Isn't that where they put animals that are being shipped?
Walt,
Yes. A little less pressure, and they would quiet down, though...
> I didn't think that holds were pressurised, Bill, but I might have
> been wrong; the www gives all manner of diverse opinions.
Chris,
I was speaking of modern aircraft, the Post-727 boeings and most all Airbus
products. It is, of course, on a plane by plane basis. Remember, passenger
aircraft don't have big doors in the belly to drop stuff, unlike the ones
you're used to flying. That's a job airlines assign to baggage handlers.
> I had thought that pressurising the hold would add unncessary load to
> the engine bleed system, but it is probably also true that airlines
> might wish to use the hold for cargo that needs a sustainable
> atmosphere, both in partial pressure (of oxygen) and in temperature.
The engines are now so large that it can't be a problem.
> But I should have thought that the floor was pretty strong
> nonetheless, to provide the overall structure of the aircraft, and to
> carry the wing roots.
Strong, yes, but making a D-shaped pressure vessel designed to take the
punishment of hundreds of thousands of cycles makes for very heavy
structures. Most of the current aircraft today, I think, have the fuselages
sitting on top of the carry-through structure. I so know that when passenger
aircraft are converted to freight, floor reinforcements are required.
> I hate being wrong .... ;-)
I wonder what that feels like....
Bill Pearce
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