Refuelling at Sunderland's former airfield is this heli.  Heli's were not so common at Sunderland.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/23450632094/">Hughes 369 G-BDKL at Usworth</a>