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From: doug@terak.UUCP (Doug Pardee)
Newsgroups: net.aviation
Subject: Re: How do planes fly
Message-ID: <649@terak.UUCP>
Date: Mon, 29-Jul-85 15:07:43 EDT
Article-I.D.: terak.649
Posted: Mon Jul 29 15:07:43 1985
Date-Received: Wed, 31-Jul-85 23:47:39 EDT
References: <726@dataio.UUCP> <171@brl-tgr.ARPA>
Organization: Terak Corporation, Scottsdale, AZ, USA
Lines: 15

> > Sorry, lift is created by two factors; increased air velocity over the
> > upper surface, and the so-called "action = reaction" lift.  The first
> > factor accounts for (in normal aircraft) about 80% of the lift produced.
> > 
> More correctly, lift is caused because the increased velocity over the
> upper surface causes a decrease in air pressure on the top comared with
> the bottom.

Last time I heard, physicists still couldn't agree among themselves on
exactly how an airfoil generates lift.

I think I'll leave the arguing to them.
-- 
Doug Pardee -- Terak Corp. -- !{ihnp4,seismo,decvax}!noao!terak!doug
               ^^^^^--- soon to be CalComp