
Airplane Flight Manual Supplement
for II Morrow Apollo SL50/SL60 II Morrow Inc.
March 17, 1997 2345 Turner Rd. SE
Part #: 560-1006-00 Salem, OR 97302
FAA Approved
Page 6 of 16 Date: MAR 31 1997
2. System Software (IFR)
The System must utilize the software version listed below (or later FAA approved versions).
Versions can be displayed in the System mode on the SL50 GPS/SL60 GPS-COMM front
panel.
• Apollo SL50 GPS/SL60 GPS Nav Software Ver 1.0
• GPS Sensor Software Ver 2.1
• Apollo SL60 only Comm Software Ver 1.2
3. Data Base (IFR)
IFR enroute and terminal navigation is prohibited unless the pilot verifies the currency of the
data base or verifies each selected waypoint for accuracy by reference to current approved
data.
4. Alternate Navigation System
The aircraft must have other approved navigation equipment installed and operational
appropriate to the route of flight.
5. Alternate Communications System
When an Apollo SL60 is installed, for IFR communications, the aircraft must have another
independent communication systems having a minimum Mean Time Between Failures
(MTBF) of 1000 hours.
6. Magnetic Variation
a) The magnetic variation (MagVar) correction is not available in the Apollo SL50
GPS/SL60 GPS-COMM above 73 degrees North or below 73 degrees South latitude.
All bearing and track information is computed and displayed relative to true north in
these polar regions.
b) If the “Using Manual MAG VAR” message is generated by the Apollo SL50
GPS/SL60 GPS-COMM, the Pilot/Crew must verify or set the manual magnetic
variation to the appropriate value.
7. Annunciated Messages (IFR)
All annunciated messages, indicated by the MSG annunciator, must be viewed and
acknowledged by the pilot/crew.
8. Display/Annunciators/Indicators (IFR)
Prior to IFR flight, the SL50 GPS/SL60 GPS-COMM display and all annunciators and
CDI/HSI indicators must be checked for proper operation. (Note: The SL50 GPS/SL60 GPS-
COMM automatically sequences through a series of start-up tests that include operational
checks of the display, annunciators, flags, and CDI/HSI indicators.)
9. Non-Navigation Information
All non-navigation information displayed by the SL50 GPS/SL60 GPS-COMM, such as
timer/clock and waypoint information (frequencies, runways, etc.) is advisory information
only.
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