Parachute Harness Sensing Release Unit backup: Sea Water activated release system

• A. It triggers automatic parachute release when altitude is exceeded
• B. It manually releases parachute with a handle
• C. It seals the parachute during high wind
• D. Sea Water activated release system that provides a back up automatic mode of separating the parachute from the aircrew

Answer: (D)

Sea-water activation serves as a backup automatic mode to detach the parachute from the aircrew after ejection, especially when the incident occurs over water. A sensing element detects seawater and triggers the release so the canopy separates from the harness, reducing drag and preventing the parachute from pulling the aircrew underwater or snagging them during a water landing. This automatic backup is crucial if the primary release method or crew actions fail or are unavailable. It isn’t about altitude-triggered release, manual handle operation, or sealing the canopy in high wind—those functions are different and do not provide the water-based automatic separation needed for survivability in a sea environment.