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by tweoistom
Thu May 06, 2021 8:56 am
Forum: Wingsurfing
Topic: Ullman Osprey
Replies: 3
Views: 1411

Re: Ullman Osprey

Thanks everyone, might take the plunge as they're a pretty good price right now and wouldn't mind it for this season.
by tweoistom
Sat May 01, 2021 11:05 am
Forum: Wingsurfing
Topic: Ullman Osprey
Replies: 3
Views: 1411

Ullman Osprey

Just wondering if anyone has one and what they thought of it? Looking to get into wing foiling and am about 75kg so thinking of a 4.7 as my starting point.
by tweoistom
Mon Feb 15, 2021 2:27 pm
Forum: Gear Builders
Topic: Mast stiffness - 3d printed glass reinforced
Replies: 8
Views: 3007

Re: Mast stiffness - 3d printed glass reinforced

Thought it worth an update as I was surprised how much difference a small amount of carbon uni had - 100mm wide tape on each side of strut @ 250g/m^2 has dropped deflection down to 15mm. Which is about the width of the mast. Well worth it. It'll have another layer of glass over the top to keep every...
by tweoistom
Sat Feb 06, 2021 4:56 pm
Forum: Gear Builders
Topic: Mast stiffness - 3d printed glass reinforced
Replies: 8
Views: 3007

Re: Mast stiffness - 3d printed glass reinforced

Cheers, I'll see what materials I have left over after making a new wing as keen not too buy much more resin if I don't need to. Fairly keen to get this mast working just from a point of satisfaction of making the whole lot and learning the process along the way.
by tweoistom
Fri Feb 05, 2021 7:58 pm
Forum: Gear Builders
Topic: Mast stiffness - 3d printed glass reinforced
Replies: 8
Views: 3007

Re: Mast stiffness - 3d printed glass reinforced

Thanks this is exactly what I am after. My original design had a piece of aluminium tube square tube 20x20 running the length with an aerofoil section added front and back with glass reinforcing the lot but wanted to get something a little slimmer. It is still tempting given the cedrus mast though. ...
by tweoistom
Fri Feb 05, 2021 4:23 pm
Forum: Gear Builders
Topic: Mast stiffness - 3d printed glass reinforced
Replies: 8
Views: 3007

Mast stiffness - 3d printed glass reinforced

Hi everyone, I'm hoping for some guidance on what to aim for in regards to the stiffness of a mast I am building. It's 3d printed core with glass reinforcing - approx 900g/m^2 each side. Naturally it has some flex but what I am trying to work out what should I be aiming for. I understand some flex i...
by tweoistom
Tue Jan 26, 2021 8:53 am
Forum: Gear Builders
Topic: Wing profile info for backyard hydrofoil builders
Replies: 238
Views: 106629

Re: Wing profile info for backyard hydrofoil builders

Hi there, I'm looking to make a foil to learn on while being towed behind a tender. I think this realistically won't be able to go much faster than 6-7kts with the outboard it has + drag etc. Ideally the wingspan will be less than 1m as this is the width of the glass fibre I have to make glassing e...
by tweoistom
Mon Jan 25, 2021 6:07 pm
Forum: Gear Builders
Topic: Wing profile info for backyard hydrofoil builders
Replies: 238
Views: 106629

Re: Wing profile info for backyard hydrofoil builders

Hi there, I'm looking to make a foil to learn on while being towed behind a tender. I think this realistically won't be able to go much faster than 6-7kts with the outboard it has + drag etc. Ideally the wingspan will be less than 1m as this is the width of the glass fibre I have to make glassing e...
by tweoistom
Mon Jan 25, 2021 6:03 pm
Forum: Gear Builders
Topic: Wing profile info for backyard hydrofoil builders
Replies: 238
Views: 106629

Re: Wing profile info for backyard hydrofoil builders

Hi there, I'm looking to make a foil to learn on while being towed behind a tender. I think this realistically won't be able to go much faster than 6-7kts with the outboard it has + drag etc. Ideally the wingspan will be less than 1m as this is the width of the glass fibre I have to make glassing ea...
by tweoistom
Wed Feb 12, 2020 2:10 pm
Forum: Kitesurfing
Topic: Naish Slash on Twin Tip
Replies: 6
Views: 1229

Re: Naish Slash on Twin Tip

Not sure about the 12. I absolutely looooove the slash on TT. But I mainly tried the smaller sizes ie. the 7. What are you trying to do? I rarely ride TT anymore so there is that. The slash is ultra stable, predictable, jumps well, but with less initial pull than the pivot. I bet the bigger slash w...

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