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january

737-800 Range

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This is a question for the real pilots out there. I was flying the 737-800 in FSX on a flight from Miami to Los Angeles. I noticed that from my fuel consumption, I was not going to make it to Los Angeles with the fuel I had remaining.I know that American Airlines flies the 737-800 on the Miami-Los Angeles route so it does have the range to make the flight. My plane was fully loaded and I was flying at FL320. My question is can a fully loaded 737-800 make it from MIA to LAX or is AA flying the plane with less than a full load? Or are they flying at a higher flight level which is more fuel efficient or do I just have lousy flying skills?

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>I was>flying the 737-800 in FSX on a flight from Miami to Los>Angeles. Which 737 was it? Definitely not PMDG's. The degree of realism alone in this simulation could account for big differences in fuel burn, I would have zero faith in the stock 737 out of the box in this regard. In a real FMC equipped aircraft pilots constantly adjust altitude (per FMC's recommendation) to fly at the optimum flight level - when aircraft gets lighter because of spent fuel you should climb higher and it sounds like you were stuck at the same altitude for the duration of your cruise. Also the speed is modified accordingly - long range cruise speed changes constantly, again FMC would tell you what speed to fly (the heavier you are the faster you should fly). Also flying in the westerly direction you are flying against the wind - airlines have a way to compute so called wind optimal route. As you can see there are many, many factors here that could make your virtual trip in FSX far from real.Michael J.http://img142.imageshack.us/img142/9320/apollo17vf7.jpg

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WestJet operates 737-700s at FL 400, even on a short hop such as CYVR-CYYC. They also fly CYYJ-CYYZ (Victoria-Toronto) with pretty substantial loads. WestJet also offers Canada/Carribean or Hawaii service with these aircraft. I'm not positive but I think I've read that they also have some 800's.Alex Reid

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With the winds they are right now, you'll need to stay low anyway - that, and because of the fuel load is why AA is filing for FL340. You're going to need around 40,000 lbs to make that trip at FL340, so you'll be loading over 41,000 lbs. Considering max fuel load it around 46K, that's pretty heavy. They'd have to be payload limited. It ain't fun flying west bound for long distances.

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Westjet as -700's and -800's. Flight levels are generally high, FL400 and FL410 at least when I have flown them from YYZ to Calgary/Vancouver/Winnipeg. I think Westjet was looking at flights to Britian from Halifax at one point.Mark.

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I've been told that the longest commercial Boeing 737 ops in the world are between Panama City and Buenos Aires, a distance of 2,871 nm.Miami-Los Angeles is a mere 2,348 nm :)That's not counting BBJ's, who can probably go much further.RhettE8500, Arctic Cooling Freezer 7 Pro, ASUS P5E3 Premium, BFG 8800GTX 756 (nVidia 169 WHQL), 4gb DDR3 1600 Patriot Cas7 7-7-7-20 (2T), PC Power 750, WD 150gb 10000rpm Raptor, Seagate 500gb, Silverstone TJ09 case, Vista Ultimate 64

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I have seen Lufthansa Boeing 737-700s and 737-800s fly from New York to Germany without running out. I think the default FSX flight model is screwed up. I used a professional fuel calculator, and ran out of fuel while taxiing to the gate. If there is a way to adjust the fuel consumption in the model, I would be glad to know.

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>I have seen Lufthansa Boeing 737-700s and 737-800s fly from>New York to Germany without running out. I think the default>FSX flight model is screwed up. I used a professional fuel>calculator, and ran out of fuel while taxiing to the gate. If>there is a way to adjust the fuel consumption in the model, I>would be glad to know.I think the Lufthansa flights you are referring to are the Business Class only service which can make the flight from New York to Germany due to a smaller number of passengers and lower payload.In my example, American uses a regularly configured passenger 737-800 to fly from Los Angeles to Miami and back. I don't think a regularly configured 737-800 with full payload would be able to fly nonstop from New York to Germany.

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>I have seen Lufthansa Boeing 737-700s and 737-800s fly from>New York to Germany without running out. I think the default>FSX flight model is screwed up. I used a professional fuel>calculator, and ran out of fuel while taxiing to the gate. If>there is a way to adjust the fuel consumption in the model, I>would be glad to know.Look at the aircraft.cfg file, specifically for fuel_flow_scalar valueExperiment with this.RhettE8500, Arctic Cooling Freezer 7 Pro, ASUS P5E3 Premium, BFG 8800GTX 756 (nVidia 169 WHQL), 4gb DDR3 1600 Patriot Cas7 7-7-7-20 (2T), PC Power 750, WD 150gb 10000rpm Raptor, Seagate 500gb, Silverstone TJ09 case, Vista Ultimate 64

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MIA-LAX is at the edge of max range.Today's flight plan for PMDG 738 winglets with RW fuel figures:Routing:SID WINCO J43 ROGAN J86 SRQ Q100 LEV J86 JCT J15 INK J4 EWM J184BXK J4 MESSI J104 PKE J4 TNP STAR TTL 2061 NM plus 10 NM for SID/STARTTL FLT TIME 05:05 W/C -20ZFW : 130.8 klbs/ 59.3 Kgs ( 175 Pax plus bags )eLDGW : 141.2 / 64.0eFuel : 42.5 / 19.3 ( incl. taxi )eTOW : 172.7 / 78.3eBurn : 31.5 / 14.3eFuel at dest : 10.3 / 4.7 with altn. KSANInitial FL : 320 at JCT step climb to 340

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I'm not sure why you are using FLs 320/340. Realworld WestJet operates their 737-700s around FL 400 - even on short hops like CYVR-CYYC (376 NM). Since WestJet is consistently profitable, I wonder if fuel economy at higher FLs makes the difference.Have a look at some of their flights on Flight Tracker. On the YVR/YYC shuttle run they are at FL 400 cruise for only about 20 minutes!! This with a nearly full all Economy (Coach) load .Alex Reid

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Hi Alex,accdg. to RW planning charts - european operator of 738W - such a heavy aircraft can only climb to FL320 for opt. altitude. You cannot compare a 350nm trip with more than 2000nm. . .the 73G is much lighter!The required fuel for the trip is MORE than the payload in weight!One of the reasons for the success of low-cost carriers (in Europe) is that they fly mainly flights below 2 hrs flight time!Karl-Heinz - EDDI/THF " Tempelhof "" The mother of all airports " - Sir Norman Fosterhttp://www.precisionmanuals.com/images/forum/747400.jpg

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Examples from the weekend:Sat 05:35PM EDT AAL397 KMIA KLAX B738/Q 34000 WINCO1 WINCO J616 SRQ Q100 REDFN PEKON CLL LOWGO EWM Q2 HOBOL KA21M PSP PDZ PDZ4Sat 06:45PM EDT AAL456 KMIA KLAX B738/Q 34000 WINCO1 WINCO J616 SRQ Q100 REDFN PEKON CLL LOWGO EWM Q2 HOBOL KA21M PSP PDZ PDZ4Sun 05:35PM EDT AAL397 KMIA KLAX B738/Q 36000 WINCO1 WINCO J616 SRQ Q100 REDFN Q105 HRV J58 AEX NOBBL J58 FUZ KF24Y KA27S HIPPI J10 TNP SEAVU1

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Hi Karl-Heinz: I recently flew WestJet realworld CYYC-CYYZ, a trip of about 1500 nm. The 737-700NG was about 75% full in an all Economy/Coach seating config. The FL was 400/390 both ways for an each way trip of about 1500 nm.Alex Reid

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