T-6A INSTRUMENT NAVIGATION
412. POINT-TO-POINT NAVIGATION
Point-to-point navigation is a procedure used to fly from one radial/DME fix to another using a
direct track. When an aircraft approaches a terminal area, ATC normally clears it to a holding
fix or an IAF. The routing specified may be to the station and out the radial, along an arc to a
radial, or direct to the fix. If cleared direct to the fix, the pilot may be radar vectored or employ
When cleared direct from one point to another, you must determine the heading to fly.
The key to point-to-point navigation is learning to visualize the aircraft's present position
and the desired fix on the compass card of the EHSI. The following concepts will aid in
developing this ability.
The station is always at the center of the compass card. The compass card is merely a
compass rose around the station.
The fix having the greater distance is always established on its radial at the outer edge
of the compass card.
The remaining fix is established along its radial at a point whose distance from the
center of the card is proportional to the distance represented by the outer edge of the
The following example and the illustrations in Figures 4-8, 4-9, and 4-10 demonstrate the
procedures for flying from one fix to another fix. The aircraft is on the 180° radial at 20 NM and
you want to navigate to the 090° radial at 10 NM.
4-24 INSTRUMENT NAVIGATION