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 comp