CPO Sevalas' rating insignia identifies him as an Aviation electronics technician, they are responsible for the maintenance of radar, navigation and electrical avionic systems on Naval aircraft. Sevalas' is also wearing the Naval Aviation Observer badge, which along with his rank indicates he is a senior technician that sometimes performs maintenance or modification of aircraft avionic systems while in-flight, as the Aviation Observer badge is granted to non-pilot and non-flight officer aviation mission specialists who regularly fly as crew members on certain Naval aircraft.
The Aviation Observer badge is also called the Naval Flight Meteorologist badge as it is also granted to meteorologists who are part of aircraft crew, most commonly on Northrop Grumman E-2 Hawkeyes, which are the Navy's carrier-capable airborne early warning aircraft, which act as mobile radar and signal intercept platforms and are used as mobile command centers at times. It is from these types of aircraft that aviation meteorologists often serve on in order to give pilots of combat aircraft real-time weather information. Naval Intelligence and Cryptology officers also serve aboard the E-2 Hawkeye and are eligible for the Naval Aviation Observer/Meteorologist badge.
The Aviation Observer badge is also called the Naval Flight Meteorologist badge as it is also granted to meteorologists who are part of aircraft crew, most commonly on Northrop Grumman E-2 Hawkeyes, which are the Navy's carrier-capable airborne early warning aircraft, which act as mobile radar and signal intercept platforms and are used as mobile command centers at times. It is from these types of aircraft that aviation meteorologists often serve on in order to give pilots of combat aircraft real-time weather information. Naval Intelligence and Cryptology officers also serve aboard the E-2 Hawkeye and are eligible for the Naval Aviation Observer/Meteorologist badge.