T-45 Limits Feb 2019

≤ 200 KIAS

≤ 200 KIAS

≤ 450 KIAS

• Stationary and towing full open - winds ≤ 32 knots
• Locking in intermediate position - Only ingress and egress
• Taxi full open - wind ≤ 20 knots

≤ 176 GS

≤ 176 GS

• Fuel level ≤ 2,800 lbs
• PRECHECK successful

• Max N2 RPM - 104%
• Max EGT - 610°C
• Time limit - 30 min/flight hour

• Max N2 RPM - 106%
• Max EGT - 645
• Time limit - Less than 20 seconds

Transient/acceleration limits apply to any acceleration whether from IDLE to MRT or any increment in between. EGT may rise to 645°C during or immediately following the acceleration, but must decrease to 610°C or less withing 20 second after the engine reaches it's max RPM.

• Max N2 RPM - 100%
• Max EGT - 550°C
• Time Limit - N/A

• Max N2 RPM - 56.5% ± 2%
• Max EGT - 450°C
• Time Limit - N/A

• Max N2 RPM - N/A
• Max EGT - 550
• Time Limit - N/A

Maximum overshoot of 20°C for 10 seconds.

• Max N2 RPM - N/A
• Max EGT - 600
• Time Limit - N/A

Maximum Overshoot of 50°C for 10 seconds (EGT/RPM warning light will operate at 650 ± 8°C)

• Ground start is prohibited with manual fuel control.
• With manual fuel control selected, maximum N2 RPM limitations are the following:
•  - N2 ≤ 90% above 20,000' MSL
•  - N2 ≤ 95% at or below 20,000' MSL

• 1. Engine start is prohibited with the throttle above the ground idle detent.
• 2. Minimum N2 RPM required for engine start is 15%
• 3. Engine light-off during a normal start must occur within 15 seconds after moving throttle to IDLE.
• 4. For starting, minimum votalge for each battery is 24V.
• 5. No more than three successive engine start attempts may be performed. Following the third start attempt, a 30-minute cool down period must be observed before attempting another engine start.

• 1. GTS start with external power is prohibited
• 2. Minimum interval between GTS start attempt is 3 minutes. After three consecutive attempts, a minimum interval of 30 minutes is required before any further start attempts.
• 3. Additional GTS start attempts after an unsuccessful GTS start attempt are prohibited until the GTS exhaust duct and combustion section are inspected and any residual fuel is removed, and the RAT doors are inspected for discoloration and warpage.

• Note
• GTS starts not reliable at altitudes above 15,000' MSL
• The GTS 3-minute delay between consecutive starts does not apply in emergency situations.

• 1. Maximum 90° crosswind component (NWS AUG operational/failed)
•  -a. Single Aircraft (dry/wet runway): 20/15 kts
•  -b. Section Takeoff: 10 kts
•  -c. NWS OFF/Failed: 15 kts
• 2. High gain NWS shall be used for low speed taxi only (less than 10 kts groundspeed).
• 3. Non-FCLP landings - sink rate shall not exceed 600 fpm.

• 1. Intentional spins or tailslides.
• 2. Rolling cross-control maneuvers of more than 60° bank angle change
• 3. Inentional departures except for:
•  -a. Erect rolling departure entered with full aft stick / full lateral stick
•  -b. Erect rudder-induced departure entered with full aft stick / full rudder.
•  -c. Nose high departures (70° and 110°).
• 4. Sustained zero or negative G flight for more than 30 seconds.
• 5. Less than 30 seconds between negative G or zero G maneuvers
• 6. Rolls at less than:
•  -a. Negative 1.0g at less than 260 KIAS
•  -b. Negative 0.2g at or greater than 260 KIAS, but less than 0.80 Mach
•  -c. Approximately positive 1.0g at or greater than 0.80 Mach
• 7. Lateral/directional inputs below 3 units AOA
• 8. Inentional departures with greater than 1,000 ft-lb asymmetry.
• 9. Operations with EMER FLAPS selected, when normal HYD1 power is available, is restricted to 30 seconds with engine RPM ≤ 90%. Except in an actual emergency, use of EMER FLAPS is restricted to FCF profiles.
• 10. Intentional accelerated stalls with landing gear extended while carrying stores.