Which weight calculation includes crew and emergency equipment?

The operating weight is the correct choice because it encompasses the total weight of the aircraft that includes the aircraft's basic weight plus the crew and the necessary equipment for flight, including emergency supplies. In detail, operating weight typically consists of the following components:

1. Basic weight, which has the structural weight of the aircraft and standard equipment.

2. Crew members who are necessary for the operation of the aircraft.

3. Emergency equipment, such as life jackets and fire extinguishers, which must be on board at all times for safety purposes.

Other options do not include this specific combination of factors. Basic weight only accounts for the aircraft and standard equipment without crew or additional supplies. Gross weight refers to the total weight of the aircraft at a specific point, fully loaded including all passengers, cargo, and fuel, but it does not specifically highlight the crew and emergency equipment in its basic calculation. Zero fuel weight, meanwhile, is the total weight of the aircraft without any usable fuel, excluding any weight from fuel sources but does account for the crew and emergency equipment, just like operating weight. However, zero fuel weight does not have the same comprehensive scope as operating weight, which explicitly states that it includes the crew and necessary equipment for flight operations in its total.