9.  Once the maneuver is complete, establish cruise flight  and accomplish all appropriate checklist items. Unusual attitudes are some of the most hazardous situations  for a pilot to be in. Without proper recovery training  on instrument interpretation and aircraft control, a pilot  can quickly aggravate an abnormal flight attitude into a  potentially fatal accident. Analog gauges require the pilot to scan between instruments  to deduce the aircraft attitude. Individually, these gauges lack  the necessary information needed for a successful recovery. EFDs have additional features to aid in recognition and  recovery from unusual flight attitudes. The PFD displays  all the flight instruments on one screen. Each instrument is  superimposed over a full-screen representation of the attitude  indicator. With this configuration, the pilot no longer needs  to transition from one instrument to another. The new unusual attitude recovery protection allows the  pilot to be able to quickly determine the aircraft’s attitude  and make a safe, proper, and prompt recovery. Situational  awareness is increased by the introduction of the large  full-width artificial horizon depicted on the PFD. This now  allows for the attitude indicator to be in view during all  portions of the scan. One problem with analog gauges is that the attitude indicator  displays a complete blue or brown segment when the pitch  attitude is increased toward 90° nose-up or nose-down.  With the EFDs, the attitude indicator is designed to retain  a portion of both sky and land representation at all times.  This improvement allows the pilot to always know the  quickest way to return to the horizon. Situational awareness  is greatly increased. NOTE: The horizon line starts moving downward at  approximately 47° pitch up. From this point on, the brown  segment remains visible to show the pilot the quickest way  to return to the level pitch attitude.  [Figure 7-69] NOTE: The horizon line starts moving upward at  approximately 27° pitch down. From this point on, the blue  segment remains visible to show the pilot the quickest way  to return to the level pitch attitude.  [Figure 7-70] It is imperative to understand that the white line on the  attitude indicator is the horizon line. The break between the  blue and brown symbols is only a reference and should not  be thought of as the artificial horizon. Another important advancement is the development of the  unusual attitude recovery protection that is built into the PFD  software and made capable by the AHRS. In the case of a nose- high unusual attitude, the unusual attitude recovery protection  displays red chevrons that point back to the horizon line. These  Unusual Attitude Recovery Protection GPS ENR  60  60  50  50  40  40  30  30  20  20  2  1  1  2  2 5 00 6200  6100  6000  3900  5800  5700  5600  3600  3500  3440000  3300  3200  3100  20 80 5900 4000  130 120 130 100 90 80 9 108 7 ALERTS  NAV1 108.00 113.00 NAV2 108.00 110.60 134.000 118.000 COM1 123.800 118.000 COM2 $_{WPT }$_ _ _ _ _ _$_{ DIS }$_ _ ._ $_{NM}$ $_{DTK }$_ _ _$_{°}$ TRK 360° Figure 7-69.  Unusual attitude recovery protection. Note the brown horizon line is visible at the bottom. 7-55