Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-24-2019, 01:06 AM   #211 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 7,318
Thanks: 0
Thanked 754 Times in 667 Posts
The shape of the rear fenders of this Argentinian Falcon caught my attention. Not sure how it could improve aerodynamics.


  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-24-2019, 01:12 AM   #212 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,506

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 69
Thanked 294 Times in 205 Posts
Those are nacelles for jet exhausts, plugged with tail lights. See the Ford show cars and Galaxie for the originals.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
  Reply With Quote
Old 02-25-2019, 11:10 PM   #213 (permalink)
Primer is still paint!
 
ChopStix's Avatar
 
Join Date: Aug 2015
Location: box by the river
Posts: 484

85 Chevy Pickup C10 - '85 Chevy C10
Thanks: 76
Thanked 102 Times in 77 Posts
I like it!

Attached Thumbnails
Click image for larger version

Name:	85.jpg
Views:	166
Size:	57.6 KB
ID:	25570  
  Reply With Quote
Old 02-25-2019, 11:54 PM   #214 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 13,903
Thanks: 3,415
Thanked 4,574 Times in 3,642 Posts
Quote:
Originally Posted by Bicycle Bob
Those are nacelles for jet exhausts, plugged with tail lights. See the Ford show cars and Galaxie for the originals.
I took Driver's Education in an 1960 4-door.


http://www.carstyling.ru/en/car/1954_ford_fx_atmos/


1955 Ford Mystere - Concepts

Looking around for that, I discovered the 1956 Ford Thunderbird Mexico.
1956 Ford Thunderbird Mexico - Concepts
It never progressed beyond a 3/8ths scale model.

Quote:

As [Alex] Tremulis put it: "I have always considered the Mexico as a milestone. It opened the door to the windtunnel for the first serious investigation of the new aerodynamic art of the automobile. For many years when I thought I was on the verge of selling a wind tunnel program I was always shot down with arguments such as - 'But Alex, remember the Chrysler Airflow'. Some even referred to it as the 'Airflop'. Others presented arguments such as....
Alex is foreshadowing Luigi Colani.


What do you make of this?



Sort of a sliding sunroof over the back seat and a T-top over the front?


http://www.carstyling.ru/en/car/1991...agen_vario_ii/
__________________
.
KONOSUBA -God's blessing on this wonderful world!
2019-11-12
_________________

Last edited by freebeard; 02-26-2019 at 12:08 AM..
  Reply With Quote
Old 02-26-2019, 09:57 AM   #215 (permalink)
Master EcoModder
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 758
Thanks: 29
Thanked 177 Times in 150 Posts
Looks more like a partial roll cage gone Hollywood

I'm not old enough, but did those 50's tailfins do anything in a bad crosswind?
__________________
2000 F250 7.3 CC 20+ MPG @ 10000 #
2013 Golf tdi 47.5 mpg neutered, 1500 mi beer run
1988 Ranger EV Volt batts>> 18,000 MPG and climbing. Rag overhaul.
  Reply With Quote
Old 02-26-2019, 01:35 PM   #216 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 13,903
Thanks: 3,415
Thanked 4,574 Times in 3,642 Posts
The result was variable, Chrysler corp (after 1956) had the most effective ones. 1946 Cadillac and 1959 Chevrolet not so much.

much goodness: Just A Car Guy: aerodynamics

The 2nd entry, from Oct 2018, has an Ecomodder video.
__________________
.
KONOSUBA -God's blessing on this wonderful world!
2019-11-12
_________________
  Reply With Quote
Old 02-26-2019, 05:00 PM   #217 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,585

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,530
Thanked 3,367 Times in 2,121 Posts
Quote:
Originally Posted by Piotrsko View Post
I'm not old enough, but did those 50's tailfins do anything in a bad crosswind?
I'd predict no noticeable difference on my '59 if the fins were lopped off.

Speaking of which, I've always been confused about the mechanism for the BAT cars' aero success regarding their fins. I can't figure how they work to lower drag and actually it seems to me that since vehicles are operating in crosswind conditions almost always, those huge fins would add sail area and leave trailing wakes. So like the '59, I wonder how they'd test sans fins.

Speaking of testing, perhaps the published Cd figures are erroneous? Bad figures have been put out there more than once...
__________________


  Reply With Quote
Old 02-26-2019, 07:09 PM   #218 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 13,903
Thanks: 3,415
Thanked 4,574 Times in 3,642 Posts
Isn't that a Chevrolet? The slabsided Mopars and Cadillacs OTOH:


https://heacockclassic.com/wp-content/uploads/8-1-1.jpg

I compare the early BATs to the Sunbird/Road Runner with the towel rack wing. That's a high-aspect airfoil with a lift-reducing wing. The BATs had no trunk lid clearance problems and less downforce. Luigi Colani would roll those fins in just because he could, and I think the slot midspan has some effect in crosswinds. Any vortexes shed are held closely into the wake.
__________________
.
KONOSUBA -God's blessing on this wonderful world!
2019-11-12
_________________
  Reply With Quote
Old 02-26-2019, 11:39 PM   #219 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,506

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 69
Thanked 294 Times in 205 Posts
Quote:
Originally Posted by Frank Lee View Post
I'd predict no noticeable difference on my '59 if the fins were lopped off.

Speaking of which, I've always been confused about the mechanism for the BAT cars' aero success regarding their fins. I can't figure how they work to lower drag and actually it seems to me that since vehicles are operating in crosswind conditions almost always, those huge fins would add sail area and leave trailing wakes. So like the '59, I wonder how they'd test sans fins.

Speaking of testing, perhaps the published Cd figures are erroneous? Bad figures have been put out there more than once...
AFAIR, the primary purpose of the BAT fins was to manage surface area vs distance from the front. That turned out to be a dead end.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
  Reply With Quote
Old 02-27-2019, 12:47 AM   #220 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,585

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,530
Thanked 3,367 Times in 2,121 Posts
To move the center of pressure back?

Forgot to post earlier that I was also wondering- if they were on to something- why there were no successors.

__________________


  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com