A project to raise two of the bouncing bombs designed by Midlands engineer Sir Barnes Wallace from the bottom of a Scottish Loch, has now gained the backing of his family.
The mission by the British Sub Aqua club will involve divers from across the region.
It's hoped it will bring about the first public display of the weapon used in the Dambusters raid of 1943, ahead of the 75th anniversary next year.
Robert Townsend sent this video report.
There will be another service to commemorate the Dambusters raid today, this time in Lincoln Cathedral. The event will be attended by more than 1,300 people, including veterans of the raid Johnny Johnson and Les Munro, who has flown from New Zealand to be here.
Other relatives of those involved in the raids, including Guy Gibson's nephew and Mary Stopes Roe, the daughter of bouncing bomb inventor Barnes Wallis, will also be in attendance.
The service will be led by the Dean of Lincoln Cathedral, supported by the Chaplain in Chief of the Royal Air Force, and will be followed by a flypast by the Lancaster of the RAF Battle of Britain Memorial Flight and a pair of Tornado aircraft from 617 Squadron.
It follows last night's flypast infront of hundreds of people at RAF Scampton where the Dambusters mission began.
There has been another flypast this evening - this time at a service of remembrance in front of hundreds of people at RAF Scampton where the Dambusters mission began. James Webster was there.
In a moving interview, Lincolnshire-born survivor Johnny Johnson looks back over his life and says he was "lucky" in more ways than one.
Hundreds of people turned out to witness the Dambusters' commemorative flypast in Derbyshire, Chris Kiddey among them.
Mary Stopes-Roe is the daughter of Barnes Wallis, the man who invented the infamous "bouncing bomb".
Air-to-air shots of the Lancaster Bomber flying over the Derwent Reservoir dams to commemorate the 70th anniversary of the Dambusters raid.
See great footage taken from the cockpit of the Dambusters's flypast.