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Last Updated: Sunday, 1 May, 2005, 08:02 GMT 09:02 UK
UK Skylark rocket launch delayed
The Skylark programme has run for 50 years (EADS-Astrium)

The final launch of a hugely successful 50-year-old British space programme has been delayed due to high winds.

The last Skylark rocket was due to blast off on Sunday morning but experts have been forced to delay the flight until Monday at 0530 BST.

The vehicle will be the 441st Skylark to launch when it sets off on its historic journey from Sweden.

The Skylark, which first flew in 1957, has been used to take a huge range of scientific experiments into space.

It lost official UK government support in the late 1970s but sufficient motors had already been produced to continue research flights.

Hugh Whitfield, of Sounding Rocket Services Ltd, which has operated the Skylark vehicles since 1999, said a test launch on Saturday had "gone smoothly".

He told the BBC News website: "This is a 50-year-old programme - it began in 1955 and we will conclude in 2005.

"We should be immensely proud of the contribution to science that Skylark has made and it is a testament to the skill of British engineers that the programme has lasted half a century.

"The Skylark is a classic. Back in the '50s, Britain was very advanced on the capabilities of aircraft and they were coming up to launch satellites; the country was Europe's leading light and we were up there with the Americans and Russians."

Young start

The final mission, known as Maser 10, has been organised under the European Space Agency banner and will carry five experiments.

They include a biological investigation of the muscle protein actin and a study of turbulence in evaporating liquids.

The tests will experience about six minutes of "weightlessness", allowing their scientists to examine the physical processes at play that would otherwise be masked by the effects of gravity in a surface laboratory.

Skylark is loaded for launch, BBC
The final Skylark rocket will carry five experiments
The Maser 10 payload will be recovered by helicopter after it has parachuted back to Earth.

Early development work on Skylark was done at the Royal Aeronautical Establishment at Farnborough and the Rocket Propulsion Establishment at Westcott.

The vehicle made its maiden flight in the International Geophysical Year, at Woomera, in Australia - where many British rockets were tested in the days when the UK had serious launch ambitions of its own.

The rockets became very popular with young scientific researchers, as it was possible for a PhD student to design a space experiment, launch it on a Skylark vehicle and then write up the results in just three years.

"The main thing it has given is a lot of experience for engineers and scientists who have gone on to bigger and better things," commented John Turner, a design engineer who worked on Skylark from the mid-'60s. "It was the place where people cut their teeth in aerospace."

American future

All manner of investigations have been done on Skylarks: from X-ray astronomy to crystal growth, from Earth-observation to the study of how frogs eggs are fertilised.

But despite its success, the UK government ended public funding for the programme in 1977. The expectation was that university departments would want to fly their experiments on the soon-to-launch American space shuttle instead.

Skylark 7, BBC
The Skylark 7 will take its payload to an apogee of 250km
At that time, it was anticipated the new US orbiter would make frequent trips into space, giving researchers ample space and opportunity to run their tests under much longer conditions of microgravity.

"It would be very nice if Britain could compete in the space race, but we are now just a bit player in a European agency. We could have been there, but we let the opportunity go," said Mr Whitfield.

The Skylark programme has persisted despite being shoved from one home to the next.

The commercial operation was initially handed to British Aerospace, then to Matra Marconi Space, before finally coming out into the small, privately run Sounding Rocket Services company based in Fishponds, Bristol.

The first Skylark was capable of lifting 45kg to 150km. The final variant, Skylark 12, could carry a 200kg payload to 576km.

"The 12 was a three-stage vehicle and was the most powerful in the series," explained Mr Whitfield.

"We actually did a launch in Brazil which reached an apogee of 1,000km. It was a light payload, mind; a German experiment to look at a Southern Hemisphere aurora."

The Skylark 7 that will be used for the final launch will take its payload to an apogee of 250km. It will be powered by a "Raven XI" main-stage and a "Goldfinch" boost-stage motor.

SRS will in future launch the American-built Oriole range of sounding rockets. The Oriole is a slightly larger rocket than the Skylark and its newer design offers greater capability despite being more expensive.

Maser 10 mission diagram (BBC)

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