Re: Old 707's

Date:         26 Dec 97 03:28:51 
From:         westin*nospam@graphics.cornell.edu (Stephen H. Westin)
Organization: Program of Computer Graphics -- Cornell University
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hackettNO*SPAM@southwind.net (Kim Hackett) writes:
> The early 707s, the KC-135A with J57 engines, and the B-52G use water
> injection for additional takeoff thrust.  The B-52G has a water tank in
> the fuselage forward of the wing.  The water injection lasts about 45
> seconds.  Not all takeoffs use water injection.  On takeoffs with water
> injection, all of the water must be used, otherwise it would freeze at
> altitude.  I think the water capacity on the B-52G is about 3000 lb, if
> I remember correctly.

I remember reading somewhere that a KC-135 with water injection was
the noisiest aircraft in the world on takeoff. That sounds like an
exaggeration, but certainly the KC-135R with its CFM-56 engines is far
quieter.

--
-Stephen H. Westin
Any information or opinions in this message are mine: they do not
represent the position of Cornell University or any of its sponsors.