Re: Concorde Question?

From:         kls@ohare.Chicago.COM (Karl Swartz)
Organization: Chicago Software Works, Menlo Park, California
Date:         14 May 94 21:09:51 
References:   1 2 3 4
Followups:    1
Next article
View raw article
  or MIME structure

In article <airliners.1994.1225@ohare.Chicago.COM>, julian@gatwick.sgp.slb.com wrote:>My Concorde book also says that the fuel has 3 uses (balance, cooling and
>propulsion). Most planes only have one use for the fuel although the SR71
>also uses it for cooling.

The longer-range Airbuses as well as the 747-400 (maybe the MD-11 too,
though I'm not sure) also use it for balance.  They can have fuel tanks
in their horizontal stabilizers that help reduce drag at cruise (hence
improve range) by moving the CG back, permitting reduced elevator trim.

--
Karl Swartz	|INet	kls@ohare.chicago.com
1-415/854-3409	|UUCP	uunet!decwrl!ditka!kls
		|Snail	2144 Sand Hill Rd., Menlo Park CA 94025, USA
 Send sci.aeronautics.airliners submissions to airliners@chicago.com