If a visual altimeter is broken or misadjusted, what is the maximum acceptable misreading for the Jumper's altimeter?

• A. 250 ft
• B. 500 ft
• C. 750 ft
• D. 1000 ft

Answer: (B)

The maximum acceptable misreading for a Jumper's altimeter, when a visual altimeter is broken or misadjusted, is set at 500 feet. This standard is established to ensure that jumpers have a reliable measure of altitude for safe parachute deployment and descent. If the altimeter readings can vary significantly, it may result in premature or delayed parachute release, increasing the risk of injury or operational failure.

Setting the threshold at 500 feet strikes a balance between safety and practicality, allowing for some error while still providing a reasonable margin to ensure jumpers can deploy their parachutes safely under the right conditions. A larger misreading threshold could lead to unsafe jumps, while a smaller one could be overly strict and potentially cause unnecessary operational difficulties. Thus, 500 feet is an established standard that reflects careful consideration of these factors in jump operations.