Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-11-2009, 11:04 AM   #1 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,891

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,423
Thanked 2,914 Times in 1,827 Posts
John Britten: the ultimate "modder"?

John Britten designed and built these amazing machines: they have (at least) 5 major design elements: "skin & bones" carbon fiber wheels, beam suspension with no "stiction" and controllable geometry, 4-valve hand cast stressed member engine in frame-less chassis, unique aerodynamics (dubbed "torpedo over blade"), and the fully ducted cooling system that made this narrow design possible. It weighs just 145kg (320 pounds).

John Britten on Wikipedia





These are especially delicious for us aspiring engineering types!











Front view showing cooling intake scoops:


Profile/side view showing all the goodness (carbon fiber wheels and beam suspension, stressed member engine, unique aerodynamics):


Rear cooling exhaust vent:

__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/

Last edited by NeilBlanchard; 12-11-2009 at 11:30 AM..
  Reply With Quote
The Following 2 Users Say Thank You to NeilBlanchard For This Useful Post:
NachtRitter (10-12-2010), thatguitarguy (12-11-2009)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-12-2009, 05:22 AM   #2 (permalink)
Master EcoModder
 
vtec-e's Avatar
 
Join Date: May 2008
Location: Ireland
Posts: 507

De Yaris - '04 toyota yaris T2
90 day: 69.55 mpg (US)
Thanks: 111
Thanked 32 Times in 22 Posts
I saw that bike on display in a museum in Wellington, NZ. Very impressive considering it was a custom bike in every sense of the word. Way ahead of its time. Here is a link providing some tech spec: Britten V1000 motorcycle - Collections Online - Museum of New Zealand Te Papa Tongarewa

ollie
__________________
  Reply With Quote
Old 12-12-2009, 05:36 AM   #3 (permalink)
Dartmouth 2010
 
SVOboy's Avatar
 
Join Date: Nov 2007
Location: Hanover, NH
Posts: 6,447

Vegan Powa! - '91 Honda CRX DX
Team Honda
90 day: 66.52 mpg (US)
Thanks: 92
Thanked 119 Times in 87 Posts
Send a message via AIM to SVOboy Send a message via MSN to SVOboy Send a message via Yahoo to SVOboy
I like the look of those wheels, but aren't the hands still sticking out in the airflow?
  Reply With Quote
Old 12-12-2009, 06:15 PM   #4 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,891

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,423
Thanked 2,914 Times in 1,827 Posts
Hi Ben,

Maybe a little, but there is a bit of a "pocket" created by the fairing. I had a BMW K75S:


(that is NOT me...)

This fairing protected my hands pretty well and the air off of the top of the windscreen hit me in the middle of my face -- I'm 6'-4", so I am taller than this fellow. I had to chop off about 1 1/2" from the top so that the air hit me in the lower part of my neck, and the rumbling noise was MUCH better.
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 12-15-2009, 06:15 AM   #5 (permalink)
Curious....
 
koihoshi's Avatar
 
Join Date: Jun 2008
Location: Oregon
Posts: 98

DoesNotHaveANickname - '99 Ford Escort ZX2
Thanks: 1
Thanked 0 Times in 0 Posts
That's an awesome bike and a very cool story!
  Reply With Quote
Old 12-15-2009, 08:29 AM   #6 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
As awesome as it would be to own one, I think I'd end up killing myself on it. I don't think I could resist lifting the front end up a little bit every time I hit the throttle, and that's what got me in trouble the last time I had a bike years ago... that and just speed in general.

That's why I bought a 180cc...
__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 12-15-2009, 09:56 AM   #7 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,891

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,423
Thanked 2,914 Times in 1,827 Posts
Hi,

I'm thinking that beyond the bike, which is awesome -- the fact that such an amazing machine was conceived of, designed, built from scratch in 11 months, and have it perform at such a high level is quite inspiring!

What sort of things are possible if one wants to build an uber-efficient EV in a backyard workshop?
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 12-15-2009, 11:14 AM   #8 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location:
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
the bikeness helps though, as it sweeps away most delusions about safety and the nannies don't even bother tearing it down based on its differences from other bikes.
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 12-15-2009, 04:41 PM   #9 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,891

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,423
Thanked 2,914 Times in 1,827 Posts
Some of the things that John Britten (and a small group of friends and associates) accomplished in ~11 months:

Redesigned his V1000 v-twin four valve engine to be an 1100cc, hand cast all the metal parts, heat treated & machined everything, flow tested, and on the dynamometer -- where it produced 170BHP.

Designed and build a front and rear girder suspension out of carbon fiber, that bolt to the engine.

Designed the aerodynamics of the whole motorcycle and cooling system, that has an intake port on the nose of the fairing, is ducted through to the radiator which is under the tail section -- that worked the first time. All this bodywork and the seat subframe are fabricated out of carbon fiber, natch!

Designed and built carbon fiber wheels, using a unique structural scheme, that is referred to as "skin & bones".

Designed and programmed a custom computer system that recorded all the important data from the engine (unique in motorcycle racing at the time).

The list of things that they did NOT build from scratch:

brakes
shocks/springs
transmission (sourced from Suzuki, IIANM)
battery and sparkplugs and other assorted electrical components
tires
[Edit: cylinder sleeves ]

Totally amazing, really! I see a lot of parallels between the Britten and the Aptera...
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/

Last edited by NeilBlanchard; 12-15-2009 at 09:30 PM..
  Reply With Quote
Old 12-15-2009, 04:57 PM   #10 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Neil -

The project and finish times are nothing short of amazing, that's for sure. I'd be wifeless if I attempted anything remotely similar, the time invested.

__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Game's on! Ultimate Ecomodder Fuel Economy Challenge MetroMPG Events & Meet-ups 297 06-15-2014 07:21 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com