Marine Medium Tiltrotor Squadron 161 (VMM-161) is a United States Marine Corps tiltrotor squadron that operates the MV-22 Osprey. The squadron, known as the "Greyhawks", is based at Marine Corps Air Station Miramar, California and falls under the command of Marine Aircraft Group 16 (MAG-16) and the 3rd Marine Aircraft Wing (3rd MAW). The squadron has the distinction of being the first helicopter transport squadron in the world and regularly utilizes the phrase “The First, The Best”.

Mission:

VMM-161

Provide assault support transport of combat troops, supplies and equipment during expeditionary, joint or combined operations. Be prepared for short-notice, worldwide employment in support of Marine Air-Ground Task Force operations.

VMM-161

History

Korean War & the early 1960s

The squadron was commissioned on January 15, 1951, at Marine Corps Air Station El Toro, California, as Marine Helicopter Transport Squadron 161 (HMR-161), Air Fleet Marine Force Pacific. The squadron moved a month later to Marine Corps Air Facility Santa Ana, California to train on their new helicopter, the Sikorsky HRS-1. Except for the commanding officer, LtCol George Herring, most pilots in the squadron had flown fighters during World War II. In August 1951 the squadron deployed to South Korea and attached to the 1st Marine Aircraft Wing (1st MAW), where it operated in the central and the western fronts.

VMM-161

HMR-161 successfully flew from the to test new concept of combining vertical envelopment with amphibious assault during Operation Marlex-5 off the coast of Inchon on September 1, 1952. While not the first ever ship to shore helicopter flight with Marines aboard, that having been done by HMR-162 during Operation Lex Baker off the coast of Southern California in February, 1952, it was the first on foreign shores. During the course of the Korean War, HMR-161 flew 16,538 hours during 18,607 sorties eventually accounting for over 60,000 troop movements and moving 7.5 million pounds of cargo. The squadron then participated in the defense of the Korean Demilitarized Zone (DMZ) from July 1953 to March 1955. The squadron then relocated that month to Marine Corps Air Station Kaneohe Bay, Hawaii, and attached to Marine Aircraft Group 13 (MAG 13). While in Hawaii, HMR-161 was redesignated on December 31, 1956, as Marine Helicopter Transport Squadron (Light) 161 (HMR(L)-161), MAG 13, 1st MAW. In May 1960, the Squadron received the new Sikorsky H-34 Seahorse.

On February 1, 1962, the unit was once again re-designated as Marine Medium Helicopter Squadron 161 (HMM-161), MAG 13, 1st Marine Brigade. On October 3, 1962, the squadron assisted NASA by recovering astronaut Wally Schirra and his Project Mercury capsule Sigma Seven out of the Pacific after a successful launch into space.

During 1963, Marine Medium Helicopter Squadron 161 (HMM-161) assisted in several biological warfare tests conducted under Project SHAD at Pearl Harbor, Kaneohe Naval Air Station and in the Pacific Ocean, near Oahu, Hawaii. The rest of the early 1960s were spent conducting anti-guerrilla training in preparation for deployment to South Vietnam.

Vietnam War and the 1980s

HMM-161 departed Hawaii on March 15, 1965, on board the and arrived at Marine Corps Air Facility Futema, Okinawa, Japan on March 27. On April 27 the squadron departed Okinawa on board the headed for South Vietnam. May 6 saw the squadron lifting elements of the 4th Marine Regiment ashore at Chu Lai and on May 15, the squadron began operating from the . Finally on May 25, 1965, HMM-161 came ashore at Chu Lai and was assigned under the command of Marine Aircraft Group 16 (MAG-16), and the 1st Marine Aircraft Wing (1st MAW). On June 12 the squadron again relocated, this time to the Phu Bai Combat Base.