The most dodgy bit about partial panel in IMC is actually recognising that the vaccum system has failed, and then to ignore the AI and HI, if possible cover them up so you can't use them....Once you have got that sorted, then its safe to fly PP, although a very good idea to get out of IMC as soon as possible.
I wonder why nobody has invented an electronic AI running on say a pocketPC device which could be used in an emergency? Could be combined with moving map software.....You can get cheap electric gyro's for model aircraft which would be good enough to provide the attitude info ....?
Cheers
EA
