12-17-2015, 05:02 PM
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#21 (permalink)
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Master EcoModder
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Cd 0.235 Toyota
This is the 2012 Toyota FT-bh concept car,which they reported Cd 0.235.
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12-17-2015, 05:30 PM
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#22 (permalink)
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thoughts on 2016 Prius
The length of the aft-body,divided by the actual body height (not including the ground clearance) is 1.5.
From Kamm/Fachsenfeld's FKFS research
,the car (shortest version) would be around Cd 0.25,and then lowered a bit due to the tumblehome,which the FKFS test model did not have.
Compared to the 'template,' the Prius has 37.5% aft-body truncation,which would predict around Cd 0.231,but we'd have to discount this a bit,since the Prius doesn't have as much plan-taper.
This is all at zero-yaw.
Cd 0.24 seems very plausible,especially since no counts are mentioned.
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12-17-2015, 07:51 PM
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#23 (permalink)
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http://www.autoblog.com/2012/03/07/minimalist-toyota-ft-bh-concept-geneva-2012/#slide-201318
That's an interesting headlight assembly. Does the little fin make it an external duct?
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With an unbelievably low, sub-1,800-pound curb weight and a 0.235 coefficient of drag, the FT-Bh uses minimalist design rather than sci-fi technology to achieve 112 miles per gallon.
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12-18-2015, 02:05 AM
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#24 (permalink)
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Cyborg ECU
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Quote:
Originally Posted by aerohead
This is the 2012 Toyota FT-bh concept car,which they reported Cd 0.235.
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Looks a lot like a car a certain Neil Blanchard has been building!
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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12-18-2015, 01:16 PM
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#25 (permalink)
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That has been remarked before.
Toyota should BUILD it!
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12-18-2015, 01:52 PM
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#26 (permalink)
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Master EcoModder
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Well, NeilBlanchard...
Need I say it? |
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12-18-2015, 02:50 PM
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#27 (permalink)
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I would drive that FT-bh.
I would also drive the GM Ultralite.
88mpg, 1400-lb curb weight, seating for four full sized humans? Yes, please.
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12-18-2015, 06:12 PM
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#28 (permalink)
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Ultimate Fail
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Quote:
Originally Posted by elhigh
I would drive that FT-bh.
I would also drive the GM Ultralite.
88mpg, 1400-lb curb weight, seating for four full sized humans? Yes, please. |
Too futuristic looking.
Can we have something a bit last century ? You know ...with a huge grille to cool the oversize combustion engine ? That, and huge heavy, draggy wheels like I used to draw on cars when I was six. 
Um... yes, and we were talking about the Prius ...carry on.
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12-18-2015, 08:29 PM
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#29 (permalink)
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And ironically, the Ultralite is from the last century.
The new Prius looks ridiculous. I liked the way the design was going, and now it looks like it's taken a huge step backward, better Cd numbers be damned.
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12-21-2015, 05:04 PM
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#30 (permalink)
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Master EcoModder
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looks
Quote:
Originally Posted by elhigh
And ironically, the Ultralite is from the last century.
The new Prius looks ridiculous. I liked the way the design was going, and now it looks like it's taken a huge step backward, better Cd numbers be damned.
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I'm in the AeroVironment camp:'I don't care if it looks like a frog as long as it works.' 
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