Final answer:
The UH-60M design enhanced E3 protection through shielded volumes and grounding, replacing some composite panels with Nomex and Kevlar, known for flame-resistant properties in military applications.
Step-by-step explanation:
The UH-60M design includes measures to provide Electromagnetic Environmental Effects (E3) protection. To protect systems, subsystems, and equipment, this design has implemented shielded volumes within the airframe and incorporated grounding and bonding techniques to comply with ADS-37A requirements. In some areas of the airframe, panels that were previously made from composite materials have been replaced with Nomex and Kevlar materials. These materials are known for their flame-resistant properties and are commonly used in military applications, such as flight suits, tank driver hoods, and other protective gear. An example of Nomex's usage is in the suits worn by military pilots to protect against the risk of cockpit fires. Kevlar also plays a critical role in protection, being used in helmets that can absorb the impact of a grenade blast, among other applications.
These material choices not only enhance the structural integrity of aircraft like the UH-60M but also significantly increase safety by providing resistance to fires and other hazards. The integration of such materials into aircraft design is a testament to the advancements in engineering and materials science that contribute to the evolving capabilities of military aircraft.