9m, Flysurfer Speed4 10m standard, Peter Lynn Venom II ARC 16m

Boards: Spleene RIP 37, Flysurfer Radical6 138, Flysurfer Flydoor5 XL, Slingshot/Moses 80/82/91/105cm masts with 590/330 695/425 683s/450 679/483 wingsets, Tim's 36" woody, Slingshot Dwarfcraft Micro 3'6" 2019-2020, MBS Comp 95x

For sale: Slingshot SST 6m 2018 $480, Slingshot RPM 11m 2018 like new $600, Slingshot Turbine 5m 2017 like new $450, BROkite carbon board 140x44cm like new complete $650, Slingshot Rally 6m 2017 like new $530
.
Brand Affiliation: None
Has thanked: 139 times
Been thanked: 172 times

Re: alu masts

Postby grigorib » Sat Feb 01, 2020 10:54 pm

dave1986 wrote:
Sat Feb 01, 2020 10:50 pm
grigorib wrote:
Sat Feb 01, 2020 10:39 pm
All that being said - I'm buying 82cm carbon mast to replace 80cm Slingshot aluminum mast with adapter to ride shallow water and no aluminum mast will replace my 105cm mast I ride in deep waters
It would be interesting to compare weight and stiffness differences between these 2 options (82cm Moses carbon vs 80cm Slingshot aluminum).

I'm wondering whether the flex becomes a bigger issue when using huge high aspect wings like the 1100 (2100cm²)
I never had issues with stiffness, or at least I never realized how carbon feels less stiff. I also ride 1000 sq.cm and smaller wings so maybe it never came up as an issues.
The slingshot aluminum is certainly more draggy/noisy because of thicker profile.

Kitetwin-1
Medium Poster
Posts: 104
Joined: Fri Jan 15, 2016 11:16 pm
Local Beach: Kettle point
The BlueWater Bridge
Brights Grove
Favorite Beaches: Cuba cayo Guillermo
Turks Long Bay
Hatteras of course
St Lucia
Style: Free ride and foiling
Gear: Cabrinha
Brand Affiliation: None
Has thanked: 11 times
Been thanked: 15 times

Re: alu masts

Postby Kitetwin-1 » Sat Feb 01, 2020 11:06 pm

Get the carbon, hands down. Yes it’s more money but you will end up there sooner or later
These users thanked the author Kitetwin-1 for the post:
dkazhdan (Sat Feb 01, 2020 11:58 pm)
Rating: 10%

richy-c
Medium Poster
Posts: 106
Joined: Wed May 16, 2018 7:48 pm
Kiting since: 2006
Gear: Its not what ive got its how i use it. :-)
Brand Affiliation: None
Has thanked: 35 times
Been thanked: 7 times

Re: alu masts

Postby richy-c » Sat Feb 01, 2020 11:08 pm

dkazhdan wrote:
Sat Feb 01, 2020 6:38 pm
Hi, I am about to buy a moses foil and deciding between an aluminum and a carbon mast. A carbon one would set me back about 700$ more, I am questioning myself if it's worth it?

I guess what I am trying to figure out is that apart from the weight would there be any noticeable difference in riding?

In other words, if one is given an aluminum and a carbon set in succession for a blind test ride, would one be able to tell which one is which?

Thanks all
Are you learning on this foil?

dkazhdan
Rare Poster
Posts: 42
Joined: Mon Jun 18, 2018 4:05 am
Local Beach: Miami beach
Style: foil
Gear: airush
Brand Affiliation: None
Has thanked: 54 times
Been thanked: 1 time

Re: alu masts

Postby dkazhdan » Sat Feb 01, 2020 11:25 pm

richy-c wrote:
Sat Feb 01, 2020 11:08 pm

Are you learning on this foil?
Learning. I've been foiling for a year on a Shinn P-Foil, got to a point where i can pull off most of my footswitches in the air.
I find that the p-foil starts feeling draggy so i am looking for an upgrade.

Another factor when considering an alu mast is that unless i am being wrong a moses 633/alu mast foil sinks rather than floats on its side? Which is a huge benefit in light wind as i see it.


Return to “Hydrofoil”

Who is online

Users browsing this forum: a99 and 5 guests