Found these to bits of info on: http://en.wikipedia.org/wiki/British_Airways_Flight_9 (When the 1982 incident occured over the Indian Ocean to the British Airways 747)
Fact No1: "Aircraft Ability"
Without engine thrust, a 747-200 has a glide ratio of approximately 15:1 meaning it can glide forward 15 kilometres for every kilometre it drops. The flight crew quickly determined that the aircraft was capable of gliding for 23 minutes and covering 91 nautical miles (169 km) from its flight level of 11,000 metres (36,000 ft)
That's pretty impressive for what essentially becomes a very large tin of sardines!
Fact No2: "Flight Engineers Reaction"
At approximately 13:42 UTC (20:42 Jakarta time), engine number four began surging and soon flamed out. The flight crew immediately performed the engine shutdown drill, quickly cutting off fuel supply and arming the fire extinguishers. Less than a minute later, at 13:43 UTC (20:43 Jakarta time), engine two surged and flamed out. Within seconds, and almost simultaneously, engines one and three flamed out prompting the flight engineer to exclaim, "I don't believe it – all four engines have failed!
I can only imagine what I would have said in the same situation! Something with lots of swear words and cursing – followed by me looking for my parachute, or in the abscence of that the biggest golfing umbrella I could find 🙂