Wing+top down
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Originally Posted by VitaRenovatio' date='Jan 14 2009, 12:41 AM
All this time, I've been running top down. Not like my laptimes really matter ... yet.I heard that if you run at high speeds with top up, you may damage your frame because of the parachute effect. Has anyone experienced anything like this?
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Joined: Oct 2000
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From: Santa Cruz, CA, US
Originally Posted by VitaRenovatio' date='Jan 14 2009, 12:41 AM
All this time, I've been running top down. Not like my laptimes really matter ... yet.I heard that if you run at high speeds with top up, you may damage your frame because of the parachute effect. Has anyone experienced anything like this?
at this.Might want to check up a bit more on fluid dynamics
Sometimes I can't believe the stuff people tell other people.This is very not true. Put your top up and pick up some more speed.
-Ry
Joined: Apr 2008
Posts: 1,840
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From: Salt Lake City, UT
^ Fluid dynamics?! I absolutely hated that class, nevermind that it was at 7:30 in the morning so I never went to lectures. Ugh. I'll take your word for it before I go digging for my old textbooks.
Top up it is!
Top up it is!
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mikegarrison is one among many experts here.
maybe he'll stop by here
All I can tell you is that the outer flowing wind creates lower pressure, which allows the inner cabin air to expand. this pushes the walls outwards. this is easily noticeable with the windows up. I'm pretty sure you can alter some of the material if you reach speeds up to 180mph..
If you reach mach 1 (which is available through aircraft), you will destroy your softtop.
maybe you can try looking into plasticity
if my attempt to explain is fail, i would like to hear an explanation from an expert as well
maybe he'll stop by here
All I can tell you is that the outer flowing wind creates lower pressure, which allows the inner cabin air to expand. this pushes the walls outwards. this is easily noticeable with the windows up. I'm pretty sure you can alter some of the material if you reach speeds up to 180mph..
If you reach mach 1 (which is available through aircraft), you will destroy your softtop.
maybe you can try looking into plasticity
if my attempt to explain is fail, i would like to hear an explanation from an expert as well
Joined: Apr 2006
Posts: 972
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From: Reno, NV
Originally Posted by VitaRenovatio' date='Jan 14 2009, 12:41 AM
I heard that if you run at high speeds with top up, you may damage your frame because of the parachute effect. Has anyone experienced anything like this?
Joined: Aug 2002
Posts: 1,602
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From: St. Louis
The "parachute effect" as I've experienced is simply that the soft top flutters as you reach higher speeds. This is noisy and distracting, not something I need when I'm trying to judge my turn in point at 100+ mph. As for lap times, the soft top creates a more streamlined shape, lowering your drag and increasing your speeds. A hardtop does an even better job at this, while eliminating the fluttering fabric.