• Fuel flow is a lot higher in v1.2.7

• Speed on the FPLN pags jumps between current speed and -0.02M

• ETA increases during flight, e.g. 1.2 after liftoff to 3.5 close to T/D

• DECEL wp not fixed on MANUAL leg, IF shows FCU ALT iso realistic altitude, even though correctly shown on VSD

• EFOB mismatch on PERF and FPLN page during descent

• turn predictions shown on MAP routing

• TRK change drawn at FAP, magvar issue?

• DES MACH .84, regardless of CRZ MACH

Edited October 24Oct 24 by spottersim

Fix	FL plan / sim	Mach plan / sim	OAT plan / sim (°C)	TAS plan / sim (kt)	TAS from Mach + OAT (kt)	FF plan / sim (kg/h)	ΔFF	Time vs OFP (min)	Extra fuel used (kg)
BEALE	350 / 349	.84 / .849	−46 / −47	493 / 498	498	6,550 / 7,439	+13.6%	−0.6	+302
MLF	350 / 349	.84 / .849	−47 / −46	491 / 498	499	6,511 / 7,595	+16.6%	−0.7	+556
KU78S	370 / 371	.84 / .850	−48 / −48	491 / 496	497	6,608 / 6,985	+5.7%	−1.3	+949
KU03U	370 / 372	.84 / .851	−48 / −46	491 / 499	500	6,474 / 6,942	+7.2%	−1.6	+1,083
ISN	370 / 373	.84 / .849	−49 / −52	489 / 491	492	6,276 / 6,783	+8.1%	−1.6	+1,279
AMENU	370 / 373	.84 / .847	−53 / −54	485 / 488	489	6,136 / 6,547	+6.7%	−1.8	+1,504
POPLR	370 / 373	.84 / .846	−55 / −56	482 / 486	486	6,093 / 6,499	+6.7%	−2.0	+1,591
57N090W	370 / 369	.84 / .845	−57 / −58	480 / 482	483	6,002 / 6,260	+4.3%	−2.3	+1,803
PIDSO	390 / 375	.84 / .847	−48 / −48	489 / 495	495	5,842 / 6,358	+8.8%*	−4.2	+2,358
60N050W	390 / 373	.84 / .850	−48 / −48	491 / 497	497	5,896 / 6,342	+7.6%*	−4.5	+2,518
59N040W	390 / 371	.83 / .849	−46 / −44	490 / 500	501	5,739 / 6,346	+10.6%*	−5.1	+2,799
58N030W	390 / 371	.83 / .847	−44 / −44	490 / 499	500	5,705 / 6,367	+11.6%*	−5.5	+3,118
56N020W	390 / 377	.83 / .835	−47 / −52	486 / 484	484	5,586 / 6,113	+9.4%*	−5.6	+3,540
CON	390 / 384	.83 / .838	−60 / −62	472 / 474	475	5,286 / 5,329	+0.8%*	−6.3	+3,677
MID	390 / 383	.82 / .831	−61 / −61	467 / 472	472	5,078 / 5,079	0.0%*	−6.8	+3,715

Plus one.
Fuel consumption has definitely been an issue in my experience as well. Someone mentioned that increasing the Fuel bias from P03 to P06 in SimBrief solved most of the problem. I've also tried that without much success.

Edited October 25Oct 25 by Bacsa Attila

3 hours ago, Bacsa Attila said:

Plus one.
Fuel consumption has definitely been an issue in my experience as well.

I made some measurements and comparations here, if you want to check, maybe it's helpful: https://forum.inibuilds.com/topic/41833-127-fuel-flow-increased-significantly/#findComment-101882

1 hour ago, klusik said:

I made some measurements and comparations here, if you want to check, maybe it's helpful: https://forum.inibuilds.com/topic/41833-127-fuel-flow-increased-significantly/#findComment-101882

Thank you!
I'll do a flight again today with P06 instead of P03, and see how it performs. 😉

3 hours ago, klusik said:

I made some measurements and comparations here, if you want to check, maybe it's helpful: https://forum.inibuilds.com/topic/41833-127-fuel-flow-increased-significantly/#findComment-101882

Unfortunatelly, it does not seem to solve much of the problem for me. Right after setting up the FMS, I got the DEST EFOB warning and was way below the planned fuel profile.

I flew a 13 h flight from RJTT to EKCH. At fuel factor P06 in simbrief, it suggested 91400 kg block fuel. I went for 95000 kg, and vacated the runway with 7000 kg FOB (at my destination on the first approach). In other words, this was about right, and I would probably have been in the drink if I had taken the default simbrief number.

Edited October 25Oct 25 by Gungnir

1 hour ago, Gungnir said:

I flew a 13 h flight from RJTT to EKCH. At fuel factor P06 in simbrief, it suggested 91400 kg block fuel. I went for 95000 kg, and vacated the runway with 7000 kg FOB (at my destination on the first approach). In other words, this was about right, and I would probably have been in the drink if I had taken the default simbrief number.

Eyup :-) I am used to take 30 minutes ATC reserve and 60 minutes Weather reserve anyways on each long flight (if possible), so that probably saved me before :-D

2 hours ago, Bacsa Attila said:

Unfortunatelly, it does not seem to solve much of the problem for me. Right after setting up the FMS, I got the DEST EFOB warning and was way below the planned fuel profile.

It's possible, the fuel factor is just a general number for engine efficiency, nothing else. And it's kinda a workaround, the real fix is either fix the simbrief A350 profiles, or maybe better find why the iniA350 is such eater in 1.2.7 :-)

2 hours ago, Bacsa Attila said:

Unfortunatelly, it does not seem to solve much of the problem for me. Right after setting up the FMS, I got the DEST EFOB warning and was way below the planned fuel profile.

Btw. DEST EFOB right after setting it up, it varies. It needs to have all step climbs programmed and the current winds for ALL flight stages uploaded/filled manually. What the "fuel estimation" by plane itself says? (INIT page, fuel area, you can fill up the number of let the aircraft compute some guess)

8 minutes ago, klusik said:

Btw. DEST EFOB right after setting it up, it varies. It needs to have all step climbs programmed and the current winds for ALL flight stages uploaded/filled manually. What the "fuel estimation" by plane itself says? (INIT page, fuel area, you can fill up the number of let the aircraft compute some guess)

Yup. Step alts added and uploaded the winds via CPNY WIND. Same procedure as before 1.2.7. On the FUEL&LOAD page I set the values according to the OFP and I check that MIN FUEL AT DEST matches the reserve in the plan.

I guess you are right. There will have to be a fix on SimBrief's or iniBuilds' side.

Edited October 25Oct 25 by Bacsa Attila

Hi everyone,

I've logged this with the team to review.

Appreciate your patience!