Some riders/horses don't mind them others find them a real problem and safety issue. The BHS has very clear guidlines on siting of turbines in relation to bridleways and any other roads or routes used by horses.
See BHS Guidance Leaflet. Broadly the separation distance should be at leat 2 to 4 times the height to the tip of the blades. The 4 times distance is recommended for trail routes where horses unfamilair with the turbines are more likely to use the route.
February 2012 - There seem to be a spate of applications for single relatively large turbines (77 metres) at random locations and often with no consideration for local roads or bridleways. Please do be vigilant and make objections to planning applications where appropriate.
There are currently two of great concern in East Cornwall, one at Laneast the Other at South Petherwin. The latter is siting the turbine only 100 metres from two quiet lanes.
Another consideration that is arising, that is not covered by current BHS advice, is proximity to equine schooling establishments. There is evidence that horses can be greatly distracted by turbines even at distances exceeding the guidelines for bridleways.
WE WOULD LIKE TO HEAR OF YOUR YOUR EXPERIENCES OF AND CONCERNS ABOUT TURBINES.