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Author Topic: Zero: Please employ an Aerodynamicist.  (Read 11744 times)

Richard230

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Re: Zero: Please employ an Aerodynamicist.
« Reply #135 on: April 19, 2016, 08:26:42 PM »

I was just visiting the F800 forum and the GT owners were (and have been ever since the bike came out) complaining about the heat coming off the engine and being dumped onto their legs and crotch.  The current thread is about the possibility of removing the side and lower fairing pieces to allow for cooler legs during the summer heat.  So it looks like you don't want that fairing on your motorcycle   :o

Unless of course it is powered by a much more efficient electric motor that doesn't generate heat as a waste product.   ;)
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

Zorgalouf

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Re: Zero: Please employ an Aerodynamicist.
« Reply #136 on: April 19, 2016, 09:39:41 PM »

Well i don't complain about the heat. Yes, in the summer, it gets warm, but still raisonnable. I tried a Triumph Sprint GT once, in fall, and i was litteraly sweating in my left boot after 15 minutes, and i wasn't even in a city (where you don't have the wind to cool you down), i was driving in the countryside, at 65mph!
But i have a ST, maybe they change a bit something on the GT? (would be suprised).
But of course, on a Zero, would not be a matter!
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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #137 on: April 20, 2016, 04:28:54 AM »

It certainly *does* generate heat as a waste product, just not as much, and not up close between your legs.

That's where the big friggin battery is, which also generates (a little) heat as a waste product.

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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #138 on: April 20, 2016, 04:33:42 AM »

> It would be nice if Zero could offer a faired version like the BMW F800GT.

That kind of fairing is more cosmetic than aerodynamically beneficial.

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sendler

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Re: Zero: Please employ an Aerodynamicist.
« Reply #139 on: April 20, 2016, 07:38:23 AM »

That kind of fairing is more cosmetic than aerodynamically beneficial.
All my bikes have a sport touring type of fairing. Ninja250 with the sport touring windshield, Ninja 650, The R3 will get a bigger sport touring windshield. My CBR250R with the bigger windshield as pictured above, PCX150, Yamaha Majesty. The benefits are many and various. I would never go back to riding a naked bike.
.
Do you have a bike with a fairing?
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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #140 on: June 16, 2016, 07:01:59 AM »

Sorry, haven't visited in a while.

No, no fairing yet.  Working on it.  Installed the happy-trail.com rack today so I can mount a rear tapered storage trunk like yours and Craig Vetters.

I think yours would benefit greatly from rounding those corners at the front.

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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #141 on: June 16, 2016, 07:03:26 AM »

Some good insights here

http://www.tonyfoale.com/Articles/Aerodynamics/AERO.htm

And at craigvetter.com.  But they are more spread out and cronological on Vetter's site.

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Killroy

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Re: Zero: Please employ an Aerodynamicist.
« Reply #142 on: June 17, 2016, 12:51:49 AM »

Some good insights here

http://www.tonyfoale.com/Articles/Aerodynamics/AERO.htm

And at craigvetter.com.  But they are more spread out and cronological on Vetter's site.

If you read your first link, you will get really worried about cross winds and streamlining a motorcycle, but if you read Craig Vetter's site, you will not worry any more.

It should also be noted that in eMotoRacing a Vetter fairing is raced.  Which if you listen to racing old timers is impossible siting Center of Pressure in front of Center of Gravity as the reason. 

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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #143 on: June 27, 2017, 12:08:15 AM »

Resurrecting the thread.

Harlan might have something soon, he showed me a sneak peak : - )

They do good carbon, strong, not at all heavy like the "carbon for looks" guys do.

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clay.leihy

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Re: Zero: Please employ an Aerodynamicist.
« Reply #144 on: June 27, 2017, 01:36:43 AM »



Some good insights here

http://www.tonyfoale.com/Articles/Aerodynamics/AERO.htm

And at craigvetter.com.  But they are more spread out and cronological on Vetter's site.
If you read your first link, you will get really worried about cross winds and streamlining a motorcycle, but if you read Craig Vetter's site, you will not worry any more.
Honda PC800 riders are well-acquainted with "auto lean". The right fairing will actually lean into and counteract cross winds all on its own.



Sent from my Z981 using Tapatalk

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dukecola

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Re: Zero: Please employ an Aerodynamicist.
« Reply #145 on: June 27, 2017, 02:49:04 AM »

Well, the Zeros started selling well when they started looking like the gasoline motorcycles that sell well.

bingo.
most buyers are looking for a motorcycle, and like this one that happens to be electric.. Think of all the Zeros sold from their "let everyone testride everything" policy.

they wouldnt even try it if it looked like a dorkmobile or freak.
Totally agree with you. I wouldnt ride a gas bike if it looked like a dorkmobile either. It's not ego, it's I simply don't like what it looks like. I choose my cars by looks too. I'll suffer with less mileage, I don't care.  A better compromise is a larger windscreen and a mainstream looking fairing. Leave it to the aftermarket to make a capsule for the few people who might want those.
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togo

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Re: Zero: Please employ an Aerodynamicist.
« Reply #146 on: June 27, 2017, 03:08:56 AM »



Some good insights here

http://www.tonyfoale.com/Articles/Aerodynamics/AERO.htm

And at craigvetter.com.  But they are more spread out and cronological on Vetter's site.
If you read your first link, you will get really worried about cross winds and streamlining a motorcycle, but if you read Craig Vetter's site, you will not worry any more.
Honda PC800 riders are well-acquainted with "auto lean". The right fairing will actually lean into and counteract cross winds all on its own.



Sent from my Z981 using Tapatalk

So far, with the big dustbin, crosswinds are not really an issue, except for the big dustbin itself flexing at the top edge, so I've got reinforcement there.


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