I have never heard of them being used in cliff rescue, and it is 'illegal' for rescue agencies to use mechanical winches in high angle rescue IIRC... You could be right though. 
Also, not all Ambulances were fitted with winches. Ambrose wasn't nor were any of the other 30 vehicles in his contract.
Capstan winches were fitted to a lot of civilian vehicles as well (to my knowledge) and from what I know these were implicitly for vehicle recovery.
Seems strange to go to that much effort to fit a capstan winch if it were just for minimal loads when it probably would have been just as expensive to fit a Bamford that could recover a vehicle... (assuming that the Capstan type could not)
*Disclaimer - I have never used a capstan winch and by the time I was born they were largely obsolete.
[B][I]Andrew[/I][/B]
[COLOR="YellowGreen"][U]1958 Series II SWB - "Gus"[/U][/COLOR]
[COLOR="DarkGreen"][U]1965 Series IIA Ambulance 113-896 - "Ambrose"[/U][/COLOR]
[COLOR="#DAA520"][U]1981 Mercedes 300D[/U][/COLOR]
[U]1995 Defender 110[/U]
[SIGPIC][/SIGPIC]
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