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Bloody Underpowered 737!

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yes, like real life. next time you fly real-world look at your watch at takeoff ... and then once the aircraft is a cruise. you DON'T get to TOC in 8, 10, or 15 minutes.in general for modern jetliners -737s and A32x's have a climb to cruise time of about 25 minutes767s and A330s have a climb to cruise time of about 22 minutes747s and A340s have a climb to cruise time of about 27 minutesa cessna doesn't fly at +800 VS when at FL370 :( :( ... to be honest a cessna will not have a climb rate of +800 if climbing at a set IAS to 8000'.this is not how you climb in a jetliner. you climb at a set IAS and then mach (above ~ FL260-FL280). you adjust pitch (ie, VS) to hold the most efficient airspeed.you don't fly at max mach. a 737NG is going to cruise at around M0.78 (a 737classic is going to cruise at M0.74)... jet fuel costs money; and speed costs money.then don't touch anything. climb in VNAV. the FMC will calculate the most efficient climb speed/rate.IMO most addons (and the MS provided 'standard' aircraft are even worse) are VERY overpowered and don't have realistic climb and/or cruise profiles.a few addos have relistic performance ... PMDG is one of the best in getting the performance 'numbers' right (within FS's limits and faults).--
Ok im a little confused here. I was on VATSIM the other day flying the B752. And the controller said "Expect cruising Alt FL370 10 minutes after departure" And your saying it take over 20 minutes for a airliner to reach its CRZ ALT? Im a little confused :(
the controller said "Expect cruising Alt FL370 10 minutes after departure" And your saying it take over 20 minutes for a airliner to reach its CRZ ALT? Im a little confused :(
It is for you to expect a clearance to FL370 in 10 minutes, not for him to expect you to get up to FL370 in 10 minutes.

Jason

FAA CPL SEL MEL IR CFI-I MEI AGI

  • Author
It is for you to expect a clearance to FL370 in 10 minutes, not for him to expect you to get up to FL370 in 10 minutes.
Oh dear :(
Oh dear :(
Remember CRAFT for an standard issue of clearanceClearance limitRouteAltitudeFrequencyTransponderAnyway, I can see where you are coming from thinking that the 737 is seriously underpowered. But actually it is not. The real 737s aren't underpowered and PMDG 737 faithfully simulates its real world counterpart. If you want realism, assure yourself that the PMDG 737 is right and take on the training and practice from there.

Jason

FAA CPL SEL MEL IR CFI-I MEI AGI

You ARE using the FMC, aren't you? Trust me, the PMDG FMC will get you to your PROGRAMMED CRZ FL if it's possible (left in VNAV) if you've programmed it correctly. If you try to put in a cruise level that's too high for the weight it'll tell you. I generally cruise at around FL350 at 'average' weights in the 738, step climbing higher as the weights decrease. I rarely get above FL380 in the 737, although it has happened.Cheers, SLuggy

I do not have a signature. Why are you reading this?

Remember CRAFT for an standard issue of clearanceClearance limitRouteAltitudeFrequencyTransponderAnyway, I can see where you are coming from thinking that the 737 is seriously underpowered. But actually it is not. The real 737s aren't underpowered and PMDG 737 faithfully simulates its real world counterpart. If you want realism, assure yourself that the PMDG 737 is right and take on the training and practice from there.
True, and really the only reason the "expect FLXXX in 10 minutes" is issued is in the event of a radio failure and all communication with ATC is lost (in real life). The airspace is cleared for you so that if you do lose comms with ATC, they will plan on you being at that altitude past that time and can clear the airspace accordingly.Search the internet for "Radio Failure Procedures" and it will explain it a lot more in-depth.The 737 isn't too underpowered, it is just that the 757/767 are very over-powered. Every airplane is flown by airspeed. You climb/cruise/descend at the published airspeeds provided to you by charts, and accept whatever VS is handed to you - unless specifically told otherwise or for emergency purposes (non-standard procedures).
It is for you to expect a clearance to FL370 in 10 minutes, not for him to expect you to get up to FL370 in 10 minutes.
Correct
Remember CRAFT for an standard issue of clearanceClearance limitRouteAltitudeFrequencyTransponder
That only applies for a departure clearance. Once you are up, the rules of the game are completely different
True, and really the only reason the "expect FLXXX in 10 minutes" is issued is in the event of a radio failure and all communication with ATC is lost (in real life). The airspace is cleared for you so that if you do lose comms with ATC, they will plan on you being at that altitude past that time and can clear the airspace accordingly.
Only if it is climbing. If you are at FL290 and ATC tells you expect FL310 in XX mins AND you lose comms before those XX mins, you can climb to that new level. If on the other hand, you are at FL310 and ATC tells you expect FL290 in XX mins and you lose comms before those XX mins, you'd stay on your current (higher) level.The altitude/level to fly once you have comms failure should be the highest of: Filed (in FPL), cleared to, current or expected.But it surely isn't the only reason for ATC to tell you "expect FLXXX in 10 minutes". The primary reason for ATC to issue a time (in this case) is because you have a convergent traffic and you both would create a conflict if you both fly at the same level. So the number actually is a rough estimate that the ATC guy makes to inform you when you may continue your climb or descent.Best regards

Ed Ocampo
Staff Reviewer
AVSIM Online
[email protected]

pilot.gif
Fly DC Jets

Buy Topcat if you can afford it. It supports PMDG B737-700 & B737-800 models.You input the departure and destination and the loads and it will work out for you your fule, take off trim values and TO speeds including derated, etc. You can then load fueland load configuration straight into the model. If you are conversant with VNAV-LNAV, etc your flight will fly in a professional manner. - Worth noting that I am not part ofTOPCAT's team nor do I benefit financially or otherwise, only in the sheer pleasureof using this software.Regards

Joaquin Blanco

Intel Core i9-9900K at 5Ghz, Corsair Hydro H100i RGB PLATINUM CPU cooler, Asus ROG STRIX Z390-E,Motherboard, NVIDIA GeForce RTX 2080 Super 8GB GDDR6, G.Skill Trident Z RGB 32GB DDR4 3200MHz Memory, 500GB Samsung 970 EVO PLUS M.2 PCIe,2TB Samsung 860 QVO Solid State Drive, 2TB, 2 x Samsung 860 Evo 2TB, 1 x 1TB Samsung 860 Evo, Corsair RM650x 80 PLUS Gold 650W PSU.

 

 

 

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