Story from BBC NEWS
Rider's death prompts MoD changes
The death of a horse rider has prompted the Ministry of Defence to change its low-flying helicopter training policy.
Heather Bell, 38, from Lincolnshire, died after her horse was spooked by a low-flying helicopter and she fell to the ground in Market Rasen in 2003.
The MoD is expanding its low-flying hotline to include more detailed information on training flights as a result of an official review.
The minimum height for normal low flying has increased from 50 to 100 ft.
The information will be available from 3 October through an MoD freephone helpline.
The public will be able to find out when training is taking place in new designated low-flying areas and the times of planned flights outside these areas.
Horse riders will also be given more information on manoeuvres, including routes, speeds and altitudes.
A joint safety campaign with the British Horse Society will also be expanded to encourage riders to wear high visibility clothing to help helicopter crews spot them.
Air Commodore Garwood said low-flying will take place under 100 feet for some specific exercises.
The inquest into Mrs Bells' death found that the MoD's low flying policy was "insufficient".
Announcing the review's findings on Wednesday, Air Commodore Dick Garwood said: "Any death is completely unacceptable and that is the bottom line.
"If there is any single thing we can do to prevent another death happening while we are going about our training, then we will do it."
Mrs Bell, who was married with two young daughters, died from brain damage a day after the fall.
The helicopter was flying within current policy guidelines and had clearance to fly as low as 50ft.
The new designated training areas will mean that the majority of all low flights - 68% of the 45,000 yearly flights - will be within areas surrounding Britain's major air bases.
Those eight areas - including southern Cornwall covering the Culdrose air base and parts of Essex and East Anglia - cover just 6% of the UK's land area.
Under Secretary of State for Defence, Don Touhig, said: "Armed Forces helicopter crews must be able to train at low-level if they are to operate effectively around the world.
"Low flying is essential in battlefield operations for surveillance and other tactical support.
"But we aim to do everything feasible to minimize the risk to the public and particularly to horse riders."
The MoD freephone low-flying hotline number is 0800 51 55 44.