Drafting Like a BOSS!

Submitted by: ledzeppeloyd 5 years ago in
95

Drafting at 60 miles an hour on the highway, no big deal.
95
Male 5
@tkd_master - Following (as closely as he was) behind that 18 wheeler reduces wind speeds by 85%
Female 18
things like this are why i hate bicycle riders, especialy the "pro" riders. they are always in the way and doing something stupid.
Male 1,810
@5Cats - would there be enough left to donate ??
Male 15,186
"How can he be going that fast on a bike? Somebody please explain this."

For objects travelling in a fluid at low velocities characterised by a low Reynolds number (Re<1), drag force is roughly proportional to velocity. As velocity increases, so does drag force (Fd), until further acceleration due to propulsion force (Fp) is no longer possible as Fd approaches Fp. Drafting in the burble behind a large moving truck reduces the effective Fd so that the equilibrium point Fd=Fp occurrs at a higher velocity.

John Howard (not the politician) earned a world speed record cycling at 152.2mph while drafting. You wouldn`t want to lose control at that speed in bike shorts.
Male 4,793
How can he be going that fast on a bike? Somebody please explain this.
Male 12,365
[quote]Definitely cool, but the guy is a total idiot. No helmet, really??? A wipe out at those speeds and his brain is splattered all over the highway. It would be bad enough with a helmet, but without it`s just a death wish.[/quote]

A bicycle helmet wouldn`t make any useful difference at that speed.

It might make a difference if the combined speed was much lower. Say, for example, the lorry suddenly slowed to 50. He`d hit it at ~15mph and then a helmet would matter...although he`d probably then hit the road at ~50mph and the helmet wouldn`t matter.

It`s a striking display of how much difference drafting can make to a cyclist, but it`s a damn silly thing to do.
Male 4,891
Why wear a helmet. He doesn`t have much smarts to protect with one. Why is it that bicycle riders feel that they dont have to follow the law? And why does anybody have sympathy when one dies?
Male 40,326
How did he... oh nevermind. Not the brightest move, eh? One little bump and... organ donor!
Male 761
He should have cut in front of the truck so it would have to slam on breaks
Male 174
Is this a suicide attempt?!
Male 1,059
poo. That guy`s crazy.
Male 11,739
Definitely cool, but the guy is a total idiot. No helmet, really??? A wipe out at those speeds and his brain is splattered all over the highway. It would be bad enough with a helmet, but without it`s just a death wish.
Male 28
He could just reach up and grab hold instead of peddling.
Male 3,369
I guess this guy has some sort of deat-wish, not to mention, it kinda defeats the point of getting some EXCERSISE! Anyway, did anyone else think of the movie "Breaking Away" when they saw this?
Male 2,384
Link: Drafting Like a BOSS! [Rate Link] - Drafting at 60 miles an hour on the highway, no big deal.