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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-13-2015, 05:27 PM   #1 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,191
Thanks: 179
Thanked 1,521 Times in 1,122 Posts
40 CFR 86.129-80 Road load power...

For Aerohead et al: https://www.law.cornell.edu/cfr/text/40/86.129-80

...especially this graphic & table:



Table I—Protuberance Power, P. Versus Total Protuberance Frontal Area, Ap

Ap (sq. foot) P (horsepower)
_____Ap <0.30 0.0
0.30 Ap <0.60 0.40
0.60 Ap <0.90 0.70
0.90 Ap <1.20 1.00
1.20 Ap <1.50 1.30
1.50 Ap <1.80 1.60
1.80 Ap <2.10 1.90
2.10 Ap <2.40 2.20
2.40 Ap <2.70 2.50
2.70 Ap <3.00 2.80
3.00 Ap ______3.10



NOTE: CFR = Code of Federal Regulations.


Last edited by gone-ot; 12-13-2015 at 06:27 PM..
  Reply With Quote
The Following User Says Thank You to gone-ot For This Useful Post:
aerohead (12-14-2015)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-14-2015, 04:50 PM   #2 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 10,892
Thanks: 17,225
Thanked 5,822 Times in 3,512 Posts
protuberance

It looks like we could construct a Cartesian grid from the posted data,from zero,to 3.0 sq-ft frontal area of the greenhouse,then extrapolate for larger 'roofs', picking off their 50-mph road load from the grid.
Months ago,I was working on a side elevation drawing of this illustration,which included the wheels,to evaluate the aft-body contour based upon overall height.
It's buried somewhere in the rat's nest.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following User Says Thank You to aerohead For This Useful Post:
BamZipPow (12-14-2015)
Reply  Post New Thread


Thread Tools




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