September 4, 201312 yr Hi, I have started following the tutorial of the 777 and are now having a fuel issue with it. At the top of climb i had still expected 7200kg of fuel at OMDB, but not even halfway of the flight this dropped to only 500kg expected. I added 7000kg of fuel (should not be done, but I want to complete the flight), and it was briefly on expected 7000kg at destination, but now a few minutes later it is again 5000kg. Things that I have checked: - Flaps up - Gear up - Speedbrake not armed - N1 setting and temperature set correctly - No fuel dump active - Static weather theme without winds enabled Anyone has a clue what can cause this issue? Thanks. Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr Commercial Member Anyone has a clue what can cause this issue? Did you use the right numbers for the tutorial? The tutorial was written for LBS. While it includes numbers for KGs, I'm assuming there was some sort of entry/conversion error on your part, because it was just fine for me. Kyle Rodgers
September 4, 201312 yr The values you are providing at destination, you getting this from the PROGRESS page? You might try looking at LEGS DATA to see the fuel estimated on board at each segment. When I first flew the tutorial, I happened to go through the pre takeoff stuff slowly and I got into my reserves but still had plenty to safely make it. Just had to reduce the reserves value to get rid of the message. Dan Downs KCRP
September 4, 201312 yr Author I used all KG numbers. So shouldn't be the issue actually, especially not because it was fine at T/C. Got to follow the tutorial again maybe, first I got to land this thing. Seemed like yesterday the autobrakes did not want to work, but I think that was more my fault. The values you are providing at destination, you getting this from the PROGRESS page? You might try looking at LEGS DATA to see the fuel estimated on board at each segment. When I first flew the tutorial, I happened to go through the pre takeoff stuff slowly and I got into my reserves but still had plenty to safely make it. Just had to reduce the reserves value to get rid of the message. At the Legs data at the final waypoint, it shows only 2600kg now. This is now 11400kg under the expected and calculated reserves (I added 7000kg during flight).It's not that it changed from 7000 to 6000 expected, because then I would have just changed the reserves number. Weird issue really Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr I've used the value in KG setting the aircraft and i've finished the flight with about 7800 KG of fuel onboard using real wheater. The value used into the tutorial is correct they have used PFPX to calculate fuel and inserting the ZFW as tutorial FL380 and CI30 i have the same value of fuel for trip. Marco Negri
September 4, 201312 yr Author Me too, but something else is wrong. Will do the beginning of the tutorial in half an hour again, and see if I missed something Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr This is my PFPX template for the tutorial with weights in KG and assumed fuel maybe could help you- EMIRATES AIRLINE FLIGHTPLAN - IFR UAEUAE772 A6-EWI VRMM-OMDB -------------------------------------------------------------------------------- ALL WEIGHTS IN KILOGRAMS (KG) STD 04SEP/1710Z -------------------------------------------------------------------------------- PREPARED 04SEP/1647Z BY MARCO NEGRI CREW MEMBERS: CP: MARCO NEGRI, FO: , OT: AND 2332/UAEUAE772 OFP 1 A6-EWI/B777-2LR GE ROUTE: (MANUAL) DEP: VRMM/MLE 18 ELEV 6 FT CRZ SPD: CI 30 TTL G/C DIST: 1643 NM ARR: OMDB/DXB 12R ELEV 62 FT INIT ALT: FL380 TTL F/P DIST: 1716 NM BURN ADJ: 104.0% TTL AIR DIST: 1708 NM AVG WIND CMP: TL002 KT ALT: OMSJ/SHJ 30 ELEV 116 FT 19 NM -------------------------------------------------------------------------------- CONFIG DOW PAX BAGGAGE CARGO TOTAL ULOAD LIM ZFW TOW LDW STANDARD 156146 230 2990 16194 37354 15606 ZFW MAX 209106 347452 223167 PLN 193500 225471 201145 ACT ...... ...... ...... FUEL CORR ENDUR TRIP 24326 ........ 03:43 CONT 5% 1216 ........ 00:11 ALTN OMSJ 1154 ........ 00:08 FINAL RESV 3205 ........ 00:30 ETP ADD 2070 ........ MIN T/O 31971 ........ 04:32 ..................................... EXTRA 0 ........ 00:00 CAPTAINS SIGNATURE (....) TAXI 260 ........ 00:10 RELEASE 32231 ........ 04:42 I ACCEPT THIS OFP AND I AM FAMILIAR WITH THE PLANNED ROUTE AND AERODROMES FUEL TANK CAP 145512 KG / MAX EXTRA FUEL 22022 KG LIM BY LDW TRIP CORR FOR 3000 KG TOW INCR: +254 KG / 3000 KG TOW DECR: -249 KG 2000 FT LOWER: +24 KG / EET 03:43 CLB: 250/310/84 DES: 84/320/250 VRMM/MLE STD 17:10 ETD 17:10 ACT OFBL ..... EST T/O 17:20 ACT T/O ..... OMDB/DXB STA 21:25 ETA 21:08 ACT ONBL ..... EST LDG 21:03 ACT LDG ..... TTL BLCK ..... TTL FLT ..... ******************************************************************************** ATC ROUTE: N0486F380 L4D LELEM L894 KITAL P570 ITURA M762 BUBIN BUBI7H ALTERNATE PLANNING -------------------------------------------------------------------------------- ALTN/RWY DIST ALT/FL COMP TIME FUEL DIFF ROUTE OMSJ/30 19 3000 HD006 00:08 1154 - SERSA -------------------------------------------------------------------------------- AWY WAYPOINT MT ALT WND/VEL TAS REM FUEL REM / USED LEG ACC NAME TMP FREQ GS DIST POSITION ETO / ATO -------------------------------------------------------------------------------- VRMM/18 6 32.0 / 0.3 IBRAHIM NASIR IN 1716 N0412.3 E07331.7 ...../..... L4D MM010 183 *CLB 8 30.7 / 1.5 03 00:03 1708 N0404.6 E07331.9 ...../..... L4D MM011 183 *CLB 4 30.4 / 1.8 01 00:04 1704 N0400.6 E07331.9 ...../..... L4D MM012 273 *CLB 8 30.0 / 2.3 01 00:05 1696 N0400.5 E07323.8 ...../..... L4D LELEM 339 *CLB 56 27.9 / 4.3 07 00:12 1640 N0451.2 E07301.1 ...../..... *TOC 326 FL380 070/020 486 28 27.2 / 5.0 04 00:16 -51 491 1612 N0513.4 E07243.8 ...../..... L894 BIBGO 325 FL380 071/018 481 173 25.0 / 7.2 21 00:37 -VABF -51 487 1438 N0730.1 E07056.8 ...../..... L894 ESMIT 325 FL380 085/023 480 171 22.8 / 9.4 21 00:58 -51 492 1268 N0944.0 E06910.3 ...../..... *ENTRY 324 FL380 086/023 480 76 21.8 / 10.4 09 01:07 VOML -51 494 1192 N1043.4 E06822.6 ...../..... *CRP 1 324 FL380 086/023 480 0 21.8 / 10.4 00 01:07 VRMM -51 494 1192 N1043.5 E06822.5 ...../..... L894 GOLEM 323 FL380 083/021 480 95 20.6 / 11.6 12 01:19 -51 492 1097 N1157.7 E06722.2 ...../..... *CRP 2 323 FL380 047/027 480 182 18.3 / 13.9 22 01:41 -50 492 915 N1419.4 E06524.9 ...../..... *CRP 3 322 FL380 047/027 480 0 18.3 / 13.9 00 01:41 VOML -50 492 914 N1419.5 E06524.8 ...../..... L894 DONSA 322 FL380 043/029 481 21 18.1 / 14.2 03 01:44 -50 477 894 N1435.3 E06511.5 ...../..... *CRP 4 322 FL380 354/008 481 141 16.2 / 16.0 18 02:02 -50 477 752 N1624.5 E06338.6 ...../..... *EXIT 321 FL380 353/008 481 1 16.2 / 16.0 00 02:02 OOJA -50 474 752 N1624.9 E06338.3 ...../..... L894 BOLUR 321 FL380 278/010 481 47 15.6 / 16.6 06 02:08 -50 473 705 N1700.7 E06307.4 ...../..... L894 KITAL 319 FL380 076/023 483 243 12.5 / 19.7 30 02:38 -OOMM -47 491 462 N2003.0 E06018.0 ...../..... P570 GOLNI 329 FL380 088/020 484 67 11.7 / 20.5 08 02:46 -46 493 395 N2100.2 E05941.5 ...../..... P570 TAVKO 328 FL380 093/018 484 18 11.5 / 20.7 03 02:49 -46 494 378 N2115.3 E05931.8 ...../..... P570 BONOM 328 FL380 101/016 484 25 11.2 / 21.0 03 02:52 -46 494 353 N2136.6 E05918.0 ...../..... P570 EMURU 328 FL380 123/013 484 44 10.7 / 21.6 05 02:57 -46 495 309 N2214.0 E05853.6 ...../..... P570 TOLDA 328 FL380 135/011 484 31 10.3 / 21.9 04 03:01 -46 496 278 N2240.1 E05836.4 ...../..... P570 GIDAN 328 FL380 134/009 484 25 10.0 / 22.2 03 03:04 -46 495 254 N2301.1 E05822.5 ...../..... P570 ITURA 327 FL380 134/006 483 27 9.7 / 22.5 03 03:07 -46 490 227 N2323.8 E05807.3 ...../..... M762 ALMOG 304 FL380 133/005 483 20 9.5 / 22.8 02 03:09 -46 490 207 N2335.4 E05749.7 ...../..... M762 *TOD 307 FL380 133/005 484 83 8.4 / 23.8 11 03:20 -46 484 124 N2426.2 E05638.0 ...../..... M762 VAXAS 312 *DES 25 8.2 / 24.1 06 03:26 -OMAE 99 N2443.1 E05618.1 ...../..... M762 BUBIN 323 *DES 18 8.1 / 24.1 02 03:28 81 N2457.7 E05606.7 ...../..... BUBI7H GIRMI 299 *DES 10 8.1 / 24.1 02 03:30 71 N2502.7 E05557.5 ...../..... BUBI7H MESGA 288 *DES 11 8.0 / 24.2 01 03:31 61 N2506.3 E05546.6 ...../..... BUBI7H DB423 300 *DES 14 8.0 / 24.3 02 03:33 46 N2513.9 E05533.1 ...../..... BUBI7H TALVI 300 *DES 8 7.9 / 24.3 02 03:35 38 N2518.2 E05525.2 ...../..... BUBI7H DB421 300 *DES 6 7.9 / 24.3 01 03:36 33 N2521.1 E05520.0 ...../..... BUBI7H DB420 300 *DES 4 7.9 / 24.4 01 03:37 29 N2523.2 E05516.2 ...../..... BUBI7H ALNET 300 *DES 4 7.8 / 24.4 01 03:38 25 N2525.3 E05512.5 ...../..... BUBI7H SOGAP 300 *DES 4 7.8 / 24.4 00 03:38 21 N2527.4 E05508.7 ...../..... BUBI7H REREK 209 *DES 4 7.8 / 24.4 01 03:39 17 N2524.0 E05506.4 ...../..... BUBI7H PEDOV 122 *DES 5 7.7 / 24.5 01 03:40 12 N2521.3 E05510.7 ...../..... BUBI7H OMDB/12R 120 62 12 7.6 / 24.6 03 03:43 DUBAI INTL N2515.2 E05521.9 ...../..... -------------------------------------------------------------------------------- Marco Negri
September 4, 201312 yr Commercial Member Me too, but something else is wrong. Will do the beginning of the tutorial in half an hour again, and see if I missed something If you're using KGs, make sure you've selected KGs in the menu options (the tutorial shows you how). It sounds stupid, but entering KGs when it's expecting pounds will give you a lot less fuel than you'd need. Kyle Rodgers
September 4, 201312 yr Author Ok, one clue, with flaps up, gear up, etc, my max speed is 325knots. Does this ring a bell to anyone? Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr Author Yes they are. Perfectly well. Chechlist says everything is fine, no warnings, but max of 325kt. Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr Yes they are. Perfectly well. Chechlist says everything is fine, no warnings, but max of 325kt. The type certificate data sheet says it's only supposed to go at maximum of 330 knots, so 325 knots isn't too far off. Also, when you get to high altitudes, your indicated airspeed is going to decrease, so you really want to be using Mach rather than indicated airspeed. Captain Kevin Air Kevin 124 heavy, wind calm, runway 4 left, cleared for take-off. Live streams of my flights here.
September 4, 201312 yr Author I see screenshots in the tutorial with groundspeed of 487kt. With no wind in the tutorial, that should be the true airspeed too, or at least very close. I have max 325kt. Crappy photos I made attached. Hans WolteringMy Airplane Photos on Flickr - My Website
September 4, 201312 yr Something is very wrong over there, and I don't know what's causing it. But at 38,000 feet, 325 knots indicated should NOT be just Mach 0.492. In fact, at that speed, I'm surprised the airplane is even flying at all. Typical cruise speed for the 777 is Mach 0.84. Captain Kevin Air Kevin 124 heavy, wind calm, runway 4 left, cleared for take-off. Live streams of my flights here.
September 4, 201312 yr Author Exactly, and I have no idea what it causes. It also climbed with 6500-7500fpm and I don't think that is correct either? Hans WolteringMy Airplane Photos on Flickr - My Website
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