Which airport index classification is for aircraft under 90 feet in length?

• A. Index B
• B. Index C
• C. Index A
• D. Index D

Answer: (C)

The classification for aircraft under 90 feet in length is Index A. This classification is part of the airport index system that helps determine the level of firefighting services and resources needed at an airport based on the size of aircraft operating there.

Index A specifically accommodates smaller aircraft, as they pose a lower risk in terms of potential fire and rescue needs compared to larger aircraft. Therefore, airports that primarily handle smaller airplanes can efficiently plan their firefighting operations and equipment to meet the necessary safety standards.

In contrast, the other classifications—such as Index B, C, and D—correspond to larger aircraft with increasing dimensions and complexity in their fire suppression requirements. Each of these indexes is designed to reflect the size and potential hazards associated with larger aircraft, which necessitate more extensive resources and equipment for effective emergency response.