No IFR allowed single engine in the UK, whether private or commercial. I heard that even in the IFR cert'd AS355 that Bristows train IR on, it all has to be flown VMC/Simulated!?! I will happily stand corrected...
You can (or could) in other parts of Europe as national deviations from JAA/EASA. Denmark for instance allow some flight in IMC, in IFR equipped single engined aircraft on a Danish reg, if not for commercial air transport...
Last edited by Aucky; 3rd Oct 2013 at 15:38.