What is the primary altitude at which a Jumpmaster will monitor oxygen requirements for passengers?

• A. 2,000 feet AGL
• B. 3,500 feet AGL
• C. 4,500 feet AGL
• D. 5,000 feet AGL

Answer: (B)

The primary altitude at which a Jumpmaster monitors oxygen requirements for passengers is 3,500 feet AGL (Above Ground Level). This altitude is significant because it is recognized as a threshold where the partial pressure of oxygen begins to decrease to levels that may lead to hypoxia for unacclimated individuals. Therefore, at 3,500 feet AGL, the Jumpmaster must ensure that passengers are adequately prepared and have access to supplemental oxygen if necessary, ensuring safety during airborne operations. This altitude is part of standard operating procedures for many jump operations to ensure the health and safety of individuals before they exit the aircraft.