Quote:
Originally Posted by aerohead
This 'staggered' configuration showed a 10% drag reduction on an 18-wheeler inside NASA's Ame's Research Center wind tunnel at Palo Alto,California.
Magazines like Pop Sci carried photos of the rig and also a colorized pressure histogram of the wake flow.
They're 'quick and dirty' although now,probably eclipsed by the 'Trailer Tail' like Mesilla Valley Trucking and others are running.
In order for the cavity to function it must be airtight.
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Might be related:
Semi Boat Tail & Box Cavity Patent
(Includes several illustrations)
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He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
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