I fly well equipped modern aircraft where everything works
It's not
quite the case that
absolutely everything works at Cambridge Aero Club - you
might get an aircraft with the EGT gauge not working.
Apart from the EGT gauge, it's almost always the case that all the kit is working, and that you
won't for example turn up for a planned IFR flight to find that the only aircraft left on the ground are ones with half the avionics out of service.