OK, that was laborious!
Loaded the modded G36 up to max gross (3,650 lbs.). Set throttle to max, pitch fully fine. i.e. 2,700RPM., selected FLC @ 100Kts. Note that 100Kts is the G36’s best rate of climb speed. I eventually got to 20,000ft. but 18,000 - 20,000 was a tough slog. Performance along the way:
8,000ft.: 900FPM, 22"MP, -1°C
10,000ft.: 700FPM, 20"MP, -5°C
12,000ft.: 600FPM, 19"MP, -9°C
14,000ft.: 450FPM, 17"MP, -13°C
16,000ft.: 350FPM, 16"MP, -17°C
18,000ft.: 200FPM, 15"MP, -21°C
20,000ft.: varied 0 - 100FPM, 14"MP, -25°C
I think this is VERY close to POH numbers, so good job to the mod team!
I stupidly only belatedly thought of the fact that screenshots are a much easier way of recording the data than hand writing it!
18,000ft:
20,000ft.
