PERFORMANCE
AIRPLANE
FLIGHT
MANUAL
5-01
CTA APPROVED
Page 14 code 01
ORIGINAL
AFM-1912
NORMAL TAKEOFF THRUST - NTO
It is the maximum thrust available for the all-engine-operating takeoff,
or for the one-engine-inoperative takeoff when ATTCS is not used. It is
usually time limited.
AUTOMATIC TAKEOFF THRUST CONTROL SYSTEM - ATTCS
It is the system that increases the Normal Takeoff Thrust on the live
engine to Reserved Takeoff Thrust, when the other engine fails. It is
designed for saving engine life, since most of takeoffs do not suffer
engine failure, thus allowing use of Normal Takeoff Thrust in every
all-engine-operating takeoff. ATTCS is also used to increase the
Normal Go-Around Thrust on the live engine to Maximum Go-Around
Thrust, when the other engine fails.
DERATED TAKEOFF THRUST
It is a takeoff thrust level less than the maximum takeoff thrust, which
is considered by the CAFM as an independent and clearly
distinguished takeoff thrust rating that complies with all takeoff
performance requirements. When operating with derated takeoff
thrust, the takeoff thrust setting parameter that is presented by the
CAFM is considered a normal takeoff operating limit. It is usually time
limited.
REDUCED TAKEOFF THRUST
It is a takeoff thrust level less than the maximum takeoff thrust, or less
than the derated takeoff thrust. When operating with reduced takeoff
thrust, the takeoff thrust setting parameter that is presented by the
CAFM is not considered a takeoff operating limit. It is usually time
limited.
GO-AROUND THRUST
It is the maximum thrust available for go-around, usually time limited.
NORMAL GO-AROUND THRUST
It is the maximum thrust available for the all-engine-operating
go-around, or for the one-engine-inoperative go-around when ATTCS
is not used. It is usually time limited.
MAXIMUM CONTINUOUS THRUST
It is the maximum thrust that may be used continuously, not time
limited.
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