Re: A330-300HGW & new gear

Date:         14 Jul 97 20:27:00 
From:         Alan Wong <Alan.Wong@anu.edu.au>
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Karl Swartz wrote:

> The current wing is designed to accomodate either two relatively large
> engines (A330) or four considerably lighter engines (A340-200/300).
> The A340-500/600 will have four engines, each larger (and heavier)
> than the two on the A330.  That added engine weight alone imples some
> substantial changes.  (The 777 was designed with 100,000+ lbs thrust
> engines in mind from the outset.)

I find it very surprising that the Trent 500 engines on the proposed A340-
500 and 600 (which develop around 50000lb thrust each) will be heavier than
the Trent 700 engines or any of the other engines found on the A330 (which
develop around 70000lb thrust). Unless of course you mean the two Trent 500
engines on each wing are together heavier than a single A330 class engine.