Just across the road from the main Museum, is the Fleet Air Arm Museum's Reserve Collection. The Reserve Collection is larger than that of many other entire aircraft museums and is housed in an Heritage Lottery funded climate-controlled building called Cobham Hall.

Within Cobham Hall there are over thirty historic aircraft and some five miles of shelving accommodating many of the Museum's 2 million records and 30 thousand artefacts.

Among the aircraft and artefacts within Cobham Hall is one of the largest collections of Westland Helicopters including a Whirlwind and a Wasp, a Supermarine 510 - the first swept wing jet aircraft to land on an aircraft carrier and the Gazelle helicopter in which HRH The Duke of York learnt to fly.

Cobham Hall opens to the public at least once a year (Check Events for opening dates) when it attracts visitors from all over the UK to see its unique collection of aircraft, records & artefacts, many of which have never before been seen on public display.

Cobham Hall also houses the world's oldest surviving aircraft carrier, the Lighter T3 (see image below) which is on the National Register of Historic Vessels.  This sixty feet long streamlined craft was towed behind fast RN destroyers, allowing aircraft to take off at sea during World War 1. 

The aircraft housed in Cobham Hall are in various stages of preservation or repair.