Exactly! All EC135 are yellow / all yellow helicopters are EC135s
Some EC135s are bigger than others, though. Especially 'BIG' are the Air Force SAR versions I frequently saw out of Anglesey.
RAF Search and Rescue Force - Wikipedia, the free encyclopedia .
And here is a very small, 2-seat EC135 with just one engine.
http://www.helihub.com/wordpress/wp-...w2-150x150.jpg
You had a photo of the middle-sized version
http://www.dsairambulance.org.uk/wha...he-helicopter/