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by tegirinenashi
Fri Sep 11, 2020 3:26 pm
Forum: Snow / Land
Topic: climate change / unpredictable weather/wind
Replies: 1902
Views: 59404

Re: climate change / unpredictable weather/wind

Image

When Cambrian explosion happened on this timeline? Therefore, shouldn't every admirer of "diversity and inclusion" celebrate higher temperatures?
by tegirinenashi
Thu Sep 10, 2020 10:44 pm
Forum: Snow / Land
Topic: climate change / unpredictable weather/wind
Replies: 1902
Views: 59404

Re: climate change / unpredictable weather/wind

All very ironic considering Oregon is currently getting a teaser as to what the climate will look like in the future. The irony is lost on me, because forest fires is not climate. It has been emphasized numerous times that addressing the challenge directly is much more effective than having a unive...
by tegirinenashi
Wed Sep 09, 2020 7:41 pm
Forum: Snow / Land
Topic: climate change / unpredictable weather/wind
Replies: 1902
Views: 59404

Re: climate change / unpredictable weather/wind

Here, in the land of snowflakes (California) the fires are so abundant, that it feels like the end of the world. The solar radiation in the early afternoon is typically 700 watts/m^2, while currently it is in single digits. There is simply no daylight! Now, what is the lesson here, stop doing everyt...
by tegirinenashi
Tue Sep 08, 2020 9:19 pm
Forum: Kitesurfing
Topic: Duotone 2021
Replies: 366
Views: 72348

Re: Duotone 2021

1. Yes i definitely noticed the max flow. 2. If single was good and strong enough they had changed it, don't you think the designers know better then you? 1. After some reflection, I'd suggest that the difference for inflating is negligeable. By the time I finish pumping the kite with standard 6 mm...
by tegirinenashi
Tue Sep 08, 2020 8:29 pm
Forum: Kitesurfing
Topic: Duotone 2021
Replies: 366
Views: 72348

Re: Duotone 2021

Re: Dice marketing clip.

How much weight has been reduced? One obvious weight reduction candidate: get rid of max flow system. Have you really notice any benefit of max flow on 9m kite? What about the double strip connecting struts to the LE, single is not good enough?
by tegirinenashi
Tue Sep 08, 2020 6:26 pm
Forum: Hydrofoil
Topic: Mast length for mixed kite/wing/surf
Replies: 11
Views: 900

Re: Mast length for mixed kite/wing/surf

Are Armstrong foils really that good? Don't buy into the hype: for the price of one Armstrong you can easily have two competent setups: one for kite and one for the wing&surf.
by tegirinenashi
Mon Sep 07, 2020 2:18 am
Forum: Hydrofoil
Topic: the aspect ratio mystery
Replies: 15
Views: 1347

Re: the aspect ratio mystery

There is nothing in the fancily shaped wing that makes it superior to flat wing. It might offset the center of the lift, perhaps, one centimetre, that's it. At the expense of increased drag. Arguably, adding that centimetre to the mast is much more efficient solution. The honest reason for curvy win...
by tegirinenashi
Sun Sep 06, 2020 8:25 pm
Forum: Hydrofoil
Topic: the aspect ratio mystery
Replies: 15
Views: 1347

Re: the aspect ratio mystery

The stall speed is defined mostly by the wing area. This is why airplanes use flaps to extend it. I agree that higher aspect ratio wings are more roll resistant. By how much? Consider laying high aspect wing over low aspect, say Moses 800 https://moseshydrofoil.com/products/wing-800-950-cm2-race-win...
by tegirinenashi
Sun Sep 06, 2020 1:15 am
Forum: Hydrofoil
Topic: the aspect ratio mystery
Replies: 15
Views: 1347

Re: the aspect ratio mystery

PrfctChaos wrote:
Sun Sep 06, 2020 12:13 am
...it could take more effort to make it turn / carve with the wider wingspan...
Why, because of longer wing higher moment of inertia? I remind you that it is not an airplane.

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