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Forum: Tech Log

30th Nov 2012, 16:17

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

I'm sure these ground effect comments are a wind...

I'm sure these ground effect comments are a wind up.

After all what has the presence of the ground plane got to do with how lift is generated? - as opposed to what happens to the flow round an...

Forum: Tech Log

15th Nov 2012, 18:23

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

Lyman As you suggest jet engines are very...

Lyman

As you suggest jet engines are very much Sir Isaac in action.

With the Harrier in the hover the thrust and hence Sir Isaac are supporting 100% of the weight.

As the nozzles are rotated...

Forum: Tech Log

15th Nov 2012, 15:53

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

When I was at school it was proportional to speed...

When I was at school it was proportional to speed squared.

Wonder when it all changed.

Forum: Tech Log

31st Oct 2012, 15:12

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

Thanks Owen for bringing a touch of reality and...

Thanks Owen for bringing a touch of reality and truth to what I feel has been generally one of the most incorrect threads ever on the subject.

Forum: Tech Log

22nd Aug 2012, 12:06

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

A good point, however what they teach needs...

A good point, however what they teach needs careful consideration.

Being up in the air some way above the ground with an aircraft strapped to your back is essentially a practical problem not a...

Forum: Tech Log

19th Aug 2012, 14:12

Replies: 388

Theory on lift

Views: 99,595

Posted By John Farley

Isn't that the truth. It always makes me...

Isn't that the truth.

It always makes me smile when people get adamant about Newton in discussing where lift comes from. They seem to totally ignore the fact that wind tunnels have been around for...

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