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by Harri
Sun Jul 21, 2019 3:25 pm
Forum: Hydrofoil
Topic: Twist Wings liquid force impulse
Replies: 19
Views: 2362

Re: Twist Wings liquid force impulse

@ IDAVIS: this is caused by a twisted fuselage (or more the screw inserts of the rearwing in the fuselage), i had the same issue, got a new one within some days. In the meanwhile i fixed the problem with some strips of tigertape: just add a strip of tape on one side until the rearwing is in the same...
by Harri
Thu Apr 19, 2018 9:23 am
Forum: Hydrofoil
Topic: 2018 LF Thruster Foil
Replies: 60
Views: 26991

Thruster Foil on Carbon Fuselage

Does anyone have the carbon-setup and can share experiences? Carbon wings with the carbon fuselage?
by Harri
Tue Jan 30, 2018 11:38 am
Forum: Hydrofoil
Topic: 2018 LF Thruster Foil
Replies: 60
Views: 26991

Re: 2018 LF Thruster Foil

It is marketing trumping the law of physics: "We cooked some magical shape that allows 600 cm^2 wing to have lower end than 800 cm^2 wing". (I guesstimated the Thruster area to be below 600 cm^2, it would be nice if somebody confirm/refute this number). I measured the FW of the Thruster, it has abo...
by Harri
Wed Oct 04, 2017 3:05 pm
Forum: Hydrofoil
Topic: Shinn Jackson foil 120
Replies: 18
Views: 4624

Re: Shinn Jackson foil 120

Anybody know how much this board weighs? I can't find it in the specs. Looks like a fun board. I have the 120 and mine weighs about 3,5 kg. As Mark already mentioned it is really very durable, no comparison to lighter carbon boards, i've already owned. Touchdowns are no problems, as you can see in ...
by Harri
Thu Jul 20, 2017 7:35 am
Forum: Hydrofoil
Topic: Mast vs wing placement
Replies: 5
Views: 1690

Re: Mast vs wing placement

I have a custom foil and mast position in the fuselage was identical with the LF foilfish: the rear edge of the mast was exactly in the middle of the fuselage. This worked well. Recently i drilled one more hole in the fuselage and mounted the mast 4 cm more frontward (mast's leading edge is now appr...
by Harri
Wed May 03, 2017 9:42 pm
Forum: Gear Builders
Topic: 8mm G10 for front wing?
Replies: 13
Views: 4717

Re: 8mm G10 for front wing?

^^ Harri. Many thanks for that. Those wings have a pretty large surface areas (larger than the norm, i think?). Is this, I wonder, to compensate for the lower lift from the thin profile? No, nothing due to the thin profile! On my homespot we have mostly winds with 8-12 knots, i'm weighing 95 kg, wi...
by Harri
Wed May 03, 2017 11:38 am
Forum: Gear Builders
Topic: 8mm G10 for front wing?
Replies: 13
Views: 4717

Re: 8mm G10 for front wing?

Enclosed the outline of both frontwings. One has 60 cm span, the other 62,5 cm. Also attached the outline of the rearwing. I would prefer the frontwing with 60 cm due to the straight trailing edge, just easier to work with. I just cut it out of the plate. Then profiled it with a belt sander (80-100)...
by Harri
Wed May 03, 2017 9:28 am
Forum: Gear Builders
Topic: 8mm G10 for front wing?
Replies: 13
Views: 4717

Re: 8mm G10 for front wing?

8mm is OK! I've done 2 sets of wings 1 year ago. They still work really fine, by now ca. 60 sessions without any problems. Both frontwings out of 8mm G10 FR4 as you said. Measurements 61 x 16 cm. They are for example stiffer than wings from Alpine Foil (5.0 Access). Thea are really hard to bend!!! T...
by Harri
Sun Mar 26, 2017 1:55 pm
Forum: Kitesurfing
Topic: Compstick trim conversion.
Replies: 11
Views: 2472

Re: Compstick trim conversion.

I love the trim below the bar and it's no problem to trim while riding. BUT: it's important to pull towards your body, almost parallel to the Depowerline. If you pull even in an small angle to the side, it's almost impossible to trim while riding. AND: make sure that your depower is always pulled ab...
by Harri
Fri Mar 24, 2017 11:29 am
Forum: Hydrofoil
Topic: Is Shinn going to produce his own foil?
Replies: 75
Views: 24983

Re: Is Shinn going to produce his own foil?

Release in april.
Article from the new KW Magazine, looks to me like a deal with ZEEKO, especially the baseplate:

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