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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-26-2021, 06:40 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Aug 2021
Location: Southern Arizona
Posts: 57
Thanks: 7
Thanked 11 Times in 11 Posts
Seating in tandem in vehicles

I never understood why tandem seating in high fuel economy cars isn't more prevalent. The smaller frontal area would help fuel economy. There have been some of these vehicles over the years but they seem to fade away and disappear.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-26-2021, 06:44 PM   #2 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,460

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - CBR600 - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)

Model Y - '24 Tesla Y LR AWD
Thanks: 4,212
Thanked 4,390 Times in 3,364 Posts
The FUV has it, but I wonder the same thing since the Aptera doesn't. Heck, I saw a sailplane on TV that had side-by-side seating.

That said, it does allow the taper to begin sooner, so that may offset some of the inefficiency of side-by-side. There's no way someone could sit behind the driver in the Aptera due to lack of head clearance. The vehicle would have to be longer to accommodate the slick shape.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 08-26-2021, 06:56 PM   #3 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,061
Thanks: 467
Thanked 1,112 Times in 981 Posts
All your glass homebuilt aircraft are side x side so apparently not much of a drag penalty
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
  Reply With Quote
Old 08-26-2021, 07:06 PM   #4 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,571
Thanks: 0
Thanked 1,627 Times in 1,452 Posts
Quote:
Originally Posted by redpoint5 View Post
The vehicle would have to be longer to accommodate the slick shape.
Unless the vehicle could remain as short as a motorcycle, and perpendicular parking could be done too, I wouldn't really hold my breath for tandem-seating to become so common.
  Reply With Quote
Old 08-26-2021, 09:33 PM   #5 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,695
Thanks: 7,775
Thanked 8,584 Times in 7,068 Posts
The traditional shotgun seat?

If the second occupant (typically a spouse) has any input in the decision, it will be a tandem side-by-side.

With the FUV, conversation is possible because both are beneath an elongated dome, which has excellent acoustics. An inside mirror allows for eye contact.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"We're deeply sorry." -- Pfizer

Last edited by freebeard; 08-26-2021 at 10:58 PM.. Reason: edit to be less wrong
  Reply With Quote
Old 08-26-2021, 09:35 PM   #6 (permalink)
EcoModding Lurker
 
Join Date: Aug 2021
Location: Southern Arizona
Posts: 57
Thanks: 7
Thanked 11 Times in 11 Posts
Quote:
Originally Posted by freebeard View Post
The traditional shotgun seat?

If the second occupant (typically a spouse) has any input in the decision, it will be a tandem.

With the FUV, conversation is possible because both are beneath an elongated dome, which has excellent acoustics. An inside mirror allows for eye contact.
  Reply With Quote
Old 08-26-2021, 11:58 PM   #7 (permalink)
EcoModding Lurker
 
Join Date: Aug 2021
Location: Southern Arizona
Posts: 57
Thanks: 7
Thanked 11 Times in 11 Posts
Quote:
Originally Posted by Piotrsko View Post
All your glass homebuilt aircraft are side x side so apparently not much of a drag penalty
Flip side is every two seater sailplane I've flown was a tandem.
  Reply With Quote
Old 08-27-2021, 03:50 AM   #8 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,985

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 1,055
Thanked 545 Times in 436 Posts
I guess the answer lies in the Smart Car. It fits everywhere and looks small.

Ironically going tandem has two benefits if mage long enough. Not only does it have less frontal area but longer less pronounced curves are also more aerodynamic.

But apparently few people would buy a tandem Aptera that's as long as a 15 passenger van.
__________________
  Reply With Quote
Old 08-27-2021, 07:00 AM   #9 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Here is the deal in my area, if a vehicle doesn't occupy the full with of the road as in it's narrow like a motorcycle, larger vehicles tend to bully them over and even run them off the road - seen it several times.

In my old small Porsche 911 I've had people try to do the same thing to me.

Many full sized pickup truck and SUV drivers drive with their tires on or over the bicycle lane stripe because they feel compelled to take up the entire width of the road. If they spot a vehicle not taking up the full width they often take action to take that territory from the narrower vehicle.

I wish that I was just making this up, but sadly I'm not.
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (08-27-2021)
Old 08-27-2021, 10:50 AM   #10 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,895
Thanks: 23,972
Thanked 7,222 Times in 4,649 Posts
tandems

For all the really fine tandem designs offered over the decades, none seemed to ever fire the public's interest, regardless of how great they might have been.
GM, Ford, Mercedes-Benz, and Volkswagen all tried.
James Bede's 100-mpg Lightstar never caught on. Aptera.
In the 1950s, if you bought a Cadillac, they'd give you a Messerschmitt 3-wheeler for 'free.' I've only seen one of those on the road, and only because my Air Force roommate's girlfriend's brother had one.
I started to mockup a 3-wheeled tandem 'mini-hypercar' and soon abandoned the project after experiencing how traffic treated me when riding the motorcycle the car would have been based on.
It was one thing to lay a bike down on Ventura Boulevard commuting to high school in the late sixties, something else just to be run over by a local good-ole'-boy in a pickup, just 'cause I happened to be on the same road.
There is no right to life in Texas.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com