One of the Rolls Royce Trent 772B-60 engines on this A330 being through its paces in a remote high power engine ground run.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/33991526@N03">Simon Boddy</a> from Maidenhead, Uk
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/simbod24/12834774205/">C-GFAH at heathrow</a>