ENGINES CF34-3B

Question 1

1. -Start—> Core N2% RPM…..FAN N1% RPM…..ITT degree C…..
2. -Acceleration—> Core N2% RPM…..FAN N1% RPM…..ITT degree C…..
3. -Max Cont—> Core N2% RPM…..FAN N1% RPM…..ITT degree C…..
4. -Normal T/O—> Core N2% RPM…..FAN N1% RPM…..ITT degree C…..
5. -Max T/O ( APR operating )—>Core N2% RPM…..FAN N1% RPM…..ITT degree C…..

Answer 1

1.—>Core N2 20%…..FAN N1 —%…..ITT 903 degree C ( 50 seconds )
2.—>Core N2 —%…..FAN N1 —%…..ITT 930 degree C ( 5 seconds )
3.—>Core N2 99.2%…..FAN N1 98.6%…..ITT 899 degree C
4.—>Core N2 98.3%…..FAN N1 96.2%…..ITT 884 degree C ( 5 mins)
but 900 degree C ( 2 of 5 mins)
5.—>Core N2 99.4%…..FAN N1 98.6%…..ITT 899 degree C ( 5 mins)
but 928 degree C ( 2 of 5 mins)
*Transient Limit