Bovingdon stack

Coordinates: 51°43′34″N 0°32′59″W / 51.726101°N 0.549722°W / 51.726101; -0.549722 The Bovingdon stack is a section of airspace to the north west of London where inbound planes to London Heathrow Airport, which is 20 miles (30 km) to the south, are held. It is a busy example of a hold. It extends above the village of Bovingdon and the town of Chesham, and requires the VOR navigational beacon BNN which is situated on the former RAF Bovingdon airfield. At busy times on a clear day a dozen planes may be circling overhead. Other holding patterns serving Heathrow are at Biggin Hill, Kent (BIG - SE Arrivals), Lambourne, Essex (LAM - NE Arrivals) and Ockham, Surrey (OCK - SW Arrivals), where inbound aircraft will normally use the pattern closest to their arrival route. They can be visualised as invisible helter skelters in the sky.

The stack descends in 1000 ft (300 m) intervals from 16,000 ft (4 km) down to 8000 ft (2100 m).

On 1 December 2003 at 6am, a major disaster in the stack was narrowly avoided. An air traffic controller was blamed by a later enquiry for misdirecting traffic when he ordered a United Airlines Boeing 777 into a level of the Bovingdon Hold (or stack) already occupied by a similar British Airways plane. The two planes, carrying 500 passengers, flew within 600 vertical feet (180 m) of each other.

Bovingdon

Coordinates: 51°43′23″N 0°32′12″W / 51.72312°N 0.5367°W / 51.72312; -0.5367

Bovingdon is a large village in Hertfordshire, England, four miles southwest of Hemel Hempstead, and it is a civil parish within the local authority area of Dacorum. It forms the largest part of the ward of Bovingdon, Flaunden and Chipperfield, which had a population of 4,600 at the 2001 census.

Description

The name is first mentioned in deeds from 1200 as Bovyndon. It could originate from Old English Bufan dune meaning "above the down" or from Bofa's down, the down belonging to Bofa.

There are two churches in the village. The Baptist Church and the Anglican Church. The Baptist church started as a Wesleyan Methodist Church and changed to Baptist. St Lawrence Church was built in 1845 by Talbot Bury. The churchyard is the second largest in Hertfordshire and includes an avenue of clipped yew trees. The village also includes some old cottages. There are three pubs in the village centre, The Halfway House, The Bull and The Bell. A fourth, the Wheatsheaf, is now closed.