The map above shows Yeovilton and Merryfield airfields; the orange arrows depict the general routing of helicopters transiting between Yeovilton and Merryfield.  The route in use at any particular time will depend on the prevailing wind and the cloud base.

When Yeovilton is operating (scheduled times are on the ‘Weekly Information’ page), the area within a 5 mile oval area based on Yeovilton and Merryfield is controlled by Yeovilton, and all other aircraft require approval from Yeovilton Air Traffic Control to enter.

Outside these areas, the airspace may be used by all kinds of aircraft (military, civilian, fixed and rotary wing) from Yeovilton and much further afield.

There are also 6 areas designated for instrument flying training between 3,000 and 6,000 feet above sea level.  These areas extend from Taunton in the west to Shaftesbury in the east and from Dorchester in the south to Wells in the north.  Although the northern areas are the most convenient for this training, whenever possible, aircrew vary the use of the areas to ensure that this higher-level disturbance is not concentrated to the north of Yeovilton.

Because of the threats posed by unconventional adversaries in operations, Yeovilton’s helicopters conduct much of their operational training in the local area at low level by day and night.  More information about the need for low flying training is contained in the 'Military Flying and Flying Complaints' page.

Our helicopters also use a number of open field landing sites offered for use by local farmers and landowners in Somerset, Dorset and Devon.  Use of these sites is regulated and the frequency of use is controlled to ensure that disturbance to the adjacent communities is minimised.