Engine Limitations Flashcards
Min batt voltage for engine start
24V
Max transient TRQ
115% (10 secs)
Max takeoff TRQ
111% (5 mins at takeoff)
Max continuous TRQ
92%
Max engine start TOT
927°C (10 secs over 810°)
Max transient TOT
899°C (6 secs over 810°C)
Max take off TOT
810°C (5 min at T/O)
Max continuous TOT
752°C
Max continuous N2
2130
Max static ground ops with crosswind >10 kts (N2)
1850
Max transient N1
106% (max 15 seconds >105%)
Max continuous N1
105%
Max transient oil pressure (cold weather / engine start)
150psi
Max oil pressure
130 psi
Min oil pressure at N1 >94%
120 psi (decreases linearly by 2 psi for every 1000ft above 5000ft pressure altitude to a max reduction of 20 psi)
Min oil pressure at N1 85-94%
90 psi
Min oil pressure at N1 <85%
50 psi
Beta range, min psi for:
N1 >94%
N1 85-94%
N1 <85%
Normal min oil pressure minus 15 psi, i.e:
N1 >94% = 105 psi
N1 85-94% = 75 psi
N1 <85% = 35 psi
