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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-11-2014, 05:49 PM   #341 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 11,742
Thanks: 18,906
Thanked 6,089 Times in 3,733 Posts
Bus/Motor Coach full-boat-tail trailer

This is hijacked from the aerodynamic paradigm shift thread,but is germane to the topic:

We've had 60-foot,articulated buses in the U.S.A. since 1951,so it's a rather mature technology.
A full-monocoque,low-floor construction would allow the low profile body.All the luggage would be in the trailer,allowing about 36-inches of vertical height to be removed without any sacrifice to interior space.
They'd be harder to tip over in a collision,and MPG would reflect the lower CdA.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/

Last edited by aerohead; 01-11-2014 at 05:54 PM.. Reason: add text
  Reply With Quote
The Following 4 Users Say Thank You to aerohead For This Useful Post:
BamZipPow (01-12-2014), beluga (01-19-2014), mikeyjd (06-22-2014), Xist (01-12-2014)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-12-2014, 04:08 AM   #342 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 17,482
Thanks: 4,713
Thanked 5,828 Times in 4,649 Posts
...the aerodynamic paradigm shift thread?

Wouldn't a Tropfenwagen tail be as efficient, factoring in cargo space?
  Reply With Quote
Old 01-13-2014, 07:15 PM   #343 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 11,742
Thanks: 18,906
Thanked 6,089 Times in 3,733 Posts
Tropfenwagen

Quote:
Originally Posted by freebeard View Post
...the aerodynamic paradigm shift thread?

Wouldn't a Tropfenwagen tail be as efficient, factoring in cargo space?
Aerodynamically,it would be pretty slippery.That body,without wheels is Cd 0.14 according to Wolfgang Klemperer,who tested the car (model) at the Zeppelin Werke.If the wheels were brought inside the trailer it would still be slick.
The half-body-based trailer that I drew might have a lower C.G.which John and I thought was important after looking at fatal roll-over bus accidents online. That might be it's only advantage.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following User Says Thank You to aerohead For This Useful Post:
mikeyjd (06-22-2014)
Old 01-20-2014, 07:21 PM   #344 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 11,742
Thanks: 18,906
Thanked 6,089 Times in 3,733 Posts
BamZipPow's trailer

I just wanted to mention to any of you following this thread,that you ought to check out the thread: 'Boat tail project based on a single wheel trailer,' which BamZipPow is currently fabricating and road testing as it evolves.
Bam's seen some interesting numbers and it's early in the game.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following 2 Users Say Thank You to aerohead For This Useful Post:
BamZipPow (02-11-2014), mikeyjd (06-22-2014)
Old 01-20-2014, 07:52 PM   #345 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 9,991

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 32.86 mpg (US)
Thanks: 6,668
Thanked 1,908 Times in 1,450 Posts
http://ecomodder.com/forum/showthrea...tml#post391536
  Reply With Quote
The Following 3 Users Say Thank You to Xist For This Useful Post:
aerohead (01-20-2014), BamZipPow (02-11-2014), mikeyjd (06-22-2014)
Old 02-08-2014, 03:55 PM   #346 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 11,742
Thanks: 18,906
Thanked 6,089 Times in 3,733 Posts
commercially produced 'boat-tail' trailer

Here is a link to a Cobra brand sailplane trailer which might be enhanced (fenders,gap,plan-view taper) to optimize towing efficiency.
http://www.easternsailplane.com/cata...braTrailer.jpg
here's a link to a tiny photo of above trailer in tow
http://www.cobratrailer.com/wp-conte...ds/marokko.jpg
Here's a link to a different trailer built by Cobra
http://home.nwi.net/~blanikam/ba/ima...bra_l23_2..jpg
Here's the 'Coast-to-Coast' EV Range-Extender Trailer for those with extreme range anxiety.(kidding)
https://1a6714e2-a-62cb3a1a-s-sites....attredirects=0
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/

Last edited by aerohead; 02-08-2014 at 04:07 PM.. Reason: add 4th link
  Reply With Quote
The Following 2 Users Say Thank You to aerohead For This Useful Post:
BamZipPow (02-11-2014), mikeyjd (06-22-2014)
Old 06-21-2014, 05:29 PM   #347 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 11,742
Thanks: 18,906
Thanked 6,089 Times in 3,733 Posts
commercial gap-filler

I just ran across this surfing the net
http://img2.eurotransport.de/Spedito...380c-41827.jpg
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 06-22-2014, 04:16 PM   #348 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,189

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 162 Times in 135 Posts
Here's a link to a Mercedes truck/trailer to further delve into trailer design




Aero trailer design study from Mercedes-Benz
Attached Thumbnails
Click image for larger version

Name:	Mercedes-Benz-Aero-trailer-Rear-750x440.jpg
Views:	409
Size:	44.2 KB
ID:	15244  
__________________
Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
__________________



  Reply With Quote
The Following 2 Users Say Thank You to ecomodded For This Useful Post:
aerohead (06-23-2014), mikeyjd (06-22-2014)
Old 06-23-2014, 01:23 AM   #349 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 9,991

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 32.86 mpg (US)
Thanks: 6,668
Thanked 1,908 Times in 1,450 Posts
  Reply With Quote
The Following 2 Users Say Thank You to Xist For This Useful Post:
aerohead (06-23-2014), whatmaycome14 (06-26-2014)
Old 06-23-2014, 02:33 AM   #350 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,189

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 162 Times in 135 Posts
Those are wheel Gowns , you heard it her first , because I just made it up..

__________________
Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
__________________



  Reply With Quote
The Following 2 Users Say Thank You to ecomodded For This Useful Post:
aerohead (06-23-2014), samwichse (06-28-2017)
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Vibe Kammback / Boat tail trikkonceptz Aerodynamics 9 01-19-2014 10:59 AM
Tractor Trailer Boat tail trikkonceptz Aerodynamics 23 12-27-2011 07:19 PM
Trailer Hitch Boat Tail? superchow EcoModding Central 16 04-26-2010 03:35 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com