Daily Archives: January 3, 2017

3 January 1981

One of the first Boeing 707 airliners delivered to Pan American World Airways, Clipper Maria, N707PA. (Pan Am)
One of the first Boeing 707 airliners delivered to Pan American World Airways, N707PA. (Pan Am)

3 January 1981: Pan American World Airways retired its last Boeing 707 airliner. Pan Am had been the launch customer for the 707. On 20 October 1955 the airline ordered 20 707s, and later ordered 130 more. The first one, Clipper America, a 707-121, N707PA, was delivered 15 August 1958. On 26 October 1958, N711PA, also named Clipper America, made the first regularly scheduled transatlantic flight by a jet airliner. (At least three Pan Am 707s carried the name Clipper America. N709PA was renamed Clipper Tradewind. N710PA, was renamed Clipper Caroline. N711PA was renamed Clipper Mayflower.)

The Boeing Model 707-121 was a four-engine jet transport with swept wings and tail surfaces. The leading edge of the wings were swept at a 35° angle. The airliner had a flight crew of four: pilot, co-pilot, navigator and flight engineer.

The 707-121 was 145 feet, 1 inch (44.221 meters) long with a wing span of 130 feet, 10 inches (39.878 meters). The top of the vertical fin stood 42 feet, 5 inches (12.929 meters) high. The 707 pre-dated the ”wide-body” airliners, having a fuselage width of 12 feet, 4 inches (3.759 meters). The airliner’s empty weight is 122,533 pounds (55,580 kilograms). Maximum take off weight is 257,000 pounds (116,573 kilograms).

The first versions were powered by four Pratt & Whitney Turbo Wasp JT3C-6 turbojet engines, producing 11,200 pounds of thrust (49,820 kilonewtons), and 13,500 pounds (60.051 kilonewtons) with water injection. This engine was a civil variant of the military J57 series. It was a two-spool axial-flow turbojet engine with a 16-stage compressor and 2 stage turbine. The JT3C-6 was 11 feet, 6.6 inches (3.520 meters) long, 3 feet, 2.9 inches (0.988 meters) in diameter, and weighed 4,235 pounds (1,921 kilograms).

At MTOW, the 707 required 11,000 feet (3,352.8 meters) of runway to take off.

The 707-121 had a maximum speed of 540 knots (1,000 kilometers per hour). It’s range was 2,800 nautical miles (5,186 kilometers).

The Boeing 707 was in production from 1958 to 1979. 1,010 were built. Production of 707 airframes continued at Renton until the final one was completed in April 1991. As of 2011, 43 707s were still in service.

Pan American World Airway's Boeing 707-139B, N778PA, Clipper Skylark, along with many of her sisterships, in storage at Marana Air Park, Arizona.
Pan American World Airway’s Boeing 707-139B, N778PA, Clipper Skylark, along with many of her sisterships, in storage at Marana Air Park, Arizona. (Goleta Air & Space Museum)

© 2017, Bryan R. Swopes

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3 January 1944

Major Gregory Boyington, U.S. Marine Corps. (USMC)
Major Gregory Boyington, United States Marine Corps. (U.S. Navy)

3 January 1944: Major Gregory Boyington, United States Marine Corps, commanding VMF-214 at Bouganville, Solomon Islands, led 48 fighters in an attack against the Japanese naval base at Rabaul on the island of New Britain in the Bismarck Archipelago.

Flying a Vought-Sikorsky F4U-1¹ Corsair, Bu. No. 17915, Boyington shot down four enemy airplanes, bringing his total score to 28.² He was then himself shot down. Wounded by bullets and shrapnel and with his Corsair on fire, Boyington parachuted to the ocean only 100 feet (30 meters) below. He was rescued by a Japanese submarine a few hours later. He was eventually taken to Japan and imprisoned for the next 20 months under the harshest conditions.

Believed to have been killed, Major Boyington was “posthumously” awarded the Medal of Honor.

Gregory Boyington graduated from the University of Washington in 1934 with a bachelor’s degree in aeronautical engineering. He then went to work at Boeing in Seattle. He had been in the Reserve Officers Training Corps during college, and served in both the Army’s coastal artillery and the Marine Corps Reserve.

On 13 June 1935, Boyington enlisted as a private in the U.S. Marine Corps. He was accepted as an aviation cadet 11 February 1936, and trained as a Naval Aviator at NAS Pensacola, Florida. He graduated and was commissioned as a second lieutenant, 2 July 1937, and promoted to first lieutenant, 1 July 1940. He served with the fleet until 1941.

Lieutenant Boyington resigned 27 August 1941, when he joined the American Volunteer Group in China, better known as the “Flying Tigers.” Flying the Curtiss Hawk 81-A3, he claimed six enemy aircraft destroyed (though he is officially credited with 3.5) in combat against the Japanese who had invaded China.

Left to right, Johnny Farrel, Flight Leader Pappy Boyington, and John Croft, 1st Squadron, American Volunteer Group, China, 1942. (Republic of China Air Force)
Left to right, Johnny Farrel, Flight Leader Gregory Boyington, and John Croft, 1st Squadron, American Volunteer Group, China, 1942. (Republic of China Air Force)

In 1942, Boyington returned to the United States and was reinstated in the Marine Corps, with the rank of major. After serving with several squadrons in administrative positions, he was placed in command of Marine Fighter Squadron Two Hundred Fourteen (VMF-214, “Black Sheep”), a squadron based in the Solomon Islands. Older than most of the pilots in his squadron, he was given the nickname “Pappy.”

During an 84-day period, VMF-214 pilots destroyed or damaged 203 enemy airplanes. Eight of these pilots became aces, with a total of 97 confirmed air-to-air kills.

VMF-214  flew the Vought-Sikorsky Aircraft F4U-1 Corsair, a single-seat, single-engine fighter designed for operation aboard aircraft carriers. The Corsair is best known for its distinctive “gull wing,” which gave clearance for its 13 foot, 4 inch (4.064 meter) diameter propeller without excessively long landing gear struts.

Vought F4U-1A Corsair of VMF-214, Torokina, 1942. (U.S. Navy)
Vought-Sikorsky F4U-1 Corsair circa 1943. (U.S. Navy)

The F4U-1 was had a length of 33 feet, 4.125 inches (10.163 meters), wingspan of 40 feet, 11.726 inches (12.490 meters) and overall height (to top of propeller arc) of 15 feet, 0.21 inches (4.577 meters). The outer wing had a dihedral of 8.5° and the leading edges were swept back 4°10′. With its wings folded, the width of the F4U-1 was 17 feet, 0.61 inches (5.197 meters), and gave it a maximum height of 16 feet, 2.3 inches (4.935 meters). When parked, the Corsair’s 13 foot, 4 inch (4.064 meter) propeller had 2 feet, 1.93 inches (65.862 centimeters) ground clearance, but with the fighter’s thrust line level, this decreased to just 9.1 inches (23.1 centimeters). The F4U-1 had an empty weight of 8,982 pounds (4,074.2 kilograms) and gross weight of 12,162 pounds (5,516.6 kilograms).

Major Pappy Boyington with a Vought-Sikorsky F4U-1 Corsair, Bu. No. 17740, at Torokina Airstrip, Bougainville, 1943. (U.S. Navy)

This variant of the Corsair was powered by an air-cooled, supercharged, 2,804.4-cubic-inch-displacement (45.956 liter) Pratt & Whitney Double Wasp SSB2-G (R-2800-8) two-row, 18-cylinder radial engine, with a compression ratio of 6.65:1. The R-2800-8 had a normal power rating of 1,675 horsepower at 2,550 r.p.m. and 44.0 inches of manifold pressure (1.490 bar) at 5,500 feet (1,676 meters), 1,550 horsepower at 21,500 feet (6,553 meters), and 2,000 horsepower at 2,700 r.p.m. with 54.0 inches of manifold pressure (1.829 bar) for takeoff. The engine turned a three-bladed Hamilton Standard Hydromatic constant-speed propeller with a diameter of 13 feet, 4 inches (4.064 meters) through a 2:1 gear reduction. The R-2800-8 was 7 feet, 4.47 inches (2.247 meters) long, 4 feet, 4.50 inches (1.334 meters) in diameter and weighed 2,480 pounds (1,125 kilograms).

The F4U-1 had a cruise speed of 186 miles per hour (299 kilometers per hour) at Sea Level. Its maximum speed at Sea Level was 365 miles per hour (587 kilometers per hour). During flight testing, an F4U-1 reached 431 miles per hour (694 kilometers per hour) at 20,300 feet (6,187 meters) with War Emergency Power. The service ceiling was 38,200 feet (11,643 meters) and its maximum range was 1,510 miles (2,430 kilometers) with full main and outer wing tanks.

The Corsair was armed with six Browning M2 .50-caliber machine guns with 400 rounds of ammunition per gun.

A total of 12,571 Corsairs were manufactured by the Vought-Sikorsky Aircraft Division (F4U-1), Goodyear Aircraft Corporation (FG-1D) and Brewster Aeronautical Corporation (F3A-1). The Corsair served the U.S. Navy and Marine Corps in World War II and the Korean War. Corsairs also served in other countries’ armed forces. Its last known use in combat was in Central America in 1969.

Major Gregory Boyington, USMC, commander VMF-214, boarding Vought F4U-1A Corsair, Bu. No. 17883, at Barakoma Airfield, Vella LaVella Island, 1943. (U.S. Navy)
Major Gregory Boyington, USMC, commander VMF-214, boarding Vought-Sikorsky F4U-1 Corsair, Bu. No. 17883, at Barakoma Airfield, Vella LaVella Island, 1943. (U.S. Navy)

For his service during World War II, Colonel Gregory Boyington, United States Marine Corps, was awarded the Medal of Honor, the Navy Cross, Purple Heart Medal, Presidential Unit Citation with bronze star (two awards), Prisoner of War Medal, American Defense Service Medal with bronze star, American Defense Service Medal with bronze star, American Campaign Medal, Asiatic-Pacific Campaign Medal with silver star, and the World War II Victory Medal.

Gregory Boyington retired from the United States Marine Corps on 1 August 1947 with the rank of Colonel. He died at Fresno, California, 11 January 1988, at the age of 75 years. He is buried at the Arlington National Cemetery.

Major Gregory Boyington, United States Marine Corps Reserve, wearing the Medal of Honor, 5 October 1945. (Defense Visual Information Center)

¹ Boyingtons Corsair is usually identified as a “F4U-1A.” F4U-1A is not an official U.S. Navy designation, but is commonly used to distinguish late production F4U-1 Corsairs with their blown plexiglas canopies and other improvements from the earlier “bird cage” Corsairs.

² The United States Marine Corps History Division biography of Colonel Boyington states that he was “credited with the destruction of 28 Japanese aircraft. . . .

© 2017, Bryan R. Swopes

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