When the rotor RPM is above 70%, the mast moment indication is depicted by a __________ scale; what type of scale?

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Multiple Choice

When the rotor RPM is above 70%, the mast moment indication is depicted by a __________ scale; what type of scale?

Explanation:
High rotor speed calls for a quick, at-a-glance read of how close the mast moment is to the limit. A circular dial provides exactly that: a needle moving around a circular face lets you see the current value relative to safe and over-limit zones in one glance, and it can clearly show changes as the rotor speed stays above 70%. This shape is common for gauges that need continuous, rapid interpretation, with color-coded or marked zones to emphasize safe vs. critical ranges. A linear scale would be harder to judge at a glance, and a digital readout would show numbers rather than a quick visual cue. So the mast moment is depicted by a circular scale.

High rotor speed calls for a quick, at-a-glance read of how close the mast moment is to the limit. A circular dial provides exactly that: a needle moving around a circular face lets you see the current value relative to safe and over-limit zones in one glance, and it can clearly show changes as the rotor speed stays above 70%. This shape is common for gauges that need continuous, rapid interpretation, with color-coded or marked zones to emphasize safe vs. critical ranges. A linear scale would be harder to judge at a glance, and a digital readout would show numbers rather than a quick visual cue. So the mast moment is depicted by a circular scale.

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