Heavy turboprop over EGMC
Sorry if this is a bit of an 'anorak' question but I'm curious about a heavy turboprop that passes over EGMC at high level most evenings (tonight incuded) at around 23.30/23.45 ish West to East. A eal hum, even at high level. At a guess i'd say maybe an Electra or some similar size or sound. Any ideas what it is or where its from/to?
Also tonight a second one passed over at 00.10 but sounded a bit quieter.
Appreciate if anyone can ease my curiosity....