ATR-72 and Sikorsky S-76

Not a plane spotter, but I got these pictures and with the help of a friend ID'd them. Click the image to see bigger versions

Aer Arann ATR-72

IMAGE LINK: http://www.flickr.com/​photos/karldenby/28220​91833/

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the first one looks out of focus, probably because of how late it was.

One more that I found from my first walkabout with the 400d, can't tell you what left the vapour trail, but I like the way it looks like a missle just missed the police helicopter

Its a Eurocopter EC 135 P2