Ok maybe some one who knows CFG files better than me can help.I was recently flying the Jet City 717 and noticed that I can not reach the specs in Altitude in their read me file.It states....MAXIMUM OPERATIONAL ALTITUDE37,000 feet AGLOf which it is not able to obtain, so I got to looking in the CFG file and noticed this line...[GENERAL]atc_type = BOEINGatc_model = B717Editable = 0performance = Please refer to the README file included with this aircraft for important information about the operation of this 717-200 airliner.Category=airplaneIt has no performance data. I notice that all my other aircraft have this data. It was not only the altitude that I noticed as a problem but the fuel consumption as well...kinda looked like a stop watch with a turbo going backwards on the fuel gauge. It seemed overly high to me.The fuel flow scalar for the JCA is: 0.8 while the SGA DC-9 is at 1.226 I understand that these are different aircraft and engines, but is 0.8 realistic?I looked at one of my SGA DC-9's this is it's general file data.[General]editable=0 atc_type=MCDONNELLDOUGLAS atc_model=DC9 performance=SGA DC9-51, Copyright SGA 2004\n\nModel:\t\tErick Cantu\nFlight Dynamics:\tV9.1.1 by Fraser W. Turner\nXML Anim Code:\tFraser W. Turner\n\nInformation\nEngines:\t\tJT8D-17A @ 15200lbs MCT\nMTOW:\t\t123,200 lbs\nMLW:\t\t110,000 lbs\nZFW:\t\t100,500 lbs\nVmo:\t\t350 Kias\nMmo:\t\tM0.84\nMax Altitude:\t35,000 Ft\n\nCategory=airplaneHow can I correct these 2 issues, is it just a matter of finding another CFG file close to the 717 specs and editing the data?The JCA read me file has all the spec data such as...WEIGHT LIMITATIONSFUEL REQUIREMENTS AND CAPACITIESAIRSPEED LIMITATIONSFLAPS EXTEND MAX SPEEDSLANDING GEAR MAX OPERATING SPEEDSMAXIMUM OPERATIONAL ALTITUDETAKEOFF AND LANDING LIMITATIONSAnd even more, getting the data is not the problem. It's what data do I need from the read me file, cause to be honest I have NO ideal what this line is...\n\nInformation\nEngines:\t\tJT8D-17A @ 15200lbs MCT\nMTOW:\t\t123,200 lbs\nMLW:\t\t110,000 lbs\nZFW:\t\t100,500 lbs\I did however figure these out...nVmo:\t\t350 Kias\nMmo:\t\tM0.84\nMax Altitude:\t35,000 Ft\n\nSo the question is, can I use this file and edit it to the specs from the read me file I have, and which specs are needed? And lastly is the fuel flow scalar correct?Look forward to any comments or suggestions they will be greatly appreciated.UPDATE: 37.000 ft was obtained but KIAS never got above 190 knts, what issues need to be corrected with this CFG file.Cheers Ari

The performance field is only for information only. It's the data that is visible when you bring up a preview of the aircraft. It has no effect on the sim. The rest of the data in the aircraft.cfg and the .air files defines the models FDE. As for being able to reach it's Max operational altitude, it probably can at a lesser weight, the airlines do this with step climbs. They will climb to an initial altitude, then as fuel burns off, and the aircraft becomes lighter, they will climb to higher altitudes. If the model has an FMC you can usually see the current optimum, and max altitude there, for instance on the 767's FMC, it's on the VNAV CRZ page. It will also calculate the appropriate and most efficient time to initiate a step climb.

UPDATE: 37.000 ft was obtained but KIAS never got above 190 knts, what issues need to be corrected with this CFG file.

ari:SIMPLIFIED basics of jet flight: climb (no FMC and/or aircraft without climb mode logic modeled)* for takeoff set throttle to 98% N1* at rotation speed (Vr) pitch up to 8deg, after postive rate increase pitch to hold about 160 kts airspeed (raise gear)* >2500' above runway decrease throttles to 92% N1* >2500' above runway decrease pitch and allow aircraft to increase airspeed (IAS) to 250 kts. (retract flaps as appropriate)* when IAS is 250 kts increase pitch to hold 250kts. DON'T reduce thrust, keep adjusting throttles to hold N1 of 92%* when above 10000' (USA) decrease pitch and allow aircraft to increase IAS to 290 knots.* when at 290 kts IAS increase pitch to hold 290kts.* keep adjusting pitch as aircraft climbs to cruise altitide to hold 290 kts. keep throttles at 92% N1. (adjustment of pitch and throttle setting will be necessary to hold N1 and IAS).* at FL260 to FL280 mach speed will increase to M0.74. once mach is 0.74 adjust pitch to hold M0.74 for remainder of climb. at high altitude you fly to a set MACH speed, not knots. continue to monitor thrust. keep N1 no greater than 96%, and no less than 92%* once you reach cruise altitude keep throttles at 92-95% N1 and allow aircraft to accelerate to cruise speed (for a 717 this will be M0.78-M0.82).* once at cruise speed adjust thrust to hold M0.78 - 0.82). a positive pitch of 3-4deg is normal at level cruise. greater than 4ish degrees pitch means you are too high for the aircraft's weight.NOTE: as you climb higher the climb rate (vertical speed) will decrease. this is NORMAL. an initial climb rate above 2000'/min is expected. above FL3000 a climb rate of 1200 or lower is standard. when above FL350 you may be climbing at 500-800'/min.summary: adjust PITCH to hold set airspeed. do not decrease throttles. set throttle at 92% N1 for climb and adjust to hold this N1 setting.--

So at 37000 ft, a 190 kts would be correct, cause that's all the speed it was able to obtain. The IAS was on hold at 280 kts...and what about the fuel flow scalar? Would this number be correct? Seems like it's eating alot of fuel at that Altitude, at that speed.CheersAri

So at 37000 ft, a 190 kts would be correct, cause that's all the speed it was able to obtain.

ari:if you are attempting to climb at to high a vertical speed ... yes.as i outlined when you are in the high-20s in altitude you no longer fly according to IAS ... you fly a MACH speed. climb mach is, in almost all cases, slower than cruise mach.

The IAS was on hold at 280 kts

i am not aware of any transport jet with a load of passengers, cargo and fuel that can climb at 280kts IAS above FL300 and expect to reach cruise altitude in the high 30's at a v/s above 500'/min (or less!).also, at cruise at FL370 you will not fly a IAS ... you will fly a MACH. review my post about how to climb to altitude and then accelerate to cruise speed.

...and what about the fuel flow scalar? Would this number be correct? Seems like it's eating alot of fuel at that Altitude, at that speed.

no idea ... i don't have the product; nor have i ever done an detailed search for 717/MD95 performance information.--

Sorry for the confusion scoob, but I am not climbing to that altitude at those IAS or mach numbers....I am already at that altitude and can not do more than 190 kts or whatever the MACH number might be. I've read what your first post said and understand it, however you second comments, posting some of your words in caps as if I didn't understand you the first time is not answering the question. It stated "So at 37000 ft, " i.e " meaning at altitude" a 190 kts would be correct, cause that's all the speed it was able to obtain" . I also corrected the topic by saying "UPDATE: 37,000 ft was obtained but KIAS never got above 190 knts, what issues need to be corrected with this CFG file."No I am not a professional pilot, I try to learn this hobby for fun, not just the flying but some of the other things that make all this work correctly, but since it seems that I'm not a REAL world pilot I should be talked do to... sorry for the confusion ...trust me won't happen again here.Thanks for the comments..I'll look else where.