Flight Manuals and Other Documents

Maximum 245 II5 T 200 I00 P M E °F I0 I5 0 0 60 20 P S I R E S Normal operating range P S 75 0 OIL Minimum Figure 9-3. Minimum, maximum, and normal operating range markings on oil gauge. Figure 9-1. Single-engine airspeed indicator. a red radial line and the normal operating range with a green arc. [Figure 9-4] Some instruments may have a yellow arc In addition to the markings listed above, small multi-engine to indicate a caution area. airplanes have a red radial line to indicate single-engine minimum controllable airspeed (V MC ). A blue radial line Weight and Loading Distribution is used to indicate single-engine best rate of climb speed at Weight and Loading Distribution contains the maximum maximum weight at sea level (V ). [Figure 9-2] YSE certificated weights, as well as the center of gravity (CG) range. The location of the reference datum used in balance Powerplant computations is included in this section. Weight and balance The Powerplant Limitations portion describes operating computations are not provided in this area, but rather in the limitations on an aircraft’s reciprocating or turbine engine(s). weight and balance section of the AFM/POH. These include limitations for takeoff power, maximum continuous power, and maximum normal operating power, which is the maximum power the engine can produce without any restrictions and is depicted by a green arc. Other items 3300 that can be included in this area are the minimum and 2255 3355 maximum oil and fuel pressures, oil and fuel grades, and MANIFOLD propeller operating limits. [Figure 9-3] 2200 PRESSURE 4400 All reciprocating-engine powered aircraft must have a IN Hg revolutions per minute (rpm) indicator for each engine. 1155 ALg. 4455 Aircraft equipped with a constant-speed propeller or rotor 1100 5500 system use a manifold pressure gauge to monitor power output and a tachometer to monitor propeller or rotor speed. Both instruments depict the maximum operating limit with IAS 2200 II55 260 40 2255 AIRSPEED II00 RPM KNOTS 60 HUNDREDS 200 250 I 55 I0 3300 180 200 80 160 160041 TAS 100 33 HOU RS 3355 AVOID 140 C O O P N E T R IN AT U I O O U N S 120 A BE N T D W 2 E 3 E 5 N 0 2 R 2 P 5 M 0 Figure 9-4. Manifold pressure gauge (top) and tachometer (bottom). Figure 9-2. Multi-engine airspeed indicator. 9-3