Tag Archives: Fighter Ace

30 August 1952

The left wing attachment points of this Northrop F-89C-30-NO Scorpion, 51-5781, failded during a fly-by at the Inaternational Aviation Exposition, Detroit, Michigan, 30 August 1952. (U.S. Air Force)
The left wing of this Northrop F-89C-30-NO Scorpion, 51-5781, failed during a fly-by at the International Aviation Exposition, Detroit, Michigan, 30 August 1952. (Wikipedia)

30 August 1952: At 4:40 p.m., a tragic accident occurred during a fly-by of two new United States Air Force Northrop F-89C Scorpion all weather interceptors at the International Aviation Exposition at Detroit, Michigan.

Two F-89Cs of the 27th Fighter Interceptor Squadron, 4711th Defense Wing, based at Griffis Air Force Base, Rome, New York, made a low-altitude, high speed pass in full view of 51,000 spectators, including General Hoyt S. Vandenberg, then serving his second term as Chief of Staff, United States Air Force. Suddenly, the left wing of the lead interceptor separated. The tail also broke away and the fighter crashed and exploded. In the resulting fire, the Scorpion’s 20 millimeter cannon shells exploded.

Photograph by B.J. Mullof from The Detroit Free Press, Sunday, 31 August 1952, Vol.122, No. 118, Page 1, Columns 1–3.

Major Donald E. Adams, a fighter ace who had won the Silver Star in Korea just months earlier, was killed, along with Captain Edward F. Kelly, Jr., the radar intercept officer. Five people on the ground were injured by falling wreckage.

The second F-89 was flown by Major John Recher and Captain Thomas Myslicki. They landed immediately at Selfridge Air Force Base.

This was not the first wing failure in an F-89C, nor the last. The Air Force grounded the Scorpions and ordered Northrop to return the airplanes to the factory or to modification centers using the company’s pilots. Northrop engineers began an intensive investigation to discover the cause of these catastrophic failures.

When designing the airplane engineers tried to use materials that provided the greatest strength at the lightest weight. A new aluminum alloy had been used for the wing attachment fittings. This material had properties that weren’t understood at the time, but when subjected to certain types of dynamic loads, it could fatigue and become brittle rapidly. It was also very sensitive to surface imperfections, such as scratches or machining marks, that could rapidly propagate fatigue fractures.

Northrop F-89C-30-NO Scorpion 51-5785, sister ship of Major Adams’ interceptor.

A second problem was that, under certain conditions, the Scorpion’s wings could enter a sequence of rapidly increasing oscillations, actually twisting the wing. This occurred so quickly that a pilot was not likely to see it happening. The twisting motion focused on the wing attachment points, and resulted in a catastrophic failure.

Northrop redesigned the wing to reduce the oscillation, and replaced the aluminum attachment fittings with new ones made of forged steel.

The F-89 was returned to service and became a very reliable airplane.

Pilot and radar intercept officer of a Northrop F-89C Scorpion. (Jet Pilot Overseas)

Major Adams’ Scorpion, Northrop F-89C-30-NO 51-5781, was a two-place, twin-engine, all weather interceptor, designed as a replacement for the World War II-era Northrop P-61 Black Widow night fighter. It was 53 feet, 5 inches (16.281 meters) long with a wingspan of 56 feet (17.069 meters) and overall height of 17 feet, 6 inches (5.334 meters). Its empty weight was 24,570 pounds (11,145 kilograms) and maximum gross weight was 37,348 pounds (16,941 kilograms).

The F-89C was powered by two Allison J35-A-33 afterburning turbojet engines. The J35 was a single-spool, axial-flow turbojet with an 11-stage compressor section, 8 combustion chambers and single-stage turbine. The J35-A-33 was rated at 5,400 pounds of thrust (24.02 kilonewtons) and 7,400 pounds (32.92 kilonewtons) with afterburner.

It had a maximum speed of 650 miles per hour (1,046 kilometers per hour) at Sea Level and 562 miles per hour (905 kilometers per hour) at 40,000 feet (12,192 meters). The service ceiling was 50,500 feet (15,392 meters) and maximum range was 905 miles (1,457 kilometers).

An Air Force master sergeant loading 20mm cannon shells for an F-89’s six 20 mm guns. (LIFE Magazine)

The interceptor was armed with six 20 mm M24 cannon in the nose, and could carry sixteen 5-inch rockets or 3,200 pounds (1,451.5 kilograms) of bombs on hardpoints under its wings.

Northrop Corporation built 1,050 F-89 Scorpions. 164 were F-89Cs. Variants produced after this deleted the six cannon in the nose and used aerial rockets instead. Scorpions served the Air Force and Air National Guard in the air defense role until 1969.

Major Donald E. Adams, United States Air Force. (Imperial War Museum)

Donald Earl Adams was born 23 February 1921 at Canton, New York. He was the first of two sons of Alonzo Deys Adams, a wallpaper and paint salesman, and Mae C. Hurd Adams.

Adams attended Western State Teachers College, Kalamazoo, Michigan. He was a member of the baseball, boxing and wrestling teams.

After graduating from college, Adams enlisted as a private, Enlisted Reserve Corps, at Rochester, New York, 10 October 1942. He was 6 feet, 0 inches (1.83 meters) tall and weighed 155 pounds (70 kilograms). Private Adams was appointed an Aviation Cadet, 18 November 1942.

Miss Mary Ann Lewark, 1942

On 13 February 1943, at Montgomery, Alabama, Adams married Miss Mary Ann Lewark, the 21-year-old daughter of Mr. and Mrs. Glenn W. Lewark, and a graduate of Western Michigan College at Kalamazoo. They would have three children, Donald, Nancy and Steven.

On completion of flight training, Cadet Adams was commissioned as a Second Lieutenant, Army of the United States (A.U.S.), 30 August 1943.

Lieutenant Adams was assigned as a flight instructor until July 1944, when he underwent operational training as a P-51 Mustang fighter pilot.

Second Lieutenant Adams joined the 343rd Fighter Squadron, 55th Fighter Group, at RAF Wormingford (Air Force Station 131), Hertfordshire, in February 1945. He was assigned a North American Aviation P-51D-15-NA Mustang, 44-15372, with squadron markings CY R. He named his fighter Sweet Mary, after his wife. Adams is credited with destroying a Messerschmitt Bf 109 and Me 410 and damaging a second Bf 109, in strafing attacks on the afternoon of 9 April 1945, and a second Bf 109 damaged, 17 April 1945. He was promoted to First Lieutenant, A.U.S., 2 May 1945.

1st Lieutenant Donald Earl Adams, 343rd Fighter Squadron, 55th Fighter Group, 1945. (Imperial War Museum)

On 24 August 1946, Lieutenant Adams was appointed a second lieutenant, Field Artillery, with date of rank to 30 August 1943, his original commissioning date. In November 1946, Lieutenant Adams was assigned to the 307th Fighter Squadron, 31st Fighter Group, on occupation duty at Kitzigen Army Airfield in Bavaria. The 307th was one of the first units to be equipped with the Lockheed P-80A Shooting Star jet fighter. On 1 May 1947, Lieutenant Adams was transferred to the Air Corps.

Returning to the United States in June 1947, Lieutenant Adams was assigned to the 62nd Fighter Squadron, 56th Fighter Group, at Selfridge Air Force Base, near Mount Clemens, Michigan. The squadron flew P-80s and F-86 Sabres.

In October 1951, Major Adams joined the 16th Fighter-Interceptor Squadron, 51st Fighter-Interceptor Group, at Suwon Air Base (K-13), Republic of South Korea, flying the North American Aviation F-86 Sabre.

Silver Star

On 3 May 1952, Adams was leading a flight of six Sabres. He and his flight attacked a group of twenty Chinese MiG 15s. During the battle, he shot down the enemy flight leader and then the deputy flight leader and damaged three more enemy fighters, completely breaking up the enemy flight. He was awarded the Silver Star.

While flying the the 16th, Major Adams was credited with destroying 6½ enemy aircraft in aerial combat, and damaging another 3½. On his twentieth mission, he had just shot down a MiG 15 when he was attacked by four more. The enemy fighters chased Adams out over the Yellow Sea before he could break away. By this time, he was 250 miles (402 kilometers) from base with fuel remaining for just 100 miles (161 kilometers). He said, “I climbed to 45,000 feet [13,716 meters], shut of the engine and glided 150 miles [241 kilometers] before starting up again.”

Adams flew 100 combat missions during the Korean War. He returned to the United States 16 June 1952, and in July, was assigned to the 27th Fighter-Interceptor Squadron, 4711th Defense Wing, Air Defense Command, at Griffis Air Force Base.

In addition to the Silver Star, Major Adams had been awarded the Distinguished Flying Cross, the Air Medal with one silver and two bronze oak leaf clusters (seven awards), the Presidential Unit Citation with one oak leaf cluster (two awards), the American Campaign Medal, European African-Middle Eastern Campaign Medal with three service stars, World War II Victory Medal, Army of Occupation Medal, National Defense Service Medal, Korean Service Medal with three service stars (three campaigns), the Air Force Longevity Service Award with one oak leaf cluster (ten years service), the Republic of Korea Presidential Unit Citation, the United Nations Service Medal for Korea, and the Republic of Korea War Service Medal.

Major Donald Earl Adams, United States Air Force, is buried at the Clinton Grove Cemetery, Mount Clemens, Michigan.

© 2017, Bryan R. Swopes

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7 August 1919

Captain Hoy’s JN-4 Canuck at Minoru Park, Richmond, B.C., prior to departing on his historic flight across the Canadian Rockies, 7 August 1919. (Unattributed)

7 August 1919: Captain Ernest Charles Hoy, DFC, a World War I fighter pilot credited with 13 aerial victories, became the first pilot to fly across the Canadian Rockies when he flew from Richmond, British Columbia, to Calgary, Alberta, carrying the mail for the Post Office Department.

Foy’s airplane was a single-engine Canadian Aeroplanes Ltd.-built JN-4 “Canuck” two-bay biplane, an independent derivative of the Curtiss Aeroplane and Motor Company JN-3 “Jenny,” to the specifications of the Royal Flying Corps. The Canuck had ailerons on upper and lower wings, giving it better roll response than the original Curtiss JN-4. The Canuck was 27 feet, 2½ inches (8.293 meters) long, with an upper wingspan of 43 feet, 7-3/8 inches (13.294 meters) and lower span of 34 feet, 8 inches ( meters). The height was 9 feet, 11 inches (3.023 meters). The empty weight was 1,390 pounds (630 kilograms) and gross weight was 1,930 pounds (875 kilograms).

The Canuck was powered by a water-cooled, normally-aspirated 502.655-cubic-inch-displacement (8.237 liters) Curtiss Aeroplane and Motor Company OX-5 90° V-8 engine with a compression ratio of 4.9:1. This was a direct-drive engine which produced 90 horsepower at 1,400 r.p.m. and turned a two-bladed, fixed-pitch propeller. The OX-5 was 4 feet, 8.75 inches (1.442 meters) long, 2 feet, 5.75 inches (0.756 meters) wide and 3 feet, 0.75 inches (0.932 meters) high. It weighed 390 pounds (177 kilograms).

The Canuck had a cruise speed of 60 miles per hour (97 kilometers per hour) and maximum speed of 74 miles per hour (119 kilometers per hour). Its service ceiling was 11,000 feet (3,353 meters). The standard airplane had a range of 155 miles (249 kilometers). Captain Hoy had an additional 12 gallon (45 liters) fuel tank installed in the airplane’s forward cockpit.

Two Canadian newspapers had agreed to offer a cash prize to the first person to make this flight. Captain Hoy was sponsored by the Aerial League of Canada, which purchased the airplane. Supposedly, Hoy was selected to make the flight by winning a coin toss with another pilot.

Captain Hoy took off from Minoru Park in Richmond at 4:13 a.m., carrying 45 specially marked letters and several special editions of the Vancouver Daily World. He made several fuel stops enroute, flew through several mountain passes and finally landed at Bowness Park in Calgary at 8:55 p.m. His flight took 16 hours, 42 minutes.

Captain Ernest C. Hoy, DFC, hands over the Mail at Calgary, Alberta, 7 August 1919. (Unattributed)

Ernest Charles Hoy was born at Dauphin, Manitoba, 6 May 1895, the son of Charles and Eliza Lavinia Kitchener Hoy.

Ernest Charles Hoy was 5 feet, 9½ inches (1.765 meters) tall, and weighed 165 pounds (75 kilograms). He had black hair and brown eyes. Hoy enlisted as a private in the 102nd Battalion, Canadian Expeditionary Force, 3 March 1915. The unit arrived in France, 12 August 1916, and fought as part of the 11th Infantry Brigade, 4th Canadian Division. He was transferred to the 3rd Pioneer Battalion, Canadian Engineers. After contracting a serious illness, Private Hoy was sent back to England to recuperate. While there, he volunteered for the Royal Flying Corps. He was trained as a pilot and assigned to No. 29 Squadron.

Royal Aircraft Factory S.E.5a D6940 of No. 29 Squadron, Royal Flying Corps, photographed by Flight Lieutenant B.G. Mayner. © Imperial War Museum (Q 69781)

Between 12 August and 27 September 1918, Lieutenant Hoy shot down 13 enemy aircraft (including two balloons) with his Royal Aircraft Factory S.E.5a fighter. After his fourth, Hoy was recommended for the Distinguished Flying Cross. His citation in The London Gazette reads,

Lieut. (A/Capt.) Ernest Charles Hoy.                                                                                                                                    (FRANCE)
     A bold and skillful airman who has accounted for four enemy machines and shot down a balloon in flames, displaying at all times a fine fighting spirit, disregarding adverse odds.

The London Gazette, 3 December 1918, Supplement 31046, Page 14322 at Column 2.

On 26 September 1918, Captain Hoy was shot down by an enemy pilot. He was captured and held as a prisoner of war until the Armistice.

Ernest Charles Hoy, 1939

On 12 July 1922, Captain Hoy married Miss Marjorie Day at Vancouver, British Columbia. They emigrated to the United States in 1924 and resided in Newark, New Jersey. They had two children, Ross Kitchener Hoy, born in 1926, and Jane Elizabeth Hoy, born in 1930.

Captain Hoy became a naturalized citizen of the United States of America on 6 July 1939. He worked as a branch manager for an insurance company.

Captain Ernest Charles Hoy died at Toccoa, Georgia, 22 April 1982, just short of his 87th birthday.

© 2017, Bryan R. Swopes

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