The Funk F-23 was an agricultural aircraft produced in the United States during the 1960s.
The F23 is a five-speed manual transmission manufactured by Getrag in Italy.
The Hirth F-23 is a twin cylinder, horizontally-opposed, two stroke, carburetted or optionally fuel injected aircraft engine designed for use on ultralight aircraft.
ICD-10 is an international statistical classification produced by the World Health Organization.
The Northrop/McDonnell Douglas YF-23 was an American single-seat, twin-engine stealth fighter aircraft technology demonstrator designed for the United States Air Force (USAF).