Howze is recognized as the intellectual force behind the concept of air-mobility and current United States Army Aviation doctrine. While serving as the first Director of Army Aviation, Department of the Army, from 1955 to 1958, he developed new tactical principles for the employment of Army Aviation, and was instrumental in helping the Aviation Center and School become fully established in its new home at Fort Rucker, Alabama. He then became Commanding General of the 82d Airborne Division. In 1961, as Chairman of the Tactical Mobility Requirements Board, Howze led the development in airmobile theory and doctrine. The army's adoption of the recommendations in the Howze Board changed mobile warfare. Its revolutionary concepts – based on the use of aviation – changed military attitudes in a similar manner to the way the tank affected ideas on mobility 50 years earlier. Two years later the 11th Air Assault Division was formed to test and validate these concepts. As a result of Howze's leadership, foresight and perception, two air-mobile divisions were eventually established. These divisions, which still adhere to the fundamentals of Howze's air-mobility doctrine, have gone on to provide mobile and combined arms capabilities that are required in today's ground combat conditions. Howze is credited with starting the convention of naming United States Army helicopter types after Native American tribes, because he found the names suggested by the manufacturers too insipid. The Bell H-13, which had already been in service for some years, was renamed "Sioux" at his suggestion and the tradition continues to the present day.
Howze remained active after leaving the army and became an executive and consultant for Bell Helicopter in Fort Worth. As a 1957 Charter Member of the Army Aviation Association of America, he served for four years as the organization's Senior Vice President and President. He was also a member of the Army Aviation Hall of Fame and was the Chairman of the AAAA's Board of Trustees. Howze died on December 8, 1998, and was buried next to his father at the United States Military Academy Post Cemetery. The Howze Gunnery Award is presented by the AAAA and is sponsored by Rockwell International Corporation, and is presented annually to the top AH-1 & AH-64 crew in the annual GEN Hamilton H. Howze Gunnery Competition. Past awardees include CW2 John S. Van Buren & 1LT Michael J. Blatz, B Company, 1st Battalion, 3rd Avn. Regiment, 2nd Armored Div., APO NY, WO1 Jose E. Trejeda & CW2 John L. Kercheville, AH-1 crew, C & D Trps, 1–7 Cavalry, 1st Cav Div, Ft. Hood, TX, and CW2 Jarrett R. Brewer & WO1 Kevin E. Smith, AH-64 crew, C Troop, 6th Cav Regt, Ft. Hood, TX.
