rbp Posted May 8, 2023 Report Posted May 8, 2023 I wrote a program to analyze the EIS data to calculate performance empirically Here are two flights, and I now know that 7500' 2400/30 => 172KTAS at 18GPH 9500' 2400/30 => 173.5 KTAS at 18GPH my target TIT is 1550 this should allow me to: * do better trip planning * track long-term performance changes * compare my airframe against other Bravos * compare the efficiency of the Bravo fleet against the against, say, the Ovations Others could use this to compare LOP and ROP operations (I don't run LOP) Next up, calculating average weight for the segment using the BEW + the fuel totalizer + an estimated 2 pax (the other rows are the airplane settling down in cruise and adjusting MP/RPM/mixtture) 2 Quote
carusoam Posted May 8, 2023 Report Posted May 8, 2023 Way cooool rbp! EIS supplies tons of real data to work with. Amazing detail. Best regards, -a- 1 Quote
rbp Posted May 8, 2023 Author Report Posted May 8, 2023 If anyone has some log files for me to try, please PM me. currently only works if the log is version 1.02. first line will have log_content_version="1.02". let me know if you're OK with me sharing the results publicly, with your name or anonymously Quote
rbp Posted June 5, 2023 Author Report Posted June 5, 2023 I wrote another program today that looks at the log file and calculates the take off distance for that flight. for example, here's the results from a departure from HPN. Since I almost always put in full power before releasing the brakes, that's how I choose to determine where the beginning of the T/O roll is, and this most closely mirrors what one would do for a short-field takeoff it took 1314 ft the air/data computer hadn't yet calculated the windspeed, so it spits out 'nan', but you can tell that it was about 8kts based on GS - IAS Quote
rbp Posted June 5, 2023 Author Report Posted June 5, 2023 here's another one departing Palm Beach North county with full fuel, 70# of luggage, one soul Quote
rbp Posted June 5, 2023 Author Report Posted June 5, 2023 Now calculates head/tailwind, weight of fuel, and a link to the position of the departure Quote
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