Chapter 4 Limitations Flashcards
Flaps down max speed
157 KIAS
Prop rpm (N2) transient between __ and __ is allowable for __ seconds.
2000 and 2200 rpm for 5 seconds
Vmca, single engine minimum control speed
86 KIAS
Max time for brake deice operation with gear retracted
10 minutes
Oil pressure minimum limit
60 psi
Oil pressure normal range
100 to 135 psi below FL210
85 to 135 psi above FL210
Oil pressure maximum on start
200 psi
Maximum sustained generator load in flight
100 % below FL 310
88 % above FL 310
Torque maximum limit
100 %
Torque normal range
20 to 100%
Starter cycle limitations
40 seconds on 60 seconds off (2 cycles)
40 seconds on 30 minutes off
Maximum landing gear cycles
10 per hour, 1 per minute
Total and usable fuel capacity
549 gal total, 544 usable
Max error in fuel gauges
3%
ITT normal range
400 to 800 C
ITT max continuous
800 C
ITT starting limit
1000 C
ITT for cruise/climb
770 C
Operation on avgas is limited to ___ during any one engine overhaul period.
150 hours
Generator ground limits
56% N1 minimum for 70-75% load
60% N1 minimum for 75-80% load
65% N1 minimum for 80-85% load
Transient N1 between ___ and ___ are limited to ___.
101.6 to 102.6 limited to 10 seconds.
If transient N1 is exceeded what must be done
Engine must be replaced
Transient torque values above 100% are limited to ___
5 seconds
Oil temperature minimum for start
-40 C
Oil temperature limits for normal low and high idle
-40 to 99 C
Prop specs
3 Blade Counterweighted Constant speed 98 inch diameter Full feathering Hydraulically actuated Reversible
Transient oil temperatures between ___ and ___ are allowable for ___.
100 and 104 C for 5 minutes
Pressurization limit for inner pane cracked
4.0 psi
G load limits
Clean: 3.17 to -1.27
Flaps: 2.0 to -1.27
Limit for flight with outer pane cracked
6.6 psi
Limit for flight with both panes cracked
unpressurized only
Landing gear maximum retraction speed
163 KIAS
Maximum tire speed
139 Knots
How does Vmo change with altitude
Decreases 5 knots for every 1000 feet above 15,000
Below ___ torque is limited to ___.
1600 rpm limited to 49 %
Prop deice ammeter limits
18 to 24 A
CG envelope
Below 11,279 lbs: 181.0 to 196.4
11,279 to 12,500 lbs: 185.0 to 196.4
12,501 to 13,500 lbs: 188.3 to 196.4
Maximum maneuvering speed with flaps down
111 KIAS
A minimum of ___ should be maintained during simultaneous use of surface and brake deice systems.
85% N1
Maximum altitudes for operations with avgas
Both boost pumps: FL310
Single boost pump: FL200
Prop tachometer (N2) normal range
1600 to 2000 rpm
Prop tachometer (N2) maximum
2000 rpm
Low idle ITT limit
750 C
Maximum reverse ITT limit and time
750 C for 1 minute
Minimum safe single engine speed
104 KIAS
Turbulent air penetration speed
170 KIAS
Turbine tachometer (N1) normal range
56 to 101.5%
Turbine tachometer (N1) maximum
101.5%
Oil temperature normal flight range
0 to 99 C
Oil temperature maximum in flight
99 C
Flaps approach maximum speed
200 KIAS
Maximum maneuvering speed with flaps up
181 KIAS
Generator ouput range and difference
27.5 to 29.0 V, should be within 1 V of each other
Generator load max deviation
10 percent
Minimum altitude for yaw dampener engagement
200 AGL
Maximum tailwind of takeoff and landing
10 kts
Max crosswind for takeoff/landing (dry)
25 kts
Max crosswind for takeoff/landing (icy)
10 kts
Max crosswind for takeoff/landing (soft)
5 kts
Maximum sink rate at touchdown
300 fpm
Accelerations of less than ___ may result in the loss of oil pressure and should be avoided.
+0.5 G
Brake deice should not be operated at ambient temperatures above ___.
15 C
Maximum engine performance is ___ limited at cold ambient temperatures and low altitude.
Torque
Maximum engine performance is ___ limited at high ambient temperatures and high altitude.
Temperature
Maximum allowable oil fluctuation
+/- 10 psi
Minimum temperature for deice boots
-40 C
Ice vanes shall be extended for operations in ambient temperatures of ___ or below if flight free of visible moisture cannot be assured.
5 C
Ice vanes shall be retracted for operations in ambient temperatures of ___ or above.
15 C
Who may authorize takeoff in the restricted envelope.
CO may be delegated.
Airstair maximum door weight
300 lbs
Maximum altitude
FL350
Maximum landing gear extension/extended speed
181 KIAS
Maximum operating altitude with unpressurized cabin
FL250
Engine type and rating
PT6A-42, 850 SHP
Maximum normal ramp weight
12,595 lbs
Maximum restricted ramp weight
13,595 lbs
Maximum normal takeoff weight
12,500 lbs
Maximum restricted takeoff weight
13,500 lbs
Maximum zero fuel weight
11,000 lbs
Maximum differential pressure
0 to 6.6 psi
Operation with fuel pressure light illuminated is limited to ___ between engine driven fuel pump overhaul or replacement periods.
10 hours
When may auxiliary tanks be filled
Only when main tanks are full
Maximum fuel imbalance
1,000 lbs
Use of brake deice during takeoff may render ___ ineffective with an engine failure after takeoff.
Rudder boost
Autopilot flap limitations
Autopilot shall not be used with flaps past the approach setting.
Maximum landing weight
12,500 lbs
Propeller operation between ___ and ____ during ILS approach may result in glideslope signal interference.
1750 and 1850 rpm.
Oil pressure ___ to ___ (at or above FL210) is undesirable and should be tolerated for the completion of flight at a power setting not to exceed ___.
60 to 85, 49% torque.
Oil pressure ___ to ___ (below FL210) is undesirable and should be tolerated for the completion of flight at a power setting not to exceed ___.
60 to 100, 49% torque.
Maximum altitude with yaw dampener inoperative
17,000 MSL
Minimum fuel quantity for takeoff
265 lbs per side
Minimum fuel quantity for landing
530 lbs
Torque is limited to ___ for sustained operation above ___.
81% above 2080 rpm.
Can brake deice be used during single engine operation or if pneumatic pressure is being supplied by a single bleed air source?
No
Pneumatic pressure normal range
12 to 20 PSI
Pneumatic pressure maximum
20 psi
Maximum operating speed
259 KIAS or 0.52 whichever is lower
Gyro suction limit
2.8 to 5.9 in Hg
Best rate single engine
121 KIAS
Best angle single engine
115 KIAS
Best angle 2 engine
100 KIAS
Minimum altitude for autopilot on takeoff
400 AGL
Minimum altitude for autopilot on cruise
1000 AGL
Minimum altitude for autopilot on landing
200 AGL
Minimum controllable ground speed
86 KIAS
Maximum range glide speed
140 KIAS
Minimum voltage for battery start
20 V
Low idle N1 minimum
56%
High idle N1
approximately 70%
Maximum reverse N1
88 %
Cruise climb airspeed below 10K
160 KIAS
Cruise climb airspeed between 10K and 20K
140 KIAS
Cruise climb airspeed between 20K and 25K
130 KIAS
Cruise climb airspeed between 25K and 35K
120 KIAS
