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Hi, I have run this performance test on X-Plane 11 (I don´t even have XP10 installed anymore), but I don´t think anything should have changed with regard to the performance. I have used my official flight planning data for the 737-300 I used to fly. These are the test parameters: Airport at sea level Temperature ISA +10 (25C). Brake release weight 58.000kgs. No wind. Climb schedule: V2+15 to 1500 feet. Then 250kts to 10.000 feet. Then 290kts until Mach is 0.74. Then 0.74. Full climb power. Watch for the IAS/MACH changeover, if you are on FL CHG it will automatically change from 290 to 0.71 at ca. 26.000 feet. That is too early, you need to revert manually to IAS and switch over when the speed reaches M.74 (c/o button). Here are the values I get (first the flight test values with IXEG 1.21, then the values from the book): Altitude Distance(IXEG) Distance (Real aircraft) Time (IXEG) Time (Real aircraft) 6.000 11.2 10 3:25 3 10.000 18.2 17 4:54 5 14.000 29.8 29 6:59 7 20.000 48.3 47 9:59 10 24.000 64.9 65 12:29 12 28.000 86.4 89 15:33 16 31.000 102.3 104 17:46 18 33.000 117.0 125 19:50 20 Climb rate just before reaching 33.000 feet was 800 feet per minute. Cheers, Jan

Hello. To me, the climb performance appears a bit implausible. Took off from EDDL to LGKR today under following conditions: - ISA conditions ( 15°C / Q1013 ) - zero wind ( ground & aloft ) - TOW 58039kg - CLB rating ( ca. 93% N1 ) - climb schedule 250/280/0.74 - no Anti Ice required - RFL 330 According to Simbrief, a total distance of 117NM was expected for the Climb to FL330. Actually it took 170NM ( 53NM more than predicted ). Vertical speed was less than 1000ft/min after passing FL240... With Mach0.74 vertical speed was 500ft/min after passing FL305. Average rate of climb from 150ft to FL330 was 1130ft/min. ( 29 Minutes ) This performance does’nt appear very convincing to me. Is this a problem with the XPlane 10 Flightmodel in general or with the IXEG internal modeling? Thanks and best regards EDIT: I‘ve got the impression, that other Add on Aircraft are facing the same problem, such as the FF A320. So probably an xPlane 10 inherent issue...?

Well it's modeling the real world behavior where the spot lights to illuminate the logo are situated in the little tails at the end of the wing. Since the winglets replace those you cannot have both logo lights and winglets at the same time (IRL and IXEG). Also 737-300s leaving the factory did not have winglets and when retrofitting them they (usually?) keep the switches as they were and just stick an INOP sticker on them. So IXEG is following real world practice here.

Hi Ben, fresh Demo Installation + Gizmo + Saab is still not working. See screenshot. This seems to be same or similar issue: BTW, same thing happens with IXEG 737.