Centrepiece for this year's Farnborough Air Show will be a spectacular £9M triple arch steel framed aircraft hangar big enough to hold six Boeing 737s. Each of the arches rests on A-frame legs, is just 3m deep and spans 90m. Consultant Buro Happold conceived the arch design to minimise the amount of steel needed, while keeping the height of the hangar within airfield height restrictions. This has meant tying the arches together with post tensioned underground beams to resist thrust. Overall, the hangar is 290m long, 45m deep and 22m high. The hangar is part of a series of buildings at Farnborough commissioned by client TAG Aviation. Contractor is Bovis LendLease.