In map-only navigation, what does the 90-degree offset method accomplish?

In map-only navigation, what does the 90-degree offset method accomplish?

• A. Return to the starting point
• B. Move in a straight line toward the target
• C. Bypass obstacles by detouring at right angles for specified distances
• D. Use the stars to determine heading

Answer: (C)

In map-only navigation, the 90-degree offset method is about bypassing obstacles with a controlled side detour. When the direct line to your objective is blocked by terrain you can’t or shouldn’t cross, you shift your path to the side by 90 degrees for a predetermined distance, then turn back toward the intended line and continue. On your map you plot this right-angle leg, measure the offset distance, and rejoin the original bearing after clear of the obstacle. This keeps you moving toward the target while avoiding the blockage, using only map planning and measured distances. It’s a predictable way to detour without losing track of your overall route.

In map-only navigation, the 90-degree offset method is about bypassing obstacles with a controlled side detour. When the direct line to your objective is blocked by terrain you can’t or shouldn’t cross, you shift your path to the side by 90 degrees for a predetermined distance, then turn back toward the intended line and continue. On your map you plot this right-angle leg, measure the offset distance, and rejoin the original bearing after clear of the obstacle. This keeps you moving toward the target while avoiding the blockage, using only map planning and measured distances. It’s a predictable way to detour without losing track of your overall route.