USAF HGU-26 B-52 Pilot Flight Helmet Medium Gentex. The item "USAF HGU-26 B-52 Pilot Flight Helmet Medium Gentex" is in sale since Thursday, August 12, 2021. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "int11nyc" and is located in Pensacola, Florida. This item can be shipped to United States, Canada, Bahamas, Uruguay.