--- Begin Forwarded Message --- Date: Thu, 20 Aug 1998 11:50:39 +0100 From: Andy King <[log in to unmask]> Subject: Re: Query about Sectional Aeronautical Chart Symbol <fwd> Sender: Andy King <[log in to unmask]> To: [log in to unmask] Reply-To: Andy King <[log in to unmask]> Message-ID: <9808201150.AA67326@nerc> > > > >What's significant > >about 8062 feet? > > I don't know, but it's pretty close to 2500 meters. > It's more than likely tied in to runway lengths so that airfields capable of handling specific types of aircraft can be easily identified. For example Concorde or a Boeing 747 need a longer runway than a Lear Jet. Andy Andy King Software Development Manager Airsys ATM Ltd Cobham Road Ferndown Industrial Estate Wimborne Dorset BH21 7PP Tel: 01202 864740 Fax: 01202 864700 e-mail: [log in to unmask] --- End Forwarded Message ---