What gear will vehicles be in when loaded into the aircraft?

The correct choice is that vehicles will be in the lowest gear possible when loaded into the aircraft. This position is essential for several reasons related to safety and operational efficiency during loading and transport.

Engaging the lowest gear minimizes the risk of the vehicle rolling or moving unexpectedly during the loading process. It ensures that the vehicle remains securely in place once it is inside the aircraft, as it helps to engage the transmission and prevent any potential movement caused by shifts in weight or vibrations during flight. This is crucial for maintaining stability and safety both during the loading process and while in transit.

Additionally, being in the lowest gear helps to maintain control during the loading phase, allowing operators to manage the vehicle's descent into the aircraft more effectively. This method lowers the risk of accidents or mishaps, ensuring that all loading procedures can be conducted smoothly.

In comparison, options like reverse gear, neutral gear, or high gear do not provide the same level of security and control necessary for safely transporting vehicles by air. Thus, the most appropriate choice is for vehicles to be in the lowest gear possible to enhance safety during the loading procedure.