Snowplow

SnowPlow

TMS Up

SnowPlow

Slew

Snowplow Mode. This mode is available in NAV and A-G modes while the TGP is not tracking. This mode is available when SP is displayed adjacent to the OSB. When SP is pressed, both the FCR and TGP are commanded to snowplow mode.

In snowplow mode, the TGP LOS is commanded straight ahead and angled downwards to point to the ground ahead at ½ of the currently selected FCR scale (for example, if selected FCR scale is 40nm, the TGP will look at the point on the ground 20nm ahead). Because the location determined by the reticle is snowplowing, the SPI itself will also snowplow.

Slewing is disabled; however, it is possible to ground-stabilize by pressing TMS-fwd. This will exit SP mode and enter a normal AREA track.