Hood-Windshield Transition

[Frank Lee]

Originally Posted by Joenavy85

I'm going on a roadtrip this summer to California which will require me to put a hitch basket on the back for carrying extra gear. maybe i can design it into a sort of hitch mounted semi-boat tail??

In fact there is such a product on the market.

[Joenavy85]

i've seen the big enclosed hitch mounted pods, but i'm thinking more along the line of building it onto one of the hitch baskets, and have the entire assembly be able to slide back to access the spare tire.

[euromodder]

Originally Posted by Frank Lee

Look up aerohead's posts (he could very well be our best resident aero authority), in about 1/4 of them he states and restates that it is the rear end of the vehicle that benefits the most from aeromods.

Sure, but Phil also has a deflector on the hood of his T100 to reduce the (apparent) windshield angle.

[brucepick]

I think I saw this in a post somewhere - the suggestion that you could build an aero-optimized boattail that would attach to a hitch. So rather than drill and screw to the sheet metal, it mounts and dismounts. And if you get pulled over you say "It's a luggage carrier". Which it will be, because it has a big space inside and a hinged or removable access panel.

Or maybe I thought of it - - who knows. Beyond my modding skills, but it might be a workable idea. Needs a full set of working lights and a license plate mounting location.

[Joenavy85]

how's this look??

[Joenavy85]

Originally Posted by euromodder

Sure, but Phil also has a deflector on the hood of his T100 to reduce the (apparent) windshield angle.

^^^the giant cowl induction looking hood i'm wanting to avoid, just not my taste

[AeroModder]

Originally Posted by Frank Lee

Really?

Can you find that?

Yep.

Originally Posted by aerohead

The belly will help.The diffuser will help but it won't function until everything upstream is clean.So I would recommend you start at the nose and work back.

[Frank Lee]

Oh for ****s sake, he's talking about a diffuser, of course in that location it needs something other than total turbulent chaos to work.

Look at the rest of aerohead's posts; THIS guy is talking about the TOPSIDE.

[Sularus]

Thanks aeromodder, I couldn't remember where I had seen that.
Frank Lee, you are correct in a boattail will help, and the back end of almost every vehicle on the road today is in horrible need to fixing. From what I have gathered on this site though is you will not realize enough potential from a boattail/kammback until you have smoothed out most of the car starting at the front.

[Frank Lee]

Originally Posted by aerohead

t vago,I intentionally left the 'front' of the template simplified to honor pure fluid dynamic minimum drag for sub-transonic flow road vehicle aerodynamics.
Any modern vehicle has a 'good enough' front end for attached flow.--------------------------------------------------------------------------
The importance of the Template is its treatment of the vehicle aft-body.This is where the drag is.
--------------------------------------------------------------------------
As an ecommodder though,the question is,are you going to totally re-design the front of your car,or clean up the back.
Front mods may do little for performance,as I proved to myself at Bonneville.
Rear mods however will make tremendous difference to performance,and I also proved that to myself at Bonneville,and the open road.

Originally Posted by aerohead

The templates emphasis is on a vehicles aft-body,as this is where the lion's share of drag occurs.
Most contemporary automobiles have a
'good enough' fore-body,that good flow from there is assumed.
The template,as described in the first two portions of the thread,reduces the criteria for its use to a single element,height.That's all one needs to create an aft-body with zero separation.

http://ecomodder.com/forum/showthrea...tml#post221932