内容摘要：and end at the now-demolished Olympic Stadium's royal box. At 26.2 miles, it was the longest marathon since the modern games began.

and end at the now-demolished Olympic Stadium's royal box. At 26.2 miles, it was the longest marathon since the modern games began.

"Some of the war planes in this hangar are very, very big, including the Vulcan and the Valiant," Mr Picken said."It can take a while to dust them because, after a year of leaving them, there's a lot of dust that gathers on these planes."

Mr Picken said he had been working at the site for six years and also helped to inspect lifting systems used to suspend the planes.He described the cleaning operation as a "challenge" that attracted people with a passion for activities like mountaineering or climbing."It goes hand-in-hand with what we enjoy," he added. "It's definitely physical but it is good fun as well."

Thousands of people have flocked to the RAF Cosford Air Show, to see a parachute display and the Red Arrows taking to the skies.The RAF Falcons kicked off the action when they jumped from their aircraft with their chutes at 11:30 BST, with the Red Arrows' performance at 15:30.

This year's theme has been "take flight", with the hope it would kickstart people's enthusiasm in aviation and "potentially a career in the Royal Air Force".

Almost 60,000 visitors were expected and on Sunday morning extensive queues were reported, particularly from the West Midlands side, on the M6, M54 towards junction 3 and then on the route to the airbase.Sister Carr, 50, said: "It's highs and lows and aches and pains, but on the whole it is absolutely amazing."

Talking from Corbeny, in France, she said lots of people had been helping along the way, and "feeding me up"."The feet are a little bit sorer than I thought they would be - I have had to go through about three packs of plasters.

"At the beginning I thought 'am I really going to be able to do this?' But, it's manageable," she said.Sister Carr said she had been staying in homes, monasteries or parish centres, and "meeting all sorts of people".