Kelly Manufacturing Company/ RC Allen Instruments

Kelly Manufacturing Company is the manufacturer of the R.C. Allen line of instruments. KMC is the largest manufacturer of general aviation aircraft instruments in the world and has two manufacturing plants. One is situated in the downtown area of Wichita, Kansas, and the second is located in Grenola, Kansas. Both plants also operate FAA licensed repair stations. Today, the R.C. Allen brand still retains its position as aviation’s most trusted line of aircraft instruments worldwide. KMC manufactures a wide range of quality instruments for a variety of military and general aviation aircraft. With the introduction of the new RCA 2600 Series Digital Horizon and the new Emergency Standby Power (ESP) battery backup, KMC stays on the cutting edge of aviation technology and safety.