Hello all,Today I was flying a normal route flown by FEDEX from PANC(Anchorage) to KEWR (Newark). About 900nm into my flight I received a low fuel temp warning that suggested I descend to a lower altitude. This makes sense since the outside air temp at FL320 was -60C and the fuel freezes at -40C; I started my descent and then lost the number 1 and 3 engines because of frozen fuel. I had to get down to 8000 AGL before the engines would restart. One last note; I was flying direct and was way north of Canada when this occured.My questions are:1. Do planes normally fly that far north in conditions of -60C? Or do they fly south of it and then head east. ( PANC to KEWR)2. Is there anything I can do about it besides descending? (I checked the QRH and Systems Manuals)I know this is not a problem with the desgin of PMDG's MD-11; I just want to know what is done in the real world. Thanks PMDG for applying that much attention to detail!!! :( Dan Schultz

Hello all,Today I was flying a normal route flown by FEDEX from PANC(Anchorage) to KEWR (Newark). About 900nm into my flight I received a low fuel temp warning that suggested I descend to a lower altitude. This makes sense since the outside air temp at FL320 was -60C and the fuel freezes at -40C; I started my descent and then lost the number 1 and 3 engines because of frozen fuel. I had to get down to 8000 AGL before the engines would restart. One last note; I was flying direct and was way north of Canada when this occured.My questions are:1. Do planes normally fly that far north in conditions of -60C? Or do they fly south of it and then head east. ( PANC to KEWR)2. Is there anything I can do about it besides descending? (I checked the QRH and Systems Manuals)I know this is not a problem with the desgin of PMDG's MD-11; I just want to know what is done in the real world. Thanks PMDG for applying that much attention to detail!!! :( Dan Schultz

Dan,One thing you can do if you know you are going to find such low temperatures during cruise is to use fuel type with a lower freezing temperature. You can change the fuel type from the FUEL INIT page on the MCDU. (INIT button -> ->)

Ive never experienced frozen fuel before. I did get a low fuel temperature warning once and the fuel system NICELY recirculated the fuel mixing it with warmer fuel and the fuel temperature began to rise slowly but surely. However a couple methods used to warm fuel would be to descend, increase speed and one blasphemy i heard was on a particular aircraft to use wing anti ice which would throw back some heat

Dan,One thing you can do if you know you are going to find such low temperatures during cruise is to use fuel type with a lower freezing temperature. You can change the fuel type from the FUEL INIT page on the MCDU. (INIT button -> ->)

Wow, I switched to Jet B and no more engine flame outs. Thank you. Is Jet A and Jet B the only types that can be entered on this page?Dan Schultz

Ive never experienced frozen fuel before. I did get a low fuel temperature warning once and the fuel system NICELY recirculated the fuel mixing it with warmer fuel and the fuel temperature began to rise slowly but surely. However a couple methods used to warm fuel would be to descend, increase speed and one blasphemy i heard was on a particular aircraft to use wing anti ice which would throw back some heat

It started recirculating at around -38c; the engines didn't go out until it hit -47C. It happened pretty quick too, thanks to FS9's weather engine the OAT dropped from -17C to -62C almost instantly. I also tried the anti ice and bumping up the heat in the Cargo Bays ( the cargo heat is probably what kept the center engine from going out since it feeds off the center tank). Anti-ice didn't help; I figured as much but it was worth a try.At least the engines recovered though (really close to ground). I was able to then declare an emergency and with Radar Contact and head for the closest airport which was PANC. I 'm still flying it now and I'll reach my T/D in about five min.Dan Schultz

Wow, I switched to Jet B and no more engine flame outs. Thank you. Is Jet A and Jet B the only types that can be entered on this page?Dan Schultz

Dan,There are more, but I don't remember how they are entered. Check the FUEL INIT page description on the FMS manual

Dan,There are more, but I don't remember how they are entered. Check the FUEL INIT page description on the FMS manual

Thanks for the help; it looks like JP 4 is my best option since it has a freezing temp of -58C.Dan Schultz