Two men sail a yacht along the river at Christchurch in Hampshire.
New British satellite tracking station is housed in an inflatable protective dome.
New military equipment on show at the Military Engineering Experimental Establishment.
Presentation of weird and 'useful' inventions of the British Army.
These homemade vehicles are being raced from Christchurch to Poole in Dorset.
Good item showing Donald Colman Bailey, inventor of the floating Bailey bridge, at work.