Which helicopter design has a lower risk of dynamic rollover?

The choice that identifies the helicopter design with a lower risk of dynamic rollover is based on the characteristics of rotor systems. Fully articulated rotor systems allow for greater flexibility and movement of the rotor blades, which helps in managing the aerodynamic forces acting on the helicopter. This flexibility can effectively dampen the effects of asymmetric loading, reducing the likelihood of a rollover during certain maneuvers, particularly when transitioning from hover to forward flight or during landings.

In contrast, teetering rotor systems, primarily found in some rotorcraft designs like the Bell 47, have limitations in how the blades can respond to torque changes. The fixed nature of the teetering system increases the susceptibility to dynamic rollover when encountering uneven ground or abrupt inputs.

While weight and skids also influence stability and control, they do not directly pertain to the core mechanical design of the rotor system concerning dynamic rollover risks. Heavier weights can help in establishing a higher center of gravity that may contribute to stability, but it does not inherently reduce the risk of dynamic rollover compared to the advantages offered by a fully articulated rotor system. Similarly, higher skids might provide a wider stance, but they do not compensate for the fundamental rotor dynamics involved in rollover scenarios.

Therefore, the design of fully articulated