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Jumbo
diverted to RAF Lyneham
Swindon Advertiser
19th October 2005
www.swindonadvertiser.co.uk
A Gigantic 180 tonne Jumbo jet, 70 metres in length and
64 metres wingspan, had to stop for the night when permission
was refused for it to land at Heathrow.
The British Airways Boeing 747 was on a training flight
on Monday night, and had to be diverted to RAF Lyneham when
landing clearance was denied at London's busiest airport
Heathrow. It is not an unfamiliar sight in our Wiltshire
skies to see massive jets circling and landing at the active
Wiltshire
airbase.
RAF Lyneham spokesman Sergeant Paul Spencer-White said "We
have a 24 hour set-up and act as an overflow airport for Heathrow,
so the jumbo jet stayed here until this morning"
The regular use by non military airliners can only echo the
true value of Wiltshire's only airbase. It reflects that the
present Government decision to close the base by 2012, following
a Stategic Defence Review in 2003 may have been an oversight
of what potential the air force facilities can provide. Lyneham
has two operational runways, whereas the chosen station on
the Defence Review has a sole runway often closed to anticyclonic
conditions in the Thames basin of Oxfordshire.
The Boeing 747, commonly nicknamed as the Jumbo Jet, is the
most recognized of all modern airliners, and is the largest
passenger airliner in service. It will be surpassed in size,
however, when the Airbus A380 enters service in late 2006.
However, the Antonov An-225 retains the record of being the
world's largest commercial aircraft.
The four-engine 747, produced by Boeing Commercial Airplanes,
uses a two-deck configuration, where the small upper deck is
usually used for business-class passengers. A typical three-class
layout accommodates about 400 passengers while a one-class
layout accommodates a maximum of 600 passengers. The hump created
by the upper deck has made the 747 a highly recognizable icon
of air travel.
The 747 flies at high-subsonic speeds (typically 0.85 Mach
or 565 mph or 909 km/h) and features intercontinental range
(8,430 statute miles, or 13,570 km, for the 747-400 version).
In some configurations this is sufficient to fly non-stop from
New York to Hong Kong - a third of the way around the globe.
In 1989, a Qantas 747-400 flew non-stop from London to Sydney,
a distance of 11,185 miles (18,000 km), in 20 hours and 9 minutes,
although this was a delivery flight with no passengers or freight
aboard.
By May 2005, a total of 1382 aircraft have been built or ordered
in various 747 configurations, making it a profitable product
for Boeing.
Jumbo Facts and Trivia
- A 747-400 has six million parts (half of
which are fasteners)
- At the time of its launch, the term "jumbo
jet" had already been coined by the media to describe
a general class of new wide-bodied airliners then being
developed, including the Lockheed L-1011 TriStar, which
the RAF has stationed at neighbouring RAF Brize Norton,
and Douglas DC-10. Boeing was quite keen to discourage
the media and the public using the term "jumbo jet" for
the 747, but their efforts were in vain, and now the term
is synonymous with the 747.
- Due to its immense length, there is a
very small flexure of the fuselage in flight. This effect
was not anticipated in the design of the autopilot on early
models, and so there is a very slow oscillation in yaw
when flying on autopilot. This was first discovered on
an overseas flight to the Paris Airshow, when some of the
people in the rear got air sick. Upon return, the plane
went through a shake test for two weeks to sort out the
problem and adjust the yaw damper system. This solved the
problem and the effect is now too small to be noticeable
by passengers.
- Just one engine on a 747 produces more
thrust than all four engines on an early model Boeing 707
combined.
- When pressurized, a 747 fuselage holds
over a ton of air.
Did you know: The Antonov
An124 has landed
at RAF Lyneham in February 2003, on the orders of an Abu
Dhabi sheikh. The aircraft was chartered by his highness sheikh
Tahnoon Bin Mohammed Al Nahayan, the ruling representative
of the Eastern region of Abu Dhabi, to carry the aircraft and
equipment of the Utterly Butterly wing-walking team. The barnstorming
team has been invited by the sheikh to perform at Al Ain 2003,
one of the largest outdoor festivals in the Middle East. |