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Author Topic: You've been doing car roof boxes all wrong  (Read 695 times)
dan_b
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« on: March 25, 2020, 10:34:35 AM »

https://electrek.co/2020/03/24/tesla-model-3-roof-rack-box-range-efficiency/

Turn it round the "wrong" way and it has lower drag than the "right" way!
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sbchapman
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« Reply #1 on: March 25, 2020, 12:52:00 PM »

Is it also a function of the roof box mounting points? The 'right' way has more overhang over the windscreen, therefore captures more air that will be squeezed between the box and the roof?
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Gareth J
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« Reply #2 on: March 25, 2020, 01:17:34 PM »

I went through this thought process when studying fluid dynamics. Lower drag; win. Potential lift created? Not so good.

I'm guessing manufacturers make this trade off.
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MR GUS
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« Reply #3 on: March 25, 2020, 01:20:03 PM »

Just make it like a twin tip snowboard (same at either end) ..folk are always going to cram stuff in that doesn't fit via P.poor planning.

But he best thing for "packing needs" is a paper & pen to list rationally what you need, stick the paper in the luggage pocket, then work out what you didn't actually need, after all these years i'm still packing in this manner (either not listening to my own advice or improving upon it).

(as well as locating the local launderette that does a wash n' fold service)
« Last Edit: March 25, 2020, 01:24:50 PM by MR GUS » Logged

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