http://m.gazetteseries.co.uk/news/12...licopter_base/
Franz Ehrengruber, a retired pilot who has flown in and out of Filton airfield, urged councillors to consider a range of aviation issues principally around the site's topography and potential flight paths.
“From an aviation point of view the site is totally unacceptable,” he said. “There is a hill, a number of obstacles including the RAC tower and power lines. It is a dangerous site.
“Visibility may be severely restricted due to these obstacles and at times this will mean that flights will have to be cancelled. I suspect the helicopter pilots and operators had little say in it."