BANK ANGLE LIMITS
The bank angle limits, roll limit 1, and roll limit 2 are defined by the roll limit graph shown in Figure 5-3 and are based on true airspeed. During
an engine out condition, both limits are set at 15°. -
this does not contradict FCOM 4 I referenced, does it?
Control Roll Limit
During selected headingmode, the flight guidance part of the computer
imposes the roll limits. During managed heading mode, the flight management part of the computer imposes the roll limits based on true airspeed and the active segment of the active leg, depending on the need for simple turn control (the path over the ground is not fixed) or fixed path control (a defined
path over the ground).
-For simple turn control (while turning to a heading target) roll limit 2
is imposed.
- For fixed path control (in legs to capture a path) the FMS uses either
roll limit 1 or roll limit 2 as required below:
— Roll limit 1 - When the turn does not result in a captured and engaged leg.
— Roll limit 2 - When flying an arc to capture and engage a leg
- When flying an arc to a fix unless:
- The active leg is a holding pattern or procedure turn when roll limit 2 is imposed.
- The aircraft is within lateral overshoot navigation limits, (then the en route roll limit is 15°), except in the terminal area where roll limit 2 is imposed.
NOTE: Below 700 ft radio altitude, when in LAND track and LOC track, bank angle is further limited to 10° by the flight guidance function.
ROLL LIMIT SUMMARY
Roll limit 1 is used for most straight line segments of a flight leg, and by
the FMS when the heading is managed. Roll limit 2 is used by the FMS on most managed transitions in the terminal area, and for specific procedures such as holding patterns, procedure turns, and arcs.
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(the un-real)