Vw Roof Cross Bars

[Plumbwise]

Might be a stupid question but just ordered the Volkswagen roof cross bars and which way should they face as they are the aero bars (pear shaped)??

 

[Dieseldonkey]

Fat end faces forward. Like an aircraft wing.

 

[Cherokee]

Not wishing to contradict, but the cross bars face thin edge forward into the wind. Fat end forward will attempt to give you lift, ie: lower air pressure to the top, higher air pressure to the bottom. That combined with forward velocity is what makes aircraft fly. See Bernoulli’s Principle on aerodynamics.

So you need thin edge forward to create negative lift, ie: downdraught.

And off course this will keep the wind noise down. Ta.

 

[Pete C]

The roof bars I fitted had markings on them which implied that they should go thin edge forward.

Pete

 

[N58amx]

Fitted thule wingbars
They are fat end forwarded ..
If wrong , they can stay like it

 

[Ads_Essex]

Not wishing to contradict, but the cross bars face thin edge forward into the wind. Fat end forward will attempt to give you lift, ie: lower air pressure to the top, higher air pressure to the bottom. That combined with forward velocity is what makes aircraft fly. See Bernoulli’s Principle on aerodynamics.

So you need thin edge forward to create negative lift, ie: downdraught.

And off course this will keep the wind noise down. Ta.

The modern day equivalent of a whale-tail spoiler on a Sierra XR4i...?

 

[Cherokee]

Now there’s an idea.......