Not logged in [
Login
-
Register
]
You Are Not Registered Or Not Logged In
Corsa Sport
»
Message Board
»
Off Day
»
Question for everybody
» Post Reply
Post Reply
Who Can Post?
All users can post new topics and all users can reply.
Icon:
Formatting Mode:
Normal
Advanced
Help
Andale Mono
Arial
Arial Black
Book Antiqua
Century Gothic
Comic Sans MS
Courier New
Georgia
Impact
Tahoma
Times New Roman
Trebuchet MS
Script MT Bold
Stencil
Verdana
Lucida Console
-2
-1
1
2
3
4
5
6
White
Black
Red
Yellow
Pink
Green
Orange
Purple
Blue
Beige
Brown
Teal
Navy
Maroon
LimeGreen
Message:
HTML is Off
Smilies are On
BB Code is On
[img] Code is On
[quote][i]Originally posted by SVM 286[/i] [quote][i]Originally posted by Ian[/i] OK consider this. The planes wheels freewheel, and therefore don't effect forward or backward motion. In fact the only part which the wheels are playing is that they are offering exactly the same force upwards as gravity is offering downwards, therefore the plane doesn't fall on its belly but instead stands a few feet off the ground. Change the wheel arranagement for something that would make the plane hover. Same relation between forward and backward motion - none. Same relation between gravity and holding the plane up - equal. Now in the hovering craft, apply forward thrust to achieve air speed in one direction. Now start moving the ground - your hoving craft doesn't care - the ground does not effect the plane. The plane is free to move thus free to produce lift and take off. The belt doesn't matter. Forget about the belt. [/quote] No Ian, it's the wheels that don't matter. The entire premise is that both belt and craft travel at the same speed. Frictional qualities and wheels etc etc are utterly redundant as the CRAFT and BELT travel atthe SAME speed. If the plane was hovering, of course it could make progress. That is the whole point. Try to forget about the physics of a moving belt and a set of free wheels. The imperative is that a factor opposing the craft, is in equilibrium to it's own generated force. This will prevent the vehicle from progressing from a geographical stand point. The same happens in air. If a craft travelling at 200 mph hits 200 mph head winds the craft makes no progress. It hovers so to speak the same way a Kestrel does when it equalises it's speed against a head wind when eyeing prey. I realy hope this has clarified the point, and apologise for the long winded nature of my reply. [/quote]
Post Options:
Disable smileys?
Turn BBCode off?
Receive email notification of new replies?
This is a long topic, click
here
to review it.