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Twintip hydrofoil?? Any news test??

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Peter_Frank
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Re: Twintip hydrofoil?? Any news test??

Postby Peter_Frank » Tue Mar 21, 2017 3:34 pm

Kamikuza wrote:
Tue Mar 21, 2017 12:55 pm
Starsky wrote:
Mon Mar 20, 2017 11:47 pm
You get spoiled by a foil
Oh how true that is!
Yep, you do 8)

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Re: Twintip hydrofoil?? Any news test??

Postby tegirinenashi » Tue Mar 21, 2017 5:42 pm

Kamikuza wrote:
Tue Mar 21, 2017 4:42 am
You'd have to be very impaired to mistake which way around the LF mast goes...

Drag is critical.
Here is 2016 mast profile which is almost symmetric to cause non negligible drag difference:
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Re: Twintip hydrofoil?? Any news test??

Postby evan » Tue Mar 21, 2017 8:19 pm

Very symmetric indeed.... :roll:
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Re: Twintip hydrofoil?? Any news test??

Postby Kamikuza » Wed Mar 22, 2017 3:41 am

The old one is more obvious. Nit picking though...

You may be right. Of to YouTube wind tunnel Terry on symmetric profiles...

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Re: Twintip hydrofoil?? Any news test??

Postby windmaker » Wed Mar 22, 2017 5:42 am

Not sure how symmetric the Zeeko alu foil mast is but a friend of mine assembled it backwards on his fuselage by mistake and only realized that after riding it as it was vibrating.

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Re: Twintip hydrofoil?? Any news test??

Postby paulOz » Wed Mar 22, 2017 7:54 am

Putting a Zeeko on the fuselage the wrong way is hard to do since the mast fits into a formed shallow recess, the shape of the mast. I suppose its possible if you are paying 'not' attention. Also the Zeeko mast is much less symmetrical for aft than say an LF mast. But hey, I have done stupider things..

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Re: Twintip hydrofoil?? Any news test??

Postby windmaker » Wed Mar 22, 2017 10:12 am

paulOz wrote:
Wed Mar 22, 2017 7:54 am
Putting a Zeeko on the fuselage the wrong way is hard to do since the mast fits into a formed shallow recess, the shape of the mast. I suppose its possible if you are paying 'not' attention. Also the Zeeko mast is much less symmetrical for aft than say an LF mast. But hey, I have done stupider things..
Definitely no recess for the mast on his Zeeko fuselage (the blue one).

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Re: Twintip hydrofoil?? Any news test??

Postby bragnouff » Wed Mar 22, 2017 9:29 pm

There's a small recess (about a mm or 2) on the fuselage of my blue/white Zeeko, which would make it hard to mount the wrong way, or for that matter to do a canard experiment.

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Re: Twintip hydrofoil?? Any news test??

Postby Starsky » Thu Mar 23, 2017 12:26 am

The first generation zeeko alloy doesn't have that.

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Re: Twintip hydrofoil?? Any news test??

Postby borist » Thu Mar 23, 2017 1:35 am

heard on fake news... TT hydrofoil's been cancelled


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