Bill
They used to do that in RAf C130s: increase the cargo compartment's
altitude to put the cargo to sleep (military cargo ...).
You're probably right about modern aircraft and I haven't kept up to
date.
Chris
~~ >-)-
C M I Barker
Cambridgeshire, Great Britain.
+44 (0)7092 251126
www.threeshoes.co.uk
homepage.mac.com/zuiko
On 14 Aug 2006, at 14:46, Bill Pearce wrote:
> 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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