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Leading The Way
Lindstrand Balloons lead the way in aerospace technology and are
working closely with the NASA Goddard Space Flight Centre in
Washington and the European Space Agency in Holland.
To date the
Lindstrand team have designed, manufactured and type-certified
hot air balloons currently operating in 48 countries. The
company has produced the largest ever hot air balloon that was
73,600m³
and the largest ever manned super-pressure balloon 36,086m, the
largest ever thermal airship 8,500m³
together with the GA-42 helium airship 26m long x 1,190m. In
excess of 100 hot airships and gas balloons both helium and
hydrogen capable have been produced.
It is the expertise of the
Lindstrand team which pioneered the development of the world’s
first thermal airship fabric, this is now the aviation industry
standard. Much of the machinery used at Lindstrand Balloons is
unique and is largely developed in-house. We offer a
comprehensive machine shop and full electronic/electrical
workshop. Lindstrand Balloons has designed, developed and built
specialist machinery for projects which include the most
sophisticated manned balloon ever built, the ICO Global Round
The World Balloon. |
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B1-test Balloon
Lindstrand Balloons built a 14,000m³
super-pressure balloon that carried a 47Ghz test transmitter in
order to investigate propagation characteristics at 70,000ft.
This balloon was equipped with amorphous silicon solar cells and
had full-date logging for documenting heat building up inside
the balloon. |
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HALE Study (High
Altitude Long Endurance Programme)
In December 1998 the European Space Agency (ESA) awarded
Lindstrand Balloons a design study contract for a geostationery
stratospheric unmanned airship. |
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Balloon Developments include:
The world’s first type-certified thermal airship, first use of
silicone impregnated balloon fabrics, first use of a synthetic
envelope material (approved for hydrogen gas), first solar
balloon, first sustained manned flight in the Jetstream and the
first balloon capsule with active pressurisation.
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Stratospheric Platforms (Absolute Hot
Air Altitude record)
This record was set on 6th June 1988 over
Laredo, Texas, and the maximum altitude for just under 65,000ft
and has never been challenged.
The balloon
envelope had a volume of 17,000m³
and was manufactured from aluminised PET film laminated to
ripstop nylon fabric. The reason for the aluminised outer layer
was to reduce emissivity particularly at high altitude where the
radiation losses would have been enormous. The fuel used for
the burner was a mixture of propane/hydrogen and
isopropylnitrate. The burners were specifically built for the
project and were tested at the LUCAS Aerospace high altitude
chamber at Burnley. The capsule was built from aluminium and
the internal atmosphere was 7,500m with the pilot using 100%
oxygen all the time and with a partial pressure suit as an
emergency back-up.
Sky Station
LBL's involvement with Sky Station goes back
to early 1995 and was contracted as their sole platform
supplier from November 1996 to June 1998.
In the early beginnings of the co-operation Sky Station
worked on a small-scale model of Dr. Wong's Corona Ion
engine. The airship concept was an unworkable twin hull
design linked with a large flat section. LBL
immediately advised Sky Station that this was totally
unworkable and suggested a conventional single hull
driven by a propeller/electric motor. It was evident
that the Corona Ion engine would never deliver the
required thrust.
In November 1996 LBL signed a contract with Sky Station
as their exclusive platform supplier and for the
production of the initial batch of airship hulls. The
first job within this contract was to build a test
balloon with a super-pressure design intended to fly at
70,000ft, but Sky Station run out of money before the
test was completed. This balloon is now in storage at
LBL, Oswestry.
Due to Sky Station's lack of money LBL more or less
ceased to work with Sky Station but the contract
remained in force until June 1998 when it was cancelled
by Sky Station. |
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ULDB – NASA
The ULDB programme (Ultra Long Distance Balloon)
was initiated by NASA Goddard Space Flight Centre in
Washington in order to prolong the flight time for
scientific balloons by introducing upper-pressure
technology. |
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NOFO
In 1993 Lindstrand Balloons supplied a tethered
aerostat to the Norwegian Oil Spill Recovery
Organisation which carried an on-board camera, this
enabled pictures to be relayed back to the Captain of
the ship, to allow him to survey the affected area. |
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Even from the days of the
giant Zeppelins people have been talking about using airships to
transport cargo.
The problems have always been that most standard aviation cargos
have been transported using heavier than air machines . Whilst
these are expensive they have the advantage of being very quick
and today most peoples expectations are of receiving a courier
express package in one or two days, almost anywhere in the
world.
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At
the other end of the scale is sea freight. The main advantage of
sea freight is that weight and size of shipment is rarely a
problem. However the biggest hindrance here is the time in
shipping.
Cargolifter have identified that there is definitely a market
for "medium" speed delivery service of large, heavy, high value
items. Consequently they have embarked on a very ambitious
process of creating a new airship in order to fulfil this market
requirement. |
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The main Cargo
lifter CL 160 will probably have a payloads volume capability of
50m x 8m x 8m. The airship is envisaged as being 270m long,
making it the largest aircraft ever built. Structurally it is
being designed using the best aspects of its forerunner
airships, whilst utilizing the benefits that can be achieved
from advances in modern materials.
Obviously no design organization would entertain building an
airship of this size without proving some of the more critical
technologies at a more modest size. |
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For an FFTU, which
is much smaller 1050 cubic metres volume, around 30m long
airship. The airship which is known as Joey, will be used to
demonstrate, test and prove the following technologies:-
- Inter-relationship between
rigid keels and non-rigid envelope.
- Use of individual gas bags
within an outer structural skin.
- Performance of differing
gas bag material
- Individual and co-ordinate
control of multiple thrust motors and bow stern thruster
units.
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Obviously the benefits of the Joey envelope extend into
operational and logistical research as well, including:
- Pilot training
- Ground Handling
- Airship positioning
control
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Lindstrand Balloons Limited were chosen as the most suitable
company to design, in liaison with Cargolifter Development GmbH
the main outer skin structure for the Joey airship. |
The outer skin is the main
structural part of the airship and is the one component upon
which all others are mounted. This means that close co-operation
was required between five European companies in order to achieve
the desired goals.
The Joey envelope was delivered in May for the first fitting
procedure of all exterior hardware, including keel, fin
structure, nose cone and gondola. The envelope is now back with
Lindstrand for the second stage construction. We count ourselves
fortunate that we have the opportunity to collaborate on this
major new airship construction project.
For more information visit the
CargoLifter website. |
Global Challenger
A balloon by definition cannot be driven but has to rely
entirely on the wind as its mooring force. The strongest winds
are in the tropopause and are called ‘Jet streams’
The technique to place a balloon inside the jet stream was
initiated by Richard Branson and Per Lindstrand during the
transatlantic hot air balloon crossing in 1987 and later
perfected during the first Transpacific hot air balloon crossing
in 1991. The latter flight averaged 127 knots from take-off in
Japan to landing in Canada with peak speeds over 200 knots
For ultra long endurance balloon
flights in the troposhpere the Roziere principle reigns
supreme. This consists of a helium cell located on top of a hot
air cell. The envelope stands 68m tall and has a helium cell
with a volume of 36,086m3 which will result in a
lifting capacity of 14 tonnes at cruising altitude. Altogether
the envelope will use over 24kms of fabric and film and it is
joined by thermal welding on machine tools specially constructed
for this purpose. This is the largest super-pressure balloon
ever built and the largest man carrying fabric balloon. The
construction time for the envelope is three months and total
envelope weight is 2.5 tonnes.
In December 1998 the ICO Global
balloon flew for 71/2 days and covered 20,500kms in a flight
from Morocco to Hawaii covering 60% of the world's
circumference. The flight was terminated due to a weather
trough hindering further flying and landed with 6 days of fuel
remaining. |
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Sky Dive from Space
LBL is developing a project involving a parachute
descent from a gas balloon where the skydiver will exit at
130,000ft for a free fall to 15,000ft when he will deploy his
parachute for landing. All initial engineering work has been
completed and the Russian space suit designer Zwezda has
designed an appropriate space suit for this project. LBL will
design and build all other equipment. The gas balloon envelope
volume is 425,000m³
and is a zero pressure design built from polyethylene film.
More
details to follow |
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