MD-80 Limitations Flashcards
Maximum Allowable Load Factors
Flaps Up +2.5g to -1.0g
Flaps Down +2.0g to 0.0g
Max T/O Runway Slope
+1.7%
-2.0%
Max Landing Runway Slope
+ 2.0%
- 2.0%
Max T/O and Landing Wind Components
Headwind (Company) 50 kts
Tailwind 10 kts
Max Demonstrated Crosswind Component
Dry Runway 30 knots Wet Runway (Company) 30 knots Rudder Manual (Company) 12 knots Rudder Restricted Landing (Company) 12 knots Braking Reported Poor (Company) 10 knots ***Do not include gusts***
Takeoff and Landing Altitude Restrictions
-1,000’ PA to 8,500’ PA
Max Runway Contamination Depths
T/O
Dry Snow - 4”
Slush/Standing Water - 1/2”
Wet Snow - 1”
Landing
Dry Snow - 6”
Wet Snow/Slush/Standing Water - 1”
Vmo/Mmo
340 Knots, .84 Mach
Max Rough Airspeed (TAPS)
285 Knots or Mach .79
Whichever is lower
Max T/O and Landing Temperature
Below 2525’ PA +50C
At and above 2525’ PA ISA + 40C
Minimum T/O and Landing Temperature
-54C
Maximum Taxi Weight
161,000
Maximum T/O Weight
160,000
Maximum Landing Weight
139,500
Maximum Zero Fuel Weight
122,000
Maximum Cabin Differential Pressure
8.07 PSI
Maximum Emergency Relief Pressure (Red Radial)
8.32 PSI
Minimum Autopilot Altitudes
Takeoff - 500’ AGL
IMC Approach - 50’ below DH or MDA
VMC Approach - 50’ above TDZ
DO NOT use autopilot inside the outer marker or FAF single engine
AC Voltage
115 +/- 8 VAC
Frequency
400 +/- 20 CPS
Engine Generator Load
Peak - Over 1.5 for 5 seconds
Maximum - 1.5 for 5 minutes
Maximum Continuous - 1.0
APU Generator Load
Max Continuous Ground - 1.25
Max Continuous Flight Below 25,000’ - 1.0
Max Continuous Flight 25,000’ and above - .7
Voltage L and R DC Buses
26 +/- 4 Volts
DC TR Load
Max Continuous 1.0
Max Difference Between Two Load Meters Powering the Same Buses 0.3
Battery Voltage
Min (No Load) 25 VDC
Min (Emergency Power Switch On) 25 VDC
With charger powered and battery switch on 31 +/- 6 VDC
Battery Amperage
Max Charging - Steady mode (to the left) - 65 Amps
Charging - Pulse Mode - 0-40 Amps
Max Discharging (to the right) with Emerg Power Switch ON - 50 Amps
External Power Source Voltage and Frequency
115 +/- 8 VAC
400 +/- 20 CPS
DO NOT Reset CBs
Battery Charger Auxiliary Hydraulic Pump Fuel Pump Fuel Quantity Lavatory Flush Motor (Company)
Flap/Slat Maximum Limit Speeds
Slats Extended/Flaps 0 - 280 Knots or .57Mach
Slats Mid/Flaps 11 - 280 Knots or .57 Mach
Slats Full/Flaps 15 - 240 Knots or .57 Mach
Slats Full/Flaps 28 - 200 Knots or .57 Mach
Slats Full/Flaps 40 - 195 Knots or .57 Mach
Speedbrake/Ground Spoilers Limitations
Speedbrakes may only be used in the Flaps 0 configuration.
DO NOT move speedbrakes to ground spoiler position in flight.
DO NOT extend landing gear while the speedbrakes are deployed.
DO NOT operate the airplane below 220 KIAS with the speedbrakes extended.
DO NOT arm ground spoilers prior to landing gear extension.
Minimum Fuel for Dispatch
4,000 lbs in each main tank
Minimum Fuel for Go-Around
500 lbs in each main tank