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  #124  
Old January 31st 04, 04:40 PM
Spiv
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"D. Patterson" wrote in message
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"Spiv" wrote in message
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"D. Patterson" wrote in message
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"Spiv" wrote in message
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"Steven P. McNicoll" wrote in

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"Spiv" wrote in message
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The 707 was built on the back of its fatigue findings.


Well, if it was, then they designed and built the 707 prototype in

less
than
a month.

Long time from prototype to final plane, of which one of the first

dropped
engines. The results of the Comet investigation were being drip fed

as
it
was progressing. before the final reports many of its finding were

being
implemented in virtually all western aircraft, especially fast

filchers
and
bombers.

The first airliner with a pressurized cabin for high-altitude flights

was
a
Boeing S-307 Stratoliner which took flight on 31 December 1938 and was
subsequently flown by TWA BEFORE the Second World War. By the time the

de
Havilland Comet I was ready to fly with a pressurized cabin equal to

the
reliability of the 1938 Boeing airliner, the Boeing B-707 was ready to

take
flight with the commercial airlines almost two decades after the

Boeing
S-307 was flying with a pressurized cabin. So, the de Havilland Comet

was
almost two decades too late to teach Boeing how to build pressurized

cabins
for commercial airliners. Spiv, go teach your own grandmother how to

suck
eggs.


Who is debating pressurised cabins? The plane that set the scene for

most
modern airliners was the Bristol Brabazon: pressurised cabin, hydraulic
power units to operate the giant control surfaces, the first with 100%
powered flying controls, the first with electric engine controls, the

first
with high-pressure hydraulics, and the first with AC electrics. The
Brabazon was a project of three parts. The Brabzon 111 ended up being

the
Bristol Britannia, which was the finest prop airliner of the time, and

many
say ever. It took all the lessons of the larger Brabazon prototype

which
was scrapped. The larger Brabazon was said to have been too early. the
plane was very big, and few saw a role for immediately post WW2.


You were talking about pressurized cabins when you claimed Boeing had to
learn to build them without metal fatigue by stealing the idea from the De
Havilland Comet I. Boeing and Lockheed were building commercial airliners
which had pressure cabins without metal fatigue problems by 1936-1938,


They were slow prop jobs, not fast jets. Do you know the difference?

while
the De Havilland Comet I metal fatigue reports and re-design occurred in

the
period from 1954-1958. Obviously, the huge fleets of American airliners

and
bombers were built for the prevous ten to twenty years without the metal
fatigue problems experienced by the Bristol Barbazon and the De Havilland
Comet I.


The Brabazon was "huge" and the Comet a jet. Both pioneering planes.

Obviously, the Americans did not need British advice on how to
construct aircraft without metal fatigue problems, but the British

certainly
did need the American advice.


What garbage. The lessons of the Comet were taken notice of by all. That
is does not mean the same design of cabin/frame. You are obviously not from
an engineering background. Were you a pay clerk?

Yes, the Bristol Brabazon did "set the scene for most modern airliners" by
demonstrating what not to do to become the most colossal failure in
airliners.


More garbage. It was the forerunner of "every" modern airliner.

Only one prototype of the aircraft was completed, and it never
flew more than 400 hours in experimental flights, before it was scrapped.

It
was scrapped because it failed to earn an air worthiness certificate. The
Bristol Brabazon failed to earn an air worthiness certificate because it
suffered metal fatigue cracks with less than 400 hours of experimental
flight operation. Go teach your own grandmother to suck eggs.


The wisdom of our resident redneck. I advise you to look into the Brabazon
project instead of babbling balls. It was the forerunner of "every" modern
airliner and too far ahead of its time, being too big. Any problems seen
were rectified and/or noted for future planes.