'The second evacuation (after Operation Babylift) had been going on quietly for many days, relying on standard civilian and military airlift and virtually anything that would float. Some 57,700 were flown out by fixed wing aircraft, and 73,000 left by sea. About 5,000 Americans were evacuated--everyone who wished to come--plus many foreigners. South Vietnamese who were airlifted out were for the most part people whose service to their government or to the United States made them candidates for execution by the Communists.'
'Frequent Wind turned out to be the helicopter evacuation of Saigon from the Defense Attaché's Office at Tan Son Nhut and from the embassy compound itself. Some 6,236 passengers were removed to safety, despite severe harassing fire. To some, however, it seemed that the DAO area and the evacuation process itself were deliberately spared by the North Vietnamese.
At the embassy, large helicopters used the walled-in courtyard as a landing pad while small helicopters lifted people from the roof. Despite the lack of time and inadequate landing facilities, crews performed with remarkable precision.
On April 29 and 30, 662 US military airlift flights took place between Saigon and ships 80 miles away. Ten Air Force HH/CH-53s flew 82 missions, while 61 Marine Corps CH-46s and CH-53s flew 556 sorties. There were 325 support aircraft sorties by Marine, Navy, and USAF aircraft. Air America, the CIA proprietary airline, joined in, having flown 1,000 sorties in the previous month. Air America crews distinguished themselves with a selfless bravery not usually attributed to "mercenaries."
The end came on April 30. At 4:58 a.m., a CH-46 helicopter, call sign "Lady Ace 09," flown by Capt. Jerry Berry, transported Martin from the embassy roof to the waiting US fleet. At 7:53 a.m., the last helicopter lifted off, carrying Marine personnel who had been defending the embassy. It left behind many South Vietnamese (250 to 400, depending upon which source is consulted) who had been promised escape. They were simply abandoned. It was the last of a long series of US betrayals in Vietnam.
There were more evacuations to come, unplanned and totally chaotic. Every South Vietnamese helicopter was crammed with people and these were flown, like a swarm of bees, to the waiting ships of the 7th Fleet. The helicopters would land (sometimes on top of each other) and their occupants would be disarmed and led away. The helicopters would then be dumped over the side to make room for the next one incoming. At least 45 were disposed of like this; many more were stored for future use.'