westland helicopter wg30 from the 80s.

does anyone have any info on the westland helicopter that was a type of transport helicopter like a lynx but much bigger? i had a copy of observers aircraft in 1983 and this helicopter was in the book as a new chopper. not heard of it since? it carried about 12-16 people and was streamlined. looked like a bigger lynx, think designation was wg30, no name given.