1T-6A-1 T-6A Flight Manual: Section 5: Limitations Flashcards
Engine Oil Quantity Limits (5-3, condensed checklist N-27)
- 18.5 Quarts
- Service within 30 minutes after engine shutdown, most accurate results after 15-20 minutes.
- Use dip stick, don’t use sight glass.
- Normal level between ADD and MAX HOT
- If below ADD, fill to MAX HOT
Batter/Starter Limits (5-23)
What is minimum volts to add external power?
22.0 V
Batter/Starter Limits (5-23)
What is minimum volts to attempt battery start?
23.5 V
Batter/Starter Limits (5-23)
What is on station battery volt starter limits?
28.0-28.5 V
Batter/Starter Limits (5-23)
What is off station battery volt start limits?
24.0-29.5 V
Batter/Starter Limits (5-23)
External power cart limits.
1000 amp for 5 seconds.
500 amp for 2 minutes.
300 amp continuous.
Batter/Starter Limits (5-23)
What is the minimum voltage to charge the battery?
The generator needs to supply at least 25 volts to charge the batter.
Operating Limits (Figure 5-2)
What is TORQUE
IDLE?
TAKEOFF/MAX?
TRANSIENT?
IDLE 1-10%
TAKEOFF/MAX 100%
TRANSIENT 101-107% 5 seconds
Operating Limits (Figure 5-2)
What is ITT C
START?
IDLE?
TAKEOFF/MAX?
TRANSIENT?
START 871-1000 (5 sec)
IDLE 750 MAX
TAKEOFF/MAX 820 MAX
TRANSIENT 821-870 (20 sec)
Operating Limits (Figure 5-2)
What is N1%
IDLE (GROUND)?
IDLE (FLIGHT)?
TAKEOFF/MAX?
TRANSIENT?
IDLE (GROUND) 60-61%
IDLE (FLIGHT) 67%
TAKEOFF/MAX 104% MAX
TRANSIENT 104% MAX
Operating Limits (Figure 5-2)
Propeller Limits (5-8)
What is Np
IDLE (GROUND)?
TAKEOFF/MAX?
TRANSIENT?
IDLE (GROUND) 46-50%
TAKEOFF/MAX 100%
TRANSIENT 110 (20 seconds)
Operating Limits (Figure 5-2)
What is OIL PX PSI
START MAX?
IDLE MIN?
TAKEOFF/MAX?
TRANSIENT?
(SPINS/AEROBATICS) IDLE?
START 200 MAX
IDLE 90 MIN
TAKEOFF/MAX 90-120
TRANSIENT 40-130
(SPINS/AEROBATICS) IDLE 15-40 (5 second)
Operating Limits (Figure 5-2)
What is OIL TEMP C
START
IDLE
FLIGHT
TAKEOFF/MAX
TRANSIENT
START -40
IDLE -40-105
FLIGHT 10-105
TAKEOFF/MAX 10-105
TRANSIENT 106-110 (10 min)
Vmo, Mmo, Vg, Vo (5-8, 9)
What is Vmo?
maximum operation speed (316knots @ 18,769’, 244knots @ 31,000’)
Vmo, Mmo, Vg, Vo (5-8, 9)
What is Mmo?
maximum mach number (0.67m)
Vmo, Mmo, Vg, Vo (5-8, 9)
What is Vg?
Turbulent air penetration speed 195 KIAS, 180 recommended
Vmo, Mmo, Vg, Vo (5-8, 9)
What is Vo?
Operating maneuvering speed (Vo) is the speed above which full or abrupt control movements in one axis can result in structural damage to aircraft. 227 KIAS (Except rudder, above 150 KIAS exceeds limits)
0 G limit, Neg G limit (5-9, 10)
Max 0 G?
5 seconds maximum.
Over 5 seconds can cause engine damage and possible failure, regardless of oil px.
0 G may indicate +0.25G to -0.25G
0 G limit, Neg G limit (5-9, 10)
Negative G limit?
- Negative G operation left to 60 seconds
- Negative G maneuvers within 60 seconds followed by 60 seconds upright positive G before additional negative G maneuvers
- Do not exceed -2.5G for more than 30 seconds
Prohibited Maneuvers? (5-10)
- Inverted stalls
- Inverted spins
- Aggravated spins past 2 turns
- Spins with the PCL above idle
- Spins with the landing gear, flaps, or speed brake extended
- Spins with the PMU off
- Spins below 10,000 feet pressure altitude
- Spins above 22,000 feet pressure altitude
- Abrupt cross-controlled (snap) maneuvers
- Aerobatic maneuvers, spins, or stalls with a fuel imbalance greater than 50 pounds between wings
- Tail slides
Acceleration Limits? 5-10
-3.5 to 7.0 symmetric clean
0.0 to 2.5 symmetric configured
-1.0 to 4.7 asymmetric clean
0.0 to 2.0 asymmetric configured
Uncoordinated rolling maneuvers initiated at -1G shall be limited to 180-degree bank angle change
Weight Limits (5-11)
Max ramp weight?
6550
Weight Limits (5-11)
Max takeoff weight?
6500
Weight Limits (5-11)
Max landing weight?
6500
