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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-30-2018, 01:28 PM   #11 (permalink)
Master EcoModder
 
Join Date: Nov 2013
Location: Texas
Posts: 678
Thanks: 20
Thanked 146 Times in 130 Posts
Quote:
Originally Posted by Ecky View Post
I'd say if it's well designed, you might see a ~15-25% decrease in range.
Is it not possible that, if well designed, the trailer might increase the aerodynamics, at least when empty?

  Reply With Quote
The Following User Says Thank You to Angel And The Wolf For This Useful Post:
aerohead (05-30-2018)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-30-2018, 01:37 PM   #12 (permalink)
Karmann Eclectric
 
jray3's Avatar
 
Join Date: Feb 2010
Location: Graham, WA
Posts: 165

Odysseus - '00 Honda Odyssey

MR BEAN - '12 Mitsubishi i-MiEV SE

Karmann Eclectric - '71 VW Karmann Ghia Electric Conversion

BOB - '87 Ford 250 Lariat ext cab
Thanks: 9
Thanked 90 Times in 51 Posts
Model 3 Hitch

https://torkliftcentral.com/x7373-2

Torklift is the best, but they only build them one way, and that is HEAVY, though this M3 hitch has far less material than was needed to mount the i-MiEV. I drilled 10 lbs out of my i-MiEV hitch and then subjected it to heavier duty than most sane individuals would consider for such a car. No problems.
__________________
2012 Mitsubishi i-MiEV, 112 MPGe
2000 Honda Odyssey
1987 F250 Diesel, 6.9L IDI, goes on anything greasy
1983 Grumman Kurbwatt, 170 kW "Gone Postal" twin
1983 Mazda RX-7 electric, 48 kW car show cruiser
1971 VW Karmann Ghia electric, 300 kW tire-smoker
1965 VW Karmann Ghia cabriolet, 1600cc
Have driven over 100,000 all-electric miles!
  Reply With Quote
The Following 4 Users Say Thank You to jray3 For This Useful Post:
aerohead (05-30-2018), MetroMPG (08-23-2018), redpoint5 (05-30-2018), Xist (05-30-2018)
Old 05-30-2018, 01:54 PM   #13 (permalink)
EcoModding Lurker
 
Join Date: May 2018
Location: Missoula, MT United States
Posts: 2
Thanks: 0
Thanked 2 Times in 2 Posts
Thanks. Only issue for me would be reduced clearance in back. My driveway has a dip and high spot that I barely clear now. Maybe I should rent a concrete grinder.
  Reply With Quote
The Following User Says Thank You to jims For This Useful Post:
aerohead (05-30-2018)
Old 05-30-2018, 02:29 PM   #14 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,861
Thanks: 23,922
Thanked 7,207 Times in 4,640 Posts
increase

Quote:
Originally Posted by Angel And The Wolf View Post
Is it not possible that, if well designed, the trailer might increase the aerodynamics, at least when empty?
It won't be until 2020,but the plan for DARKO is to simulate a 1-wheel trailer behind Spirit.
The research done by Jaray,Lay,Kamm,Fachsenfeld,etc. all imply that a 'trailer' could complete the ideal fineness ratio of a fully-boat-tailed vehicle.
__________________
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 (09-10-2018), freebeard (08-23-2018)
Old 06-01-2018, 01:04 AM   #15 (permalink)
Karmann Eclectric
 
jray3's Avatar
 
Join Date: Feb 2010
Location: Graham, WA
Posts: 165

Odysseus - '00 Honda Odyssey

MR BEAN - '12 Mitsubishi i-MiEV SE

Karmann Eclectric - '71 VW Karmann Ghia Electric Conversion

BOB - '87 Ford 250 Lariat ext cab
Thanks: 9
Thanked 90 Times in 51 Posts
Quote:
Originally Posted by jims View Post
Thanks. Only issue for me would be reduced clearance
Sure thing Jim, but you’ll only lose clearance when towing. The receiver tube disconnects from the frame when not in use, which makes it invisible and lighter too.
__________________
2012 Mitsubishi i-MiEV, 112 MPGe
2000 Honda Odyssey
1987 F250 Diesel, 6.9L IDI, goes on anything greasy
1983 Grumman Kurbwatt, 170 kW "Gone Postal" twin
1983 Mazda RX-7 electric, 48 kW car show cruiser
1971 VW Karmann Ghia electric, 300 kW tire-smoker
1965 VW Karmann Ghia cabriolet, 1600cc
Have driven over 100,000 all-electric miles!
  Reply With Quote
Old 08-23-2018, 11:23 AM   #16 (permalink)
EcoModding Lurker
 
Join Date: May 2018
Location: canada
Posts: 6
Thanks: 0
Thanked 8 Times in 6 Posts
Here is what I have come up with.

I found this used trailer. It is 8 feet by 52" so its perfect for moving 4x8 sheets. It has 15" rims with real highway rated (75 mph) tires on it. It is also fairly light. I can move it easily by hand on flat ground. The only drawback is that it is fairly high. I bought a 10 foot boat and the plan is to transport the boat like this, upside down. I will enclose the sides of the trailer to make it weather resistant and more aerodynamic, and I want to build a fairing on the front of the trailer to direct the air around it.

This is just a mock up with the straps holding it in place, I will figure out some way to mount it from the inside.
Attached Thumbnails
Click image for larger version

Name:	IMG_20180818_165747452_HDR.jpg
Views:	63
Size:	25.2 KB
ID:	24717  
  Reply With Quote
The Following 2 Users Say Thank You to heynow9991 For This Useful Post:
aerohead (08-30-2018), Ecky (08-23-2018)
Old 08-23-2018, 11:30 AM   #17 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,005

ND Miata - '15 Mazda MX-5 Special Package
90 day: 42.54 mpg (US)
Thanks: 2,866
Thanked 2,501 Times in 1,547 Posts
Its probably more aerodynamic with the boat turned around.
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
chumly (08-24-2018)
Old 08-23-2018, 04:16 PM   #18 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Normally, I'd agree; it's the conventional wisdom.

But looking at the attachment, I see an opportunity to add a V-shaped shield on top of the hitch. Or maybe blades, as in Vortex Trap below:



There's probably some taper in the hull anyway.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 08-28-2018, 10:57 AM   #19 (permalink)
EcoModding Lurker
 
Join Date: May 2018
Location: canada
Posts: 6
Thanks: 0
Thanked 8 Times in 6 Posts
I got my hitch installed. Heres what it looks like so far.
Attached Thumbnails
Click image for larger version

Name:	IMG_20180827_154601262_HDR.jpg
Views:	28
Size:	71.7 KB
ID:	24738   Click image for larger version

Name:	IMG_20180827_154536235_HDR.jpg
Views:	52
Size:	76.4 KB
ID:	24739  
  Reply With Quote
The Following User Says Thank You to heynow9991 For This Useful Post:
aerohead (08-30-2018)
Old 08-28-2018, 11:29 AM   #20 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,396

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

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

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

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 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)
Thanks: 4,192
Thanked 4,380 Times in 3,354 Posts
Having the top of the trailer open will kill the range. Might get better range by turning the boat around the other way. It would be worth testing.

__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following User Says Thank You to redpoint5 For This Useful Post:
aerohead (09-08-2018)
Reply  Post New Thread


Thread Tools




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