33
Cruise performance data in handbook is based on a recommended lean mixture setting which may
be established using the T.I.T indicator at powers of 88% MCP and below as follows:
1. Lean the mixture slowly until the T.I.T peaks and begins to drop or until reaching the T.I.T red line
2. Enrichen the mixture 50F rich of peak T.I.T or red line (whichever is lower) for recommended lean
or
a desired increment based on the data in Figure 4-4, T.I.T table
At maximum cruise power settings, the 1685 F limit (red line) T.I.T may occur before reaching peak
T.I.T. In this case, enrichen the mixture from redline 50 F for Recommended Lean Mixture. Any
change in altitude or power setting will require a change in the recommended lean mixture setting
and a recheck of the T.I.T setting
NOTE
OPERATION ON THE LEAN SIDE OF PEAK T.I.T IS NOT APPROVED
STALLS
Characteristics are conventional and aural warning 5-10 knot above the stall in all configurations
Altitude loss during stall recovery may be as much as 300 ft
DESCENT
1. Power – As Desired
2. Mixture – Enrichen as required
3. Cowl Flaps – Closed
4. Altimeter – Set
5. Fuel Selector Valve – Both
6. Wing Flaps – As desired (0° - 10° below 140 KIAS; 10° - 20° below 120 KIAS; 20° - full below 100 KIAS)
Amplified Procedures
Descent should be at approx. 500 ft FPM, using enough engine power to keep the engine warm
Optimum engine RPM in a letdown is usually the lowest RPM in the green arc range that will allow
cylinder head temperature to remain in the recommended operating range
BEFORE LANDING
1. Pilot and Passenger Seat Backs – Most upright position
2. Seat and Seat Belts – Secured and Locked
3. Fuel Selector Valve – Both
4. Mixture – Rich
5. Propeller – High RPM
6. Landing/Taxi Lights – ON
7. Autopilot (if installed) – OFF
To Next Page
Loading...
