Which life preserver assembly can be used only in aircraft equipped with ejection seats?

The LPU-36/P life preserver assembly is specifically designed for use in aircraft that are equipped with ejection seats. This life preserver includes features that cater to the needs of personnel who may require quick evacuation from an aircraft, especially during emergency situations where ejection is necessary.

The design of the LPU-36/P enables it to be deployed effectively in conjunction with ejection seat systems, ensuring that it does not interfere with the ejection process. It incorporates safety mechanisms and buoyancy capabilities suitable for high-speed ejection scenarios, which is critical to ensure the safety of the individual in water survival situations after an ejection.

In contrast, other life preserver assemblies may not have the specialized features required for ejection seat operations or could be designed for general use without the considerations necessary for rapid deployment from high-performance aircraft.