Hope the following are of help:
Close-ups of Victor Alpha (reserve Portland Helo)
(Have higher res shots if required)
Some helo shots from the RNLI Atlantic Training Course
(Likewise may be able to get you higher res stuff in time)
Feel free to use any of these photos.
Also if you email (not PM) me your email address Iíll send you the RNLI Helo Proceedures booklet which outlines the RNLI methods for helo rescue and is rather useful. (This is freely available on the web so is not pinched!)
PS: Daniel - just noted your post, thanks!!