Only Raaaaaaaid would ask if an airscrew screws.. 
 
It doesn't, all aircraft are kept moving by magic, everyone knows that. 
 
Oh, and aliens. 
 
Seriously tho raaid, I thought you were doing a degree in something nautical? 
 
And you're asking how a propeller works?!
		 
		
		
		
		
		
		
		
		
			
				  
				
					
						Last edited by winny; 01-14-2012 at 06:24 PM.
					
					
				
			
		
		
		
	
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