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Forum: Aerodynamics

11-08-2010, 11:38 AM

Replies: 104

Boat tail mod to my enclosed trailer

Views: 19,407

Posted By Braebyrn

The top angle is because of the angle of the...

The top angle is because of the angle of the trailer design. The length of the tail is 6 ft. and a few inches. In the NASA study somewhere I read that the ideal length is around 2 meters.

If...

Forum: Aerodynamics

11-08-2010, 11:32 AM

Replies: 104

Boat tail mod to my enclosed trailer

Views: 19,407

Posted By Braebyrn

Since last post 183 miles, 14.968 gallons,...

Since last post
183 miles, 14.968 gallons, 12.22 mpg, at 60 mph.
217 miles, 13.852 gallons, 15.66 mpg, at 60 mph. on flat and level.

Here are some more pictures. The license plate is on the...

Forum: Aerodynamics

11-07-2010, 08:55 AM

Replies: 104

Boat tail mod to my enclosed trailer

Views: 19,407

Posted By Braebyrn

Ok, I put 550 miles on since it was built. ...

Ok, I put 550 miles on since it was built. Driving 60 mph, I am getting a solid 2.5 miles per gallon increase. I havent yet been able to drive on level ground, but that is coming today.

Forum: Aerodynamics

11-06-2010, 04:21 AM

Replies: 104

Boat tail mod to my enclosed trailer

Views: 19,407

Posted By Braebyrn

Well a friend and I made a new boat tail setup. ...

Well a friend and I made a new boat tail setup. It has a welded frame and pivots on hinges. I tested it for about 25 miles and came up with 3 to 4 mpg increase, but the long drive is coming up for...

Forum: Aerodynamics

11-02-2010, 11:06 PM

Replies: 104

Boat tail mod to my enclosed trailer

Views: 19,407

Posted By Braebyrn

Ok, left the boat tail off and made a nose cone...

Ok, left the boat tail off and made a nose cone with the thought of taking up the space between the truck and the trailer also. On a semi, it is easy to take up that space since they pivot a lot...

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