Contact   Imprint   Advertising   Guidelines

Alu mast (strut) with 3 bolts - standard?

A forum dedicated to Hydrofoil riders
jaros
Frequent Poster
Posts: 449
Joined: Sun Dec 15, 2002 1:00 am
Kiting since: 0
Brand Affiliation: None
Location: Slovenia
Has thanked: 11 times
Been thanked: 3 times

Alu mast (strut) with 3 bolts - standard?

Postby jaros » Fri Jul 06, 2018 10:07 am

Hi,
Is the 3 bolts alu strut becoming a standard? Are many producers using the same profile or does it only look identical?
Greetings,
Jaros
Attachments
strut profile.jpg

User avatar
SparD
Frequent Poster
Posts: 230
Joined: Tue Jul 02, 2013 9:47 pm
Kiting since: 2011
Local Beach: Almanarre
Gear: Foil kites : Ozone R1V3
Tube kites : Ocean Rodeo Flite
Hydrofoil : Moses Comet
Brand Affiliation: Moses Hydrofoil
Ocean Rodeo
Location: Hyères, France
Has thanked: 1 time
Been thanked: 3 times

Re: ALU mast (strut) with 3 bolts - standard?

Postby SparD » Fri Jul 06, 2018 10:31 am

Seems like it.

Seen this masts on foils from RRD, Takuma, Naish and Gong.

I'm sure there are other manufacturers using them and I think the reason is that chineese factories are offering this masts for a good price.

User avatar
tegirinenashi
Very Frequent Poster
Posts: 640
Joined: Wed Aug 27, 2014 3:29 am
Kiting since: 2003
Local Beach: 3rd Ave
Gear: Bates 4000, Dominator MX-10
Brand Affiliation: None
Has thanked: 8 times
Been thanked: 3 times

Re: Alu mast (strut) with 3 bolts - standard?

Postby tegirinenashi » Fri Jul 06, 2018 2:44 pm


revhed
Very Frequent Poster
Posts: 1182
Joined: Sun Feb 24, 2008 6:15 pm
Kiting since: 1987
Local Beach: france
Gear: kites
Location: France
Has thanked: 10 times
Been thanked: 2 times

Re: Alu mast (strut) with 3 bolts - standard?

Postby revhed » Fri Jul 06, 2018 4:25 pm

tegirinenashi wrote:
Fri Jul 06, 2018 2:44 pm
I'd argue that 2 bolts design is superior.
:thumb:
R H

User avatar
Horst Sergio
Very Frequent Poster
Posts: 534
Joined: Thu Oct 29, 2015 10:57 pm
Kiting since: 1999
Favorite Beaches: Every puddle I can find in Central Europe,
the unpopular the better
Style: SLOW STYLE & stuntkiting
Gear: Just MONOFOILS, no training wheels ;-)
OZONE chrono; FLYSURFER sonic²/r, peak4; CONCEPTAIR firefly; DUOTONE foilwing
Brand Affiliation: KITEJUNKIE.com 's prank monkey
Has thanked: 23 times
Been thanked: 26 times
Contact:

Re: Alu mast (strut) with 3 bolts - standard?

Postby Horst Sergio » Fri Jul 06, 2018 8:18 pm

I think reason here is just to fit kitefoilbox standard.

I think the basic idea of kitefoil box to allow one or two screw connection resutling in 3 holes is not bad. And also not to have them all in the same distance,

but todays best strut profiles in alu or same in carbon are just to small to fit 80 mm of distance for the needed M8 screws. Or they cause draggy fat profiles as that one on the picture.

Around 2 x 30 mm would have been much better, but it seems as now it is maybe to late to chance standard, isn't it?

HendrikVdP
Rare Poster
Posts: 49
Joined: Sun Jun 22, 2008 12:44 pm
Kiting since: 2005
Local Beach: cadzand-bad Netherlands
Favorite Beaches: kitebeach el gouna Egypt
Style: freestyle
Gear: north vegas '10 7m
north vegas '08 9&12m²
undergound flx 132
Brand Affiliation: None
Location: BE/NL
Has thanked: 0
Been thanked: 1 time

Re: Alu mast (strut) with 3 bolts - standard?

Postby HendrikVdP » Mon Jul 09, 2018 2:16 am

i'd love to know the exact measurements of all masts to be able to figure out compatibility.

here is what i measured from my North speedster mast :

Mast thickness : 15mm
Cord : 96mm
2 bolt fixing, M8 47mm apart

Baseplate 90mm x 165mm

User avatar
bragnouff
Very Frequent Poster
Posts: 803
Joined: Tue May 14, 2002 1:00 am
Kiting since: 99
Local Beach: New Brighton
Gear: Alkita boards
Zeeko foil
GK Trix
Enduro9
Brand Affiliation: GK enthusiast
Location: Te Wai Pounamu
Has thanked: 15 times
Been thanked: 41 times
Contact:

Re: Alu mast (strut) with 3 bolts - standard?

Postby bragnouff » Mon Jul 09, 2018 4:19 am

Zeeko's mast also uses 3 M8 bolts, but the profile is different. Longer chord, which means there is much more meat around the holes 1 and 3, and probably more torsional stiffness as a result.
Also the leading edge isn't as stupidly sharp as the one pictured, cause there's just no reason for it to be that sharp...

windmaker
Very Frequent Poster
Posts: 1616
Joined: Sun Jun 15, 2003 8:48 am
Kiting since: 1999
Local Beach: .
Style: Strapless surf and foil
Gear: F-One & Aeros kites/ HB surf/ Taaroa foil/ Manera
Has thanked: 12 times
Been thanked: 26 times
Contact:

Re: Alu mast (strut) with 3 bolts - standard?

Postby windmaker » Mon Jul 09, 2018 4:06 pm

jaros wrote:
Fri Jul 06, 2018 10:07 am
Hi,
Is the 3 bolts alu strut becoming a standard? Are many producers using the same profile or does it only look identical?
Greetings,
Jaros
With hydrofoils ,there are 2 types of manufacturers. Those who develop and do there own research, and those who make stickers. The latest are more likely to use generic parts which could be compatible between them.

cwood
Very Frequent Poster
Posts: 540
Joined: Tue Mar 24, 2015 7:28 pm
Kiting since: 2014
Local Beach: Cherry Beach, Toronto
Gear: Flysurfer
Moses Hydrofoil
Brand Affiliation: None
Has thanked: 0
Been thanked: 29 times

Re: Alu mast (strut) with 3 bolts - standard?

Postby cwood » Mon Jul 09, 2018 6:22 pm

I would not hold breath for compatible parts among manufacturers. This stuff will always be proprietary because those that can actually manufacture will constantly be changing stuff to have differentiation. No return in making mix and match possible...only hurts them.

User avatar
Kamikuza
Very Frequent Poster
Posts: 6232
Joined: Fri Jan 09, 2009 4:49 am
Local Beach: Sabae Beach
Favorite Beaches: Ol' Stinky
Gear: This, that, the other
Has thanked: 65 times
Been thanked: 46 times

Re: Alu mast (strut) with 3 bolts - standard?

Postby Kamikuza » Tue Jul 10, 2018 2:45 pm

bragnouff wrote:
Mon Jul 09, 2018 4:19 am
Zeeko's mast also uses 3 M8 bolts, but the profile is different. Longer chord, which means there is much more meat around the holes 1 and 3, and probably more torsional stiffness as a result.
Also the leading edge isn't as stupidly sharp as the one pictured, cause there's just no reason for it to be that sharp...
But only two bolts on the fuselage to mast though? That also seems to be standard for the three bolts at the plate end too.

Axis now does two bolts at both the top and bottom, but the fuselage connection uses a tongue-in-groove to stiffen that joint. At least, the SUP/surf foil does, don't know about the kite foil.


Return to “Hydrofoil”

Who is online

Users browsing this forum: Flyboy, purdyd, Regis-de-giens and 8 guests

cron