Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Road Cycling (https://www.bikeforums.net/road-cycling/)
-   -   Top speed = 45 mph? (https://www.bikeforums.net/road-cycling/804366-top-speed-45-mph.html)

RecceDG 03-14-12 11:41 AM


Some sailboats can move faster than the prevailing wind... it is physics and design that allow this.
Yup.

Think of aircraft wings. You can design the wing to produce a certain amount of lift at a certain airspeed by changing the shape of the airfoil.

On a sailboat, the sail is the wing, and the "lift" is rotated sideways to pull the boat forward. What controls the speed is the amount of thrust produced at the given airspeed, not the airspeed itself.

DG

Specialized2k10 03-14-12 12:22 PM

http://i26.photobucket.com/albums/c1...9/85d30c0c.jpg

its not a joke ppl...he didnt have his sail this day.

himespau 03-14-12 12:29 PM

Still I bet it tips over more often than it hits 45.

HokuLoa 03-14-12 01:44 PM

"Harass me on my ride. I dare ya!" :)

Actually, the "joke" isn't the gun. The joke is the sail bike used to convey the emergency personnel. A primary goal of EMS is not becoming a victim yourself. These bike at first glance seem an easy way to do just that!

FWIW, I've seen recumbent sail bikes used to good effect. I sure would prefer a lower center of gravity and maybe 4 wheels...




Originally Posted by Specialized2k10 (Post 13971482)
http://i26.photobucket.com/albums/c1...9/85d30c0c.jpg

its not a joke ppl...he didnt have his sail this day.


cellery 03-14-12 02:08 PM


Originally Posted by Specialized2k10 (Post 13971482)
http://i26.photobucket.com/albums/c1...9/85d30c0c.jpg

its not a joke ppl...he didnt have his sail this day.

-2

Jersey and assault weapon don't match team kit.

Specialized2k10 03-14-12 02:30 PM


Originally Posted by cellery (Post 13971955)
-2

Jersey and assault weapon don't match team kit.

he might be wearing a kevlar vest...i dont think u can match many kits with that


All times are GMT -6. The time now is 07:52 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.