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Must be a slow day today ZH ? Unless you are of a strong disposition, I'd be inclined to be sitting down before reading some of the links from this gurgle search for
'crowsnest helicopter radar'
https://duckduckgo.com/?t=ffnt&q=Cro...=v204-1&ia=web
The current state of play seems to be merely several feeble shuffles (I cannot bring myself to use the word 'improvements') from the original Searchwater/Sea King fit and at least one generation displaced from reality. It's way out of date and way out of control.
Good for decorational flypasts only.
If it ain't AESA - it ain't gonna win.
LFH
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