Power Plant Instrument Markings; Tachometer; Oil Temperature; Oil Pressure - Piper PA-24-250 COMANCHE Pilot Operating Handbook

Aircrdt Publications
Piper Corn:inchc
? j ( l
(Early blodel)
Section
-
2
Limitations
POWER PLANT INSTRUMENT MARKINGS
I.) Tachometer:
....................................................... Green Arc (Normal Operating Range)
500 to 2575 rpm
........................................................................
Red Line (Maximum Continuous)
2575 rpm
2.) Oil Temperature:
Green Arc (Normal Operating Range) ........................................ 120-245 Degrees Fahrenheit
.....................................................
Yellow Arc (Caution Range)
60-120 Degrees Fahrenheit
Red Line (Maximum Temperature) ..............................................
245 Degrees Fahrenheit
3.) Oil Pressure:
...................................................................
Green Arc (Normal Operating Range)
60-85 psi
.....................
Yellow Arc (Caution Range)
. .
.................................... 25-60 and 85-100 psi
. .
........................................................................................
Red Line (Mmmum psi)
25 psi
........................................................................................
Red Line (Maximum psi)
100 psi
4.) Fuel Pressure:
..........................................................
Green Arc (Normal Operating Range)
0.5 to 5.0 psi
. .
................................................................
.....................
Red Line (M~mmum psi)
. .
0.5 psi
............................................................................................
Red Line (Maximum psi)
5.0 psi
5.) Cylinder Head Temperature:
...................................
Green Arc (Normal Operating Range)
200-500 Degrees Fahrenheit
...................................................
Red Line (Minimum Temperature)
200 Degrees Fahrenheit
...............................................
Red Line (Maximum Temperature)
500 Degrees Fahrenheit
6.) Instrument Vacuum:
......................................................
Green Arc (Normal Operating Range)
4.8 t o 5.1 in Hg
. .
...................................................................................
Red Line (Mmmum Suction)
4.8 in Hg
...............................................................................
Red Line (Maximum Suction)
5.1 in Hg
AIRSPEED INDICATOR MARKINGS
.....................................................................
Red Line (Never Exceed Speed)
227 mph 197 kt
**
WARNING
**
AD 72-22-05 may reduce Red Line to 203 rnph
CAS
(176 kt) or 188 rnph
CAS
(163 kt) depending
on how the airplane is modified. Refer to the
AD for the airspeed applicable to your airplane.
...................
...............................
Yellow Arc (Caution Range)
. .
180-227 mph 156-197 kt
...................
.................
Green Arc (Normal Operating Range)
. . . .
71-180 mph 62-156 kt
.......................................................................
White Arc (Flaps Down) 64-125 mph 56-108 kt
FAA APPROVED (November 10, 1993)
Copyright: 1993
AIRPLANE FLIGHT MANUAL
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