Driver170 6 Posted August 27, 2015 Share Posted August 27, 2015 I'm not faulting PFPX EU OPS fuel planner because its bang on very precise!I would like to know why the difference with this - if you look at PFPX fuel summary after generating a flight. In the SUMMARY section REMAINING FUEL at DEST, is always lower than the planned fuel at the destination on the OFP? Link to comment Share on other sites More sharing options...
jpgmultimodal 61 Posted August 27, 2015 Share Posted August 27, 2015 Hello Driver170,You are absolutely right. I was wondering why there was this difference ; but as I fly only the Q400 it does not make a big difference (only around 20 Kg) so I did not really care. When flying a 727, F28 or a 747-200 you would probably notice more this difference.I found out that, apparently, its happens from the TOD to the LDG and it is the OFP showing wrongly more fuel than it should be.I had a thought about this thinking that it could may be that the approach burn (22 Kg with the Q400) is not taken into consideration on the OFP.Maybe someone would have some explanation?Regards,JP Link to comment Share on other sites More sharing options...
Driver170 6 Posted August 27, 2015 Author Share Posted August 27, 2015 I'm not sure what is at fault or why the discrepancy? But i'll just have to make sure i land with more than CNR.Hopefully someone has an answer? Link to comment Share on other sites More sharing options...
BW901 58 Posted August 27, 2015 Share Posted August 27, 2015 Taxi-in fuel? Link to comment Share on other sites More sharing options...
Driver170 6 Posted August 27, 2015 Author Share Posted August 27, 2015 No its more than 200kg taxi. I'm using the 737 NGX. Link to comment Share on other sites More sharing options...
BW901 58 Posted August 27, 2015 Share Posted August 27, 2015 I just did a test with the 737-800 bundled with PFPX, LGW-ATHSummary Page shows release Fuel = 10831kg. Taxi out 120kg. Trip 8109kg. Remaining 2542kg.So 10831-120-8109-60 = 2542kg. The 60kg is 5mins taxi-in @ 12kg/min.Similar thing on a customised detailed 752W, a 747-200 freighter and the Q400. My default settings are allowing for 10min taxi-out fuel and then 5min taxi-in.Unless I'm mis-interpreting your query. Link to comment Share on other sites More sharing options...
Driver170 6 Posted August 27, 2015 Author Share Posted August 27, 2015 Thanks for doing that for me!But my query is, check the OFP at DEST fuel!? This will be more than the SUMMARY remaining at DEST... Link to comment Share on other sites More sharing options...
BW901 58 Posted August 27, 2015 Share Posted August 27, 2015 Hi Driver, I don't see an issue with the default PFPX OFP.Re-ran LGW-ATH with the 738. OFP fuel remaining at destination (landing fuel) shows as 2.6 tonnes. The SUMMARY page remaining shows 2552kg, but that is on-chocks fuel, not landing fuel, so when taxi-in is added back the adjusted SUMMARY landing fuel would be 2612kg.CheersJon Link to comment Share on other sites More sharing options...
Driver170 6 Posted August 27, 2015 Author Share Posted August 27, 2015 Hi jon. I'm using a Ryanair OFP template not sure if thats making the difference!? Will check again tonight.I will test the same as your plan but with PFPX default OFP. But surely it doesn't matter what i use? Link to comment Share on other sites More sharing options...
Driver170 6 Posted August 27, 2015 Author Share Posted August 27, 2015 Just done a test i see it now. its the taxi fuel that was missing. cheers Link to comment Share on other sites More sharing options...
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