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Old 08-08-2015, 09:48 AM   #36 (permalink)
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Originally Posted by Arragonis View Post
Spotted these on a Morrisons supermarket truck here the other day

No info on if it helps yet.
Closing (or blanketing) the tractor - trailer gap could be one of their best appliances IMO

Also see Ulrich Steinlechner's posts with VG in front of the wheel arches: Cw is down - however slightly - by 0,001 despite the added drag of generating vortices.

That's in addition to the seriously reduced lift.
(Together with the nose, they've just about halved aerodynamic lift - that's massive ! )

And as lift induces drag ...
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