A man who discovered an RAF notebook dating back to World War Two is appealing for help in tracing the owner or his family.

Mike Richardson discovered the buff-coloured book while cleaning out an aircraft hangar at Sibson aerodrome, at Wansford, near Peterborough, in 2002.

It belonged to AC1 Harding and is packed with handwritten notes and the odd doodle. The aircraftman appeared to be learning how to fly.

Mr Richardson, chief executive of DSM Group, said his attempts to find out more since then had failed, but revealed: "It's my mission to reunite the book with the owner or his family".

"Over the years, we've shown it to a fair few 'anoraks', but again without much success," he said.

Mr Richardson bought the type T1 hangar in 2002 as a base for his company.

"It was dusty, cobwebby, but the structure was pretty sound so we set to clean it out using a high pressure power wash.

"That's when I came across the notebook: it shot out and hit the floor."

The book, which is similar to a school exercise book, had been hidden in one of the hangar's ribs and was stamped Royal Air Force.

Mr Richardson suspects it might have been intended to be submitted as part of AC1 Harding's coursework while he learnt to fly.

"I'm a pilot myself, for leisure, and I can see stuff in there as regards engines - I'm pretty sure there's a sketch of a wing explaining how lift is generated and that is a key bit of learning how to fly," he said.

The hangar was built in 1942 when the site was RAF Sibson, which appears to have been a satellite station for RAF Peterborough at Westwood Airfield.

Mr Richardson said attempts to find out what Sibson was used for during the war have so far proved fruitless.

"There seems to be a veil of secrecy around it - whether it's true or not, we've been told it was use for dropping agents into France," he said.

So as well as wanting to reunite the logbook with the man who wrote it or his family, he would love to find out more about the airfield's wartime history.

"That notebook belongs to somebody and it's rightful place is with that person and if we can do that and perhaps fill in a little bit of the mystery behind Sibson airfield, I think that would be wonderful," he said.

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Sibson man's mission to find WW2 RAF notebook's owner