Wednesday, April 23, 2025

Russo-Ukrainian War: The Gentex HGU-56/P Rotary Wing Helmet System

Source: inukraine_official on Instagram

     A Ukrainian WSO (Weapon Systems Officer) seated in the forward cockpit of a Mil Mi-24 (NATO reporting name Hind) helicopter gunship. He is wearing a decorated Gentex HGU-56/P Rotary Wing Helmet System, a popular flight helmet for Ukrainian Mi-24 pilots and WSOs rather than the vintage Soviet-era ZSH-3B helmets from the 1980s.

     The HGU-56/P has a weight of 2.95 pounds and features a Gentex attenuating liner within a graphite/aramid fiber shell. The liner not only reduces the effects of impact forces but is also shaped in such a way that the wearer's head is kept forward, increasing the field of view by 3 degrees (in comparison to similar helmets). While seemingly a very small number, the boosted view arc can mean the difference between spotting or not spotting a threat to the helicopter. The HGU-56/P uses a lightweight retention system the allows it to be compatible with HMD (Helmet Mounted Display) units, communication systems, and even oxygen delivery systems.

     The WSO has added the Gentex Maxillofacial Shield (MFS) for the HGU-56/P which is an optional add-on. The MFS weighs only 5 ounces but protects the wearer's lower face from flying debris (such as that kicked up by rotor wash) and can even resist fragmentation traveling at no more than 550 feet per second. Another benefit to the MFS is that the helmet's microphone (fitted to the left side of the helmet) is placed behind the MFS which reduces the ambient noise thereby enhancing clarity.

     Another piece of optional kit the WSO has on his helmet is a Wilcox DPAM (Dual Powered Aviation Mount) utilized for NVGs (Night Vision Goggles). On the back is a quick release plate which fits to the helmet. The DPAM uses a Lemo 4-pin connector which allows the NVG connected to the mount to run off the helicopter's power or, if need be, the DPAM has its own power supply via batteries to operate the NVG. The Lemo connector can be seen on the right side of the DPAM while the lever in the center of the mount is the switch for external power or battery power.

     While the “MILF Operator” patch and the other morale patches need little explanation, the WSO has drawn the chemical symbol for epinephrine on his helmet, better known as adrenaline.