As Iceland’s Grimsvötn ash cloud hits parts of the UK and flights are grounded, the Institution of Mechanical Engineers shares its insight into ash cloud and its effect on aeroplane engines.
The Institution responds to the Icelandic volcano – as it happens: Download the latest press release on the volcanic eruption
Read the Institution’s report 'Volcanic ash: to fly or not to fly'
See Director of Engineering Dr Colin Brown on Sky News:
Hear President elect Professor Roderick Smith on BBC Radio 4’s Today programme: