The M777A2 on-carriage elevating range spans from which to which mils?

The M777A2 on-carriage elevating range spans from which to which mils?

• A. -100 to +1000
• B. 0 to 1275
• C. -43 to +1275
• D. -50 to +1300

Answer: (C)

Elevation in artillery is set by the mechanical stops of the gun’s carriage, and mils are used because they map directly to ballistic calculations. The M777A2’s on-carriage elevating range is defined by those stops: it can depress a little below the horizontal and rise to a substantial angle above it. Specifically, the lower limit is -43 mils and the upper limit is +1275 mils. That means the usable span is from -43 to +1275 mils, which is roughly -2.4° to +71.7°. This range reflects the actual hardware limits of the elevation mechanism, allowing a small downward tilt for firing from lower positions and a high elevation for steep trajectories. Other options don’t match these mechanical limits: they either omit depression, cap the elevation too low, or overshoot what the hardware can physically do.

Elevation in artillery is set by the mechanical stops of the gun’s carriage, and mils are used because they map directly to ballistic calculations. The M777A2’s on-carriage elevating range is defined by those stops: it can depress a little below the horizontal and rise to a substantial angle above it. Specifically, the lower limit is -43 mils and the upper limit is +1275 mils. That means the usable span is from -43 to +1275 mils, which is roughly -2.4° to +71.7°. This range reflects the actual hardware limits of the elevation mechanism, allowing a small downward tilt for firing from lower positions and a high elevation for steep trajectories. Other options don’t match these mechanical limits: they either omit depression, cap the elevation too low, or overshoot what the hardware can physically do.