Mmmmm as I remember the UK rules from that far back....
I don't think the Bo105"D" (the UK variant)was IFR rated(???)....
AFAIK.... it was allowed to fly in IMC outside of controlled Airspace (single pilot) as were most military helicopters of the day... but NOT IN Controlled Airspace!
Anyway flying the "Slippery lil Sucker" on the "clocks" was hard work ..... especially if the "Ferranti" SAS was playing up ...most times it was easier to turn it (the SAS) off and put up with the "aeros" .
I do remember a Sperry kit mentioned in the options list but never heard of one being fitted or certified.
Cheers
