A wonderful contribution, taken just a couple of days ago by Anthony Osborne, of a Royal Danish Air Force Merlin flying in Wales:
AgustaWestland EH101 Mk512 Merlin M-516 of the Royal Danish Air Force (Flyvevåbnet) at Caernarfon in Wales in March 2013 (Photo: Anthony Osborne)
AgustaWestland EH101 Mk512 Merlin M-516 of the Royal Danish Air Force (Flyvevåbnet) engaged in low flying training in Wales en route to Snowdonia in March 2013 (Photo: Anthony Osborne)
I didn't ask Anthony which route the Merlin was following but .. if its the same as for the planks then I'm guessing its the Machynlleth 'Mach' Loop.
I can only imagine that the First Officer is helping his colleague to decipher British road signs?