Figure 5-7 Basic (Left) And Advanced (Right) Airspeed Configuration Type Settings; Figure 5-8 User-Configurable Airspeed Markings - Garmin GI 275 Installation Manual

5.5.1.1 Airspeed Configuration
Airspeeds used to configure the IAS tape must be taken from the AFM/POH, aircraft TCDS, or other
approved STC applicable to the specific aircraft being modified.
Information and settings available on the Airspeeds pages (shown in Figure 5-7) for a GI 275 will vary
depending on whether the Mode field on the Airspeed Configuration page is set to Basic or Advanced
(Setup → Airframe Configuration → Airspeed Configuration).

Figure 5-7 Basic (Left) and Advanced (Right) Airspeed Configuration Type Settings

The Basic setting values are generally found in the AFM/POH for each aircraft. Refer to Table 5-45 for
detailed information on obtaining Basic setting airspeed values. Refer to Appendix E for information on
obtaining advanced setting airspeed values.
With GI 275 software v2.11 and later, ten additional user-configurable airspeed markings are available
(default C0 through C9). All user-configurable markings must be at least 5 mph/kts apart from any other
airspeed marking.
CAUTION
The Mode field on the Airspeed Configuration page must be set to "Advanced" for
aircraft that have an altitude-variable maximum airspeed limitation.
NOTE
If the AFM or POH lists both indicated airspeed (IAS) and calibrated airspeed (CAS), use
IAS values.
190-02246-10
Rev. 11

Figure 5-8 User-Configurable Airspeed Markings

GI 275 Part 23 AML STC Installation Manual
Page 5-36