Piper AZTEC D PA-23-250 Owner's Handbook Manual page 76

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Power Setting Table (Cruise) ·-Lycoming M · o del I0-540-C485, 250 HP Engine
Normal Intermediate
Economy Long Range
Cruise Cruise Cruise Cruise
Approx 210 HP Approx 190 HP Approx 175 HP Approx 140 HP
RPM MP
RPM MP RPM MP RPM MP
2400 26.0 2200 26.0 2200 24.0 2100
21.0
2300 25.0
2300 23.2 2200 20.0
2400 24.0
2400 22.4 2300 19.3
1. To maintain constant Power, correct manifold pressure approximately 0.17'' Hg. for each 10° F
variation in induction air temperature from standard altitude temperature. Add manifold pressure
for air temperatures above standard; subtract for temperatures below standard.
2. To determine fuel consumption for these power settings refer to the Fuel Consumption Chart •
3. When using Hartzell Propeller HC·E2YR-2RB/8465·7R with 10·540-C4BS engine. DO NOT
EXCEED 27'' MANIFOLD PRESSURE BELOW 2300 RPM or 25" BELOW 2000 RPM.
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