| Mode Control Panel |
Level Change (LVL CHG) Switch
Push –
LVL CHG Mode
The LVL CHG mode coordinates pitch and thrust commands to make
automatic climbs and descents to preselected altitudes at selected
airspeeds.
The LVL CHG mode is inhibited after glideslope capture.
Push –
- The LVL CHG switch light illuminates.
- Pitch mode annunciates MCP SPD for climb or descent
- Autothrottle mode annunciates N1 for climb and RETARD followed by
ARM for descent. - IAS/MACH display and airspeed cursors display target speed.
LVL CHG Mode
The LVL CHG mode coordinates pitch and thrust commands to make
automatic climbs and descents to preselected altitudes at selected
airspeeds.
The LVL CHG mode is inhibited after glideslope capture.
A LVL CHG climb or descent is initiated by:
- •Selecting a new altitude.
- Pushing the LVL CHG switch.
- Setting desired airspeed.
- Autothrottle holds limit thrust.
- AFDS holds selected airspeed.
- Autothrottle holds idle thrust.
- AFDS holds selected airspeed.
- If a speed mode is active when LVL CHG is engaged, this speed is
retained as the target speed. - If a speed mode is not active when LVL CHG is engaged, existing
speed becomes the target speed. - Speed can be changed with the MCP IAS/MACH Selector.
Collins MCP
Glareshield - MCP 700/800/900
