Rear Adm. John Lemmon is a native of Champaign, Illinois. He graduated from the U. S. Naval Academy in 1988 with a Bachelor of Science degree. He was designated a naval aviator in 1990. In 2004 he graduated from the Naval Post Graduate School with a Master of Science in Systems Engineering.
Lemmon served operationally in Carrier Airborne Early Warning Squadron (VAW) 122, VAW-124, and VAW-123, where he flew the E-2C Hawkeye aboard USS Forrestal (CV 59), USS Theodore Roosevelt (CVN 71), and USS John F. Kennedy (CV 67). He also served as commander, Task Group 67.8, Horn of Africa, in support of irregular warfare contingency operations.
He is also a 1995 graduate of U.S. Naval Test Pilot School, Patuxent River, Maryland, Class 107, he has served in numerous acquisition assignments. His test experience includes a tour at Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, where he worked on numerous upgrades to E-2 and C-2 aircraft, and later as chief test pilot and commanding officer of Air Test and Evaluation Squadron (VX) 20, Naval Air Station, Patuxent River. His program management experience includes serving as the program manager for the E-2/C-2 Airborne Tactical Data System Program Office (PMA-231) and as the program manager for the Air Warfare Mission Area: from the Air Program Office (PMA-298).
Other acquisition tours include an assignment at the Naval Air Depot, North Island, California, and as executive assistant to the Assistant Secretary of the Navy for Research, Development and Acquisition. In his previous assignment, he served as vice commander, Naval Air Systems Command.
Lemmon assumed his current position as commander, Naval Air Warfare Center Aircraft Division and assistant commander for Research and Engineering, Naval Air Systems Command, in September 2018.
Lemmon is an aerospace engineering duty officer and a graduate of the Defense Systems Management College Advanced Program Management Course. He has logged 324 carrier arrested landings and over 3,400 flight hours in multiple aircraft models, including turboprop, jet, helicopter, multi-engine, piston, tail-wheel and sailplane.