Strange noises in the sky 'caused by Britten-Norman Defender'
Many news stories are reporting strange aircraft noises in the skies over the Northwest in recent weeks.
I first noticed the noise above Derry about three weeks ago when I was taking my son in to hospital around 4am.
Being a keen aircraft spotter and pilot I was interested in the story.
I have come to the conclusion that the aircraft is a Britten-Norman Defender twin engine turboprop spotter plane operated and is based in Aldergrove.
It is used for counter-terrorism and general surveillance. It is operating over Limavady at the moment and has been for several days.
I have seen the plane and im 100% sure given the wing planform etc that it is the defender.
Hope this clears up any concerns.
Owen, via email
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