In arresting gear energy absorption, which combination most accurately describes the energy-dissipation elements?

In arresting gear energy absorption, which combination most accurately describes the energy-dissipation elements?

• A. Brake components only
• B. Hydraulic dampers or energy absorbers and brake components
• C. Aircraft's landing gear itself handles all energy
• D. External air braking systems handle energy

Answer: (B)

Arrester energy absorption relies on converting the aircraft’s kinetic energy into heat through two main resistive elements: hydraulic dampers or energy absorbers and brake components. The hydraulic energy absorbers in the arresting gear take up the majority of energy as the system reels in the cable, limiting peak forces and controlling the rate of deceleration. Brake components provide additional dissipation and help absorb any remaining energy, ensuring the stopping distance stays within design limits and offering redundancy. Relying solely on the aircraft’s landing gear would not provide the controlled, carrier-based energy dissipation needed, and external air braking systems are not part of the arresting gear’s energy path. So the combination of hydraulic dampers or energy absorbers with brake components best describes how arresting gear dissipates energy.

Arrester energy absorption relies on converting the aircraft’s kinetic energy into heat through two main resistive elements: hydraulic dampers or energy absorbers and brake components. The hydraulic energy absorbers in the arresting gear take up the majority of energy as the system reels in the cable, limiting peak forces and controlling the rate of deceleration. Brake components provide additional dissipation and help absorb any remaining energy, ensuring the stopping distance stays within design limits and offering redundancy.

Relying solely on the aircraft’s landing gear would not provide the controlled, carrier-based energy dissipation needed, and external air braking systems are not part of the arresting gear’s energy path. So the combination of hydraulic dampers or energy absorbers with brake components best describes how arresting gear dissipates energy.