The Fall of Saigon and Operation Frequent Wind with Major General Delligatti USAFA Class of 1959
Lifeline at Tan Son Nhut
Major General Bob Delligatti, USAFA Class of 1959, and the Last Airlift from Saigon, Operation Frequent Wind
In the frantic final weeks of April 1975, the concrete flightline at Tan Son Nhut Air Base was the primary gateway out of a collapsing South Vietnam. Fourteen North Vietnamese divisions had closed their artillery ring around Saigon. Inside the Defense Attaché Office (DAO) compound, thousands of fleeing Americans, foreign nationals, and at-risk Vietnamese allies crowded the gate, waiting for a way out. Major Robert "Bob" S. Delligatti, United States Air Force Academy Class of 1959, was the standing in the center of this massive fixed-wing operation responsible for getting them into the air.
Delligatti served as the Supervisor of Airlift at Tan Son Nhut. His team set up their nerve center inside the Evacuation Control Center Flying Tiger Line facility on the flightline, a post known across the base simply as "Tiger Ops." From there, working alongside Seventh Air Force and PACAF airlift managers, Delligatti ran the fixed-wing throughput. Official passenger limits vanished under the weight of human desperation. C-141 Starlifters and C-130 Hercules transports rated for a hundred passengers regularly lifted off with nearly two hundred refugees packed shoulder-to-shoulder on cargo floors. Between April 5 and April 29, Tiger Ops directed 375 fixed-wing sorties, pulling more than 45,000 people to safety.
Getting those evacuees through the base gates, however, was a relentless crisis. The national plan—originally codenamed Talon Vise before becoming Operation Frequent Wind—relied on a stepped strategy: commercial air, military air, river sealift, and finally helicopters. But as enemy artillery drew closer, civilian contract drivers abandoned their routes and Saigon's streets paralyzed.
The system broke down, so the men on the ground improvised.
Volunteers and officers secured whatever transport they could find—buses, utility vans, trucks—and drove out into the city themselves. USAFA '59 Classmate and Class Scribe, Dick Carr, recalled how Delligatti personally took direct initiative during those final chaotic hours, commandeering transport buses to retrieve stranded families and pushing through blocked checkpoints to get them back inside the perimeter. Once those makeshift convoys breached the gates, Delligatti’s team at Tiger Ops funneled the passengers directly onto waiting C-130s or routed them toward river barges heading down to the sea.
While Delligatti managed the tarmac in Saigon, his USAFA Class of 1959 classmates were flying the grueling trans-pacific air bridge. Aviators like Lt. Col. Joseph G. DeSantis ('59) flew C-141 Starlifters on continuous runs, shuttling evacuees from Vietnam to staging camps in the Philippines, Guam, and Wake Island, before bringing them to reception centers in the United States.
The sobering reality of the airlift was felt on April 4, 1975, during the opening flight of Operation Babylift. Shortly after departing Tan Son Nhut with over three hundred orphans, escorts, and DAO personnel, a C-5A Galaxy suffered a catastrophic, explosive door failure and crashed in a nearby rice paddy. One hundred thirty-eight people died. Among the victims was Captain Mary Therese Klinker, a USAF flight nurse who gave her life caring for the children on board. Capt. Klinker holds the distinction of being the only female U.S. Air Force service member named on the Vietnam Veterans Memorial Wall. Despite the tragedy, C-141 and C-130 aircrews continued flying around the clock, moving thousands of orphans and refugees over the following three weeks.
Fixed-wing operations ended abruptly on April 28–29, when captured A-37 jets bombed the flightline. Early the next morning, heavy artillery destroyed a C-130 on the tarmac and cratered the runway. Ambassador Graham Martin ordered the execution of Level Four for a full helicopter evacuation under Operation Frequent Wind.
The Tiger Ops airlift shifted instantly. U.S. Air Force and U.S. Marine Corps helicopters began lifting evacuees directly off the Saigon compound grounds out to the Seventh Fleet waiting offshore. Delligatti stayed until the fixed-wing capability was to the absolute limit. He was extracted with the final group of DAO personnel via helicopter, landing on the aircraft carrier flight deck of the USS Midway in the South China Sea. For his leadership and courage under fire during those final days, he was awarded the Bronze Star Medal with "V" device for valor.
Delligatti’s career after Vietnam continued to reflect that same operational grounding. He returned to his alma mater in Colorado Springs in 1982 to serve as Chief of Staff of the U.S. Air Force Academy, helping shape the next generation of officers. He later served as Deputy Chief of Staff for Plans at Air Training Command and Chief of Staff for Headquarters U.S. Air Forces in Europe during the closing years of the Cold War. After retiring as a Major General in 1994, he spent seventeen years on the Board of Trustees for the Air Force Aid Society.
He remains a vital part of the Class of 1959 legacy—not just for the rank he achieved, but for what he did on a cratered runway at Tan Son Nhut when thousands of lives depended on keeping the line moving.
Read Major General Robert Delligatti's Full Bio Here
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