What is the rate of descent for the T-11 main parachute with a suspended weight of 400 lbs?

The T-11 main parachute is designed with specific performance characteristics, including its rate of descent. For a suspended weight of 400 lbs, the T-11 has a rate of descent of approximately 18.5 feet per second. This is consistent with the design of the parachute, which emphasizes stability and a controlled descent rate.

It's important to understand that the T-11 parachute has been optimized for various weights, and the descent rate can vary based on the weight carried. However, at the specified weight of 400 lbs, 18.5 feet per second is the recognized descent rate, making it the correct choice. This rate allows for a safe landing while ensuring that the parachute provides adequate time for maneuverability and adjustment during the descent. Such performance characteristics are crucial for military parachuting and ensure that the parachutist can land safely in a variety of operational conditions.