Post by BW901 on Jul 24, 2021 17:25:36 GMT
Felis has initially modelled PW engines, ostensibly based on the JT9D-7J.
Detailed information for the -7J is scarce as hen's teeth. This PFPX file is based on the JT9D-7Q. That's a more powerful version of the engine, with altitude limits around 1000-1500ft higher than for the 7J as a result of the higher thrust, so bear that in mind - please let me have feedback in this thread and I can look to adjust maximum altitudes accordingly if it's a problem. Optimum altitudes shouldn't be much different, there's little variance in fuel burn, you may find based on experience that you want to apply a bias of -1% or -2% on the fuel burn. Different airlines used various climb and descent schedules and I have included as many as I could find from historic manuals from multiple companies, plus there's a wide cruise speed range included.
Detailed information for the -7J is scarce as hen's teeth. This PFPX file is based on the JT9D-7Q. That's a more powerful version of the engine, with altitude limits around 1000-1500ft higher than for the 7J as a result of the higher thrust, so bear that in mind - please let me have feedback in this thread and I can look to adjust maximum altitudes accordingly if it's a problem. Optimum altitudes shouldn't be much different, there's little variance in fuel burn, you may find based on experience that you want to apply a bias of -1% or -2% on the fuel burn. Different airlines used various climb and descent schedules and I have included as many as I could find from historic manuals from multiple companies, plus there's a wide cruise speed range included.
Installation instructions are here installation instructions
GE and RR files will be coming soon, and variations will be made available once the cargo version is released.
