Rans Inc.
Section 8
Model S-7LS COURIER
Required Placards and Markings
REVISION - A May 8, 2007
8- 2
AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their color code meanings are shown in Table 8-1.
Marking
IAS Value or
Range(mph)
Meaning
White Arc
45 - 69
Full Flap Operating Range. Lower limit is maximum weight
stalling speed in landing configuration. Upper limit is
maximum speed permissible with flaps extended.
Green Arc 50 - 97
Normal Operating Range. Lower limit is maximum weight
VS at most forward CG with flaps retracted. Upper limit is
maximum structural cruising speed.
Marking
IAS Value or
Range(mph)
Meaning
Yellow Arc 97 - 128
Operation must be conducted with caution and in smooth
air only.
Red Line
128
Maximum speed for all operations
Table 8-1: Airspeed Indicator Markings
POWER PLANT INSTRUMENT MARKINGS
Power plant instrument markings and their color code meanings are shown in Table 8-2.
Red Line
Green Arc
Yellow Arc
Red Line
Instrument
Minimum
Limit
Normal
Operating
Caution Area
Maximum
Limit
Tachometer
1400 – 5500 RPM
5500 – 5800 RPM
5800 RPM
Cylinder Head
Temperature
275
°
F
Oil
Temperature
120° F
190° –230° F
230° - 266° F
266°
Oil Pressure
12 PSI
29 – 73 PSI
100 PSI
Table 8-2: Power plant instrument Markings