Hello again,
Papingo´s coments on "fast bricks" spurred a little investigation into the FS98 Me-262 .air file. At first I had found Rabbidja Guder´s example .air file that came with the original AF99 CD, but unfortunately I was unable to stable its constant soaring, so I settled for the .air file that comes with Berndt Drehfalhl´s Me 262.
This one was rather easy to stabilize, and I found that it was rather souped up:
It was doing 587 mph at S.L., with 105% N1/N2, (thatever that would mean as turbojets are single-spool, both compressor and turbine running at the same RPM), and thrust was also a bit high, at 2496 flb.
S.L. specification states 1980 flb thrust at 8700 RPM, and 560 mph max. level speed. Presumably, this would be a maximum continuous speed, and there is no reference to any kind of short-duration extra power coming from boost-bursts or afterburners.
I managed to tone it down a bit by reducing the thrust entry and tweaking the RPM entries for idle (3000 RPM) and maximum RPM, and after this I got a more reasonable S.L. performance of 560.7 mph with 2212 flb thrust, and then I also got a very plausible 90% power performance of 526 mph at 1871 flb thrust, with 97% N1 and 101% N2.
However, one thing which is turning out to be very difficult to adjust, is to get the maximum RPM down to 8700 RPM corresponding to full power. At the moment it is at 10000 RPM.
Update:
There is a clarification to this respect: Remember that the N2 Turbine gauge gives %RPM, not real RPM, so in this case, 10000 is really 100% of full RPM - so changing the scale to have 8700 RPM at this position would solve the dilema. Using the default N1/N2 B737-400 gauge, when N1/N2=100% thrust is just over 2000 flb, very near the specified 1980 flb for max. continuous. I doubt whether the simulator .exe could ever give a real N2 RPM value, as it seems only to function with %RPM. So, the dial would have to be doctored in such a way to read 8700 RPM here. Of course, the position of the needle compared to the real RPM instrument is quite another matter, as would be the range of the scale on the dial.
Anyway, perhaps the FD can be of help for Papingo, so I have included the modified .air file with this post.
Cheers,
Aleatorylamp
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