Garmin G1000H Bell 407GX Pilot's Guide - Page 77

FLIGHT INSTRUMENTS CDI Full-scale Deflection 0.3 nm 1.0 nm 2.0 nm 1.0 nm 1.0 nm 0.3 nm Departure Terminal Enroute (Oceanic if >200 nm from nearest airport) Terminal Refer to accompanying approach CDI scaling figures Approach Missed Approach Figure 2-29 Automatic CDI Scaling • Once a departure procedure is activated, the CDI is scaled for departure (0.3 nm). • The system switches from departure to terminal CDI scaling (1.0 nm) under the following conditions: - The next leg in the procedure is not aligned with the departure runway - The next leg in the departure procedure is not CA, CD, CF, CI, CR, DF, FA, FC, FD, FM, IF, or TF (see Glossary for leg type definitions) - After any leg in the departure procedure that is not CA or FA • At 30 nm from the departure airport the enroute phase of flight is automatically entered and CDI scaling changes to 2.0 nm over a distance of 1.0 nm, except under the following conditions: - When navigating with an active departure procedure, the flight phase and CDI scale does not change until the aircraft arrives at the last departure waypoint (if more than 30 nm from the departure airport) or the leg after the last departure waypoint has been activated or a direct-to waypoint is activated. • If after completing the departure procedure the nearest airport is more than 200 nm away from the aircraft and the approach procedure has not yet commenced, the CDI is scaled for oceanic flight (2.0 nm). • Within 31 nm of the destination airport (terminal area), the CDI scale gradually ramps down from 2.0 nm to 1.0 nm over a distance of 1.0 nm, except under the following conditions: - When navigating with an active arrival route, the flight phase and CDI scale does not change until the aircraft arrives at the first waypoint in the arrive route (if within 31 nm from the destination airport). • During approach, the CDI scale ramps down even further (see Figures 2-30 and 2-31). This transition normally occurs within 2.0 nm of the final approach fix (FAF). The CDI switches to approach scaling automatically once the approach procedure is activated or if Vector-to-Final (VTF) is selected. - If the active waypoint is the FAF, the ground track and the bearing to the FAF must be within 45° of the final approach segment course. - If the active waypoint is part of the missed approach procedure, the active leg and preceding missed approach legs must be aligned with the final approach segment course and the aircraft must not have passed the turn initiation point. 190-01255-00 Rev. A Garmin G1000H™ Pilot's Guide for the Bell 407GX 65