Grass height around the air field must be between how many inches?

Grass height around the air field must be between how many inches?

• A. 3-5
• B. 7-12
• C. 7-14
• D. 14-20

Answer: (C)

Maintaining grass at a moderate height is essential for safe aircraft operations on a turf or grass airfield. When grass is kept in a range that’s neither too short nor too tall, it helps protect the soil from erosion, reduces the amount of debris that could be thrown up into the landing gear or engines, and keeps the field edge visible to pilots. The seven to fourteen inch range achieves this balance: it provides enough ground cover to cushion the surface and control dust, while staying high enough not to obscure hazards or hinder wheel contact and braking during takeoffs and landings. Heights outside this range can create problems—too short can lead to increased erosion and debris exposure, while too tall can obscure runway edges and reduce braking effectiveness and visibility.

Maintaining grass at a moderate height is essential for safe aircraft operations on a turf or grass airfield. When grass is kept in a range that’s neither too short nor too tall, it helps protect the soil from erosion, reduces the amount of debris that could be thrown up into the landing gear or engines, and keeps the field edge visible to pilots. The seven to fourteen inch range achieves this balance: it provides enough ground cover to cushion the surface and control dust, while staying high enough not to obscure hazards or hinder wheel contact and braking during takeoffs and landings. Heights outside this range can create problems—too short can lead to increased erosion and debris exposure, while too tall can obscure runway edges and reduce braking effectiveness and visibility.