11 November 1937: At Augsburg, Germany, Dr.-Ing. Hermann Wurster set a Fédération Aéronautique Internationale (FAI) World Record for Speed Over a 3 Kilometer Course when he flew a prototype Bayerische Flugzeugwerke AG Bf 109, D-IPKY, to an average speed of 610.95 kilometers per hour (379.63 miles per hour) in four passes over a 3-kilometer course.¹ This broke the speed record set two years earlier by Howard Hughes with his Hughes H-1 Special, NR258Y, by 43.83 kilometers per hour (27.23 miles per hour).²
Versuchsflugzeug 13, the BFW Bf 109 V13, Werk-Nr. 1050 (FAI records describe it as a Messerchmitt BF113, and contemporary news reports referred to it as the Messerschmitt BF 113R), was one of four prototypes built from production Junkers Jumo 210-powered Bf 109B airframes to test the Daimler-Benz AG DB 600 engine. It was given a civil registration, D-IPKY. Along with two Bf 109B fighters, V13 was part of an aerial demonstration team which was sent to the International Flying Meeting at Dübendorf, Switzerland, during the last week of July 1937. It was equipped with a Daimler-Benz DB 600 rated at 960 horsepower.
On its return from Switzerland, V13 was prepared for a speed record attempt. It was given a standard drag reduction for racing airplanes, with all its seams filled and sanded smooth, and a coat of paint. A modified version of the DB 601 engine was installed, reportedly capable of producing 1,660 horsepower for five minutes, with its maximum r.p.m increased from 2,500 to 2,800. It used special Bosch spark plugs. A three-bladed variable-pitch propeller was driven through gear reduction, although the gear ratio is unknown.
Like the Jumo 210, the Daimler-Benz 601 was a liquid-cooled, supercharged, single overhead cam, inverted 60° V-12, though with a much larger displacement. The DB 601 had a displacement of 33.929 liters (2,070.475 cubic inches). An improvement of the DB 600, the 601 series used direct fuel injection rather than a carburetor, and a hydraulically-driven two-speed supercharger.
A production Daimler-Benz DB 601 A had a compression ratio of 6.9:1 and was rated at 1,050 horsepower at 2,400 r.p.m. at 5.2 inches of pounds per square inch (0.36 Bar) of boost, for take-off (1 minute limit). It could produce 970 horsepower at 2,300 r.p.m. with 2.4 pounds per square inch (0.17 Bar) of boost at 12,000 feet (3,658 meters). Its propeller gear reduction ratio was 14:9. The DB 601 A was 67.5 inches (1.715 meters) long, 29.1 inches (0.739 meters) wide, and 40.5 inches (1.029 meters) high. It weighed 1,610 pounds (730.3 kilograms).
The Bf 109D production variant was developed from V13.
In 1938, BFW became Messerschmitt AG. The Bf 109 (also commonly called the Me 109) was produced from 1937 to 1945. Total production was 33,894 aircraft, which amounted to 57% of total fighter production for Germany. Seven plants produced the 109 during World War II. After the war ended, Czechoslovakia produced a variant until 1948. Another Spanish-built variant, the Hispano Aviación HA-1112, remained in production until 1958.
Herman Wurster was born at Stuttgart, Germany, 25 September 1907. In 1926, he began studying aircraft at Königlich Bayerische Technische Hochschule München (TH Munich) and at TH Stuttgart (the Stuttgart Technology Institute of Applied Sciences). He earned a doctorate in engineering (Dr.-Ing.) in 1933. He then became the chief designer for the German Research Institute for Aviation (Deutschen Versuchsanstalt für Luftfahrt) in Berlin.
In 1935 and 1936, Dr.-Ing. Wurster was a test pilot for the Luftwaffe‘s testing site at Rechlin, Mecklenburg, Germany. From 1936 until 1943, he was the chief test pilot for Bayerische Flugzeugwerk and Messerschmitt at Augsburg. From 1943 until the end of the war, Wurster was responsible for the development of Messerschmitt’s rocket-powered surface-to-air guided missile, the Enzian E.1 and its variants.
After the war, Dr.-Ing. Wurster founded a building materials company at Nördlingen, Bavaria. He died in Augsburg 17 October 1985 at the age of 78 years.
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.
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.
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.
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).
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.
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.
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.
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.
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.
17 August 1943: Mission No. 84. One year after the Eighth Air Force first attacked occupied Europe with its B-17 Flying Fortress four-engine heavy bombers, a mass attack of 376 B-17s attacked the Messerschmitt Bf-109 factory at Regensburg, Germany, and the ball bearing factories at Schweinfurt.
Over Germany for over two hours without fighter escort, 60 bombers were shot down and as many as 95, though they made it to bases in Allied territory, were so badly damaged that they never flew again. 55 air crews (552 men) were listed as missing in action.
Of the 146 B-17s of the 4th Bombardment Wing which attacked Regensburg, 126 dropped their bombs, totaling 298.75 tons (271.02 Metric tons), destroying the factory and seriously slowing the production of the Messerschmitt Bf 109 fighter. After the attack, the 4th Bomb Wing headed for bases in North Africa. 122 B-17s landed there, half of them damaged.
The 1st Bombardment Wing (Heavy) sent 230 B-17s to Schweinfurt. Weather delays caused the planned diversion of two separate attacks to be unsuccessful. Cloud buildup over the Continent forced the bombers to fly at 17,000 feet (5,182 meters), nearly 10,000 feet (3,048 meters) lower than planned, increasing their vulnerability. Just 183 bombers made it to the target and dropped 424.3 tons (383.9 Metric tons) on the five factories in the target area. Then they headed back to their bases in England, under fighter attack most of the way. The 1st Bombardment Wing lost 36 bombers.
Though the raid did cut production of ball bearings as much as 34%, the losses were quickly made up from stockpiles. The two attacking forces succeeded in shooting down 25–27 German fighters.
14 July 1922: Brigadier General Robin Olds, United States Air Force, was a fighter pilot and triple ace with 17 official aerial victories in two wars. Robin Olds was born Robert Oldys, Jr., at Luke Field Hospital, Honolulu, Territory of Hawaii. He was the first son of Captain Robert Oldys, Air Service, United States Army, and Eloise Wichman Nott Oldys. In 1931, the family name was legally changed from Oldys to Olds. As a child, Robert, Jr., was known as “Robin,” a dimunuitive of Robert.
Robin Olds entered the United States Military Academy at West Point, New York, on 1 July 1940. During the summer months, he received primary, basic and advanced pilot training. With training at West Point accelerated because of wartime needs, Cadet Olds and his class graduated one year early, 1 June 1943. Olds was commissioned a Second Lieutenant, Air Corps, United States Army, (number 589 of 620 on the Air Corps list of second lieutenants), and was assigned to fighter training in the Lockheed P-38 Lightning at Williams Field, Arizona. On 1 December 1943, Second Lieutenant Olds was appointed to the rank of First Lieutenant, Army of the United States (A.U.S.). (His permanent rank remained Second Lieutenant, Air Corps, until after the War.)
On completion of all phases of training, Lieutenant Olds was assigned to the 434th Fighter Squadron, 479th Fighter Group, and deployed to England aboard the former Moore-McCormack Lines passenger liner S.S. Argentina, which had been converted to a troop transport.
The 434th Fighter Squadron was based at RAF Wattisham in East Anglia. First Lieutenant Olds was promoted to Captain (A.U.S.) on 24 July 1944. He became an ace during his first two combat missions, shooting down 2 Focke-Wulf Fw 190 fighters on 14 August 1944 and 3 Messerschmitt Bf 109s on August 23.
The squadron re-equipped with North American P-51 Mustangs and Captain Olds continued to destroy enemy fighters. On 9 February 1945, just 22 years old, he was promoted to Major. On 25 March 1945, Major Olds was placed in command of the 434th Fighter Squadron. Major Olds completed the war with a record of 13 aerial victories,¹ and another 11.5 enemy aircraft destroyed on the ground. He had flown 107 combat missions.
When the United States Air Force was established as a separate military service on 18 September 1947, Major Olds (along with hundreds, if not thousands of other officers) reverted to their permanent rank of First Lieutenant, with his date of rank retroactive to 1 June 1946. Olds retained the temporary rank of Major.
After World War II, Major Olds transitioned to jet fighters with the Lockheed P-80A Shooting Star at March Field, near Riverside, California. He flew in an aerobatic demonstration team, and on 1 September 1946, flew a Lockheed P-80A to second place in the Thompson Trophy Race, Jet Division, at Cleveland, Ohio. Olds averaged 514.715 miles per hour (828.354 kilometers per hour) over ten laps around the 30-mile (48.3 kilometers), four pylon course.
While stationed at March Field, Olds met his future wife, actress Ella Wallace Raines (formerly, Mrs. Kenneth William Trout). They married on 6 February 1947 at the West Hollywood Community Church, just south of the Sunset Strip in the West Hollywood area of Los Angeles County, California. Rev. Gordon C. Chapman performed the ceremony. They would have two daughters, Christina and Susan. They divorced 15 November 1976.
In October 1948, Major Olds returned to England as an exchange officer in command of No. 1 Squadron, Royal Air Force, at RAF Tangmere. He was the first non-Commonwealth officer to command a Royal Air Force squadron. The squadron flew the Gloster Meteor F. Mk.IV jet fighter.
Following the tour with the R.A.F., Olds returned to March Air Force Base as operations officer of the 94th Fighter Squadron, Jet, 1st Fighter-Interceptor Group, which had been equipped with the North American Aviation F-86A-1-NA Sabre. Soon after, he was placed in command of the 71st Fighter-Interceptor Squadron, another squadron within the 1st Fighter-Interceptor Group.
Olds was promoted to the rank of lieutenant colonel, 20 February 1951, and to colonel 15 April 1953. From 8 October 1955 to 10 August 1956 he commanded the 86th Fighter-Interceptor Group based at Landstuhl Air Base, Germany. The group flew the rocket-armed North American Aviation F-86D Sabre. The 86th was inactivated 10 August 1956. Colonel Olds then was assigned as chief of the Weapons Proficiency Center for the United States Air Forces in Europe (USAFE) at Wheelus Air Base, near Tripoli, Libya.
After assignment as Deputy Chief, Air Defense Division, Headquarters USAF, from 1958 to 1962, Colonel Olds attended the National War College, graduating in 1963. From 8 September 1963 to 26 July 1965, Colonel Olds commanded the 81st Tactical Fighter Wing, at RAF Bentwaters, England.
Robin Olds returned to combat as commander of the 8th Tactical Fighter Wing at Ubon Royal Thai Air Force Base, Thailand, in September 1966. Flying the McDonnell F-4C Phantom II, Colonel Olds scored victories over two Vietnam Peoples Air Force Mikoyan-Gurevich MiG-17s and two MiG-21s, bringing his official score to 17 ² aerial victories. ³ He was the only Air Force fighter ace with victories in both World War II and the Vietnam War. (There have been rumors that he actually shot down seven MiGs, but credited those to other pilots to avoid being pulled out of combat and sent back to the United States.)
For his actions during the attack against the Paul Doumer Bridge, 11 August 1967, Colonel Olds was awarded the Air Force Cross. He flew 152 combat missions during the Vietnam War. His final combat mission was on 23 September 1967.
On 1 June 1968, Robin Olds was promoted to the rank of brigadier general and assigned as Commandant of Cadets at the United States Air Force Academy. In February 1971, he was appointed Director of Aerospace Safety in the Office of the Inspector General at Norton Air Force Base, near San Bernardino, California. He retired from the Air Force 31 May 1973.
During his military career, Brigadier General Robin Olds had been awarded the Air Force Cross, Distinguished Service Medal, Silver Star with three oak leaf clusters (four awards), Legion of Merit, Distinguished Flying Cross with five oak leaf clusters (six awards), Air Medal with 39 oak leaf clusters (40 awards), Air Force Commendation Medal, as well as the Distinguished Flying Cross of the United Kingdom, the Croix de Guerre (France), and the Republic of Vietnam’s Distinguished Service Medal, Air Gallantry Medal with Gold Wings, Air Service Medal and Vietnam Campaign Medal.
In 1978, Robin Olds married his second wife, Abigail Morgan Sellers Barnett. They were divorced in 1993.
Brigadier General Robin Olds passed away 14 June 2007 at the age of 84 years. He is buried at the United States Air Force Academy Cemetery, Colorado Springs, Colorado.
Note: Thanks to Ms. Christina Olds and Lieutenant Colonel R. Medley Gatewood, U.S. Air Force (Retired), for correcting a number of errors in the previous version of this article.
¹ Source: Air Force News Agency
³ Under the rules in effect at the time, a pilot and WSO shared credit for an enemy aircraft destroyed, with each being credited 0.5 kills. Colonel Olds was officially credited with 2.0 kills. The rules were changed in 1971, retroactive to 1965. This gave Olds an official score of 4.0. —Source: To Hanoi and Back: The United States Air Force and North Vietnam 1966–1973, by Wayne Thompson. Air Force History Office, 2000. Chapter 4 at Page 11.
Before Germany could mount Operation Sea Lion, a cross-channel invasion of the British Isles, it needed to have complete air superiority over the invasion fleet. Because of the Luftwaffe‘s greater numbers and modern aircraft, German military leadership believed this could best be accomplished by defeating the Royal Air Force in air-to-air combat.
The Royal Air Force had been conserving their limited numbers of pilots and aircraft up to this point in the war. Germany’s plan was to send its bombers against targets that the R.A.F. would be forced to defend. The escorting Messerschmitt Bf 109s (also referred to as Me 109) would then shoot down the Boulton Paul Defiants and Bristol Blenheims. But the Hawker Hurricanes and Supermarine Spitfires were up to the task. While the Hurricanes went after the Luftwaffe’s Dornier 17 and Heinkel He 111 bombers, the Spitfires engaged their Bf 109 fighter escorts.
Britain used a system of radar-directed ground control of its fighter squadrons. The result was that, although both sides lost about the same number of aircraft, the Battle of Britain was a decisive victory for Great Britain. Germany was forced to give up on its plans for an invasion of England.
During a speech the House of Commons, 20 August 1940, Prime Minister Winston Churchill referred to the pilots of Fighter Command when he said,
“The gratitude of every home in our Island, in our Empire, and indeed throughout the world, except in the abodes of the guilty, goes out to the British airmen who, undaunted by odds, unwearied in their constant challenge and mortal danger, are turning the tide of the world war by their prowess and by their devotion. Never in the field of human conflict was so much owed by so many to so few.”
Ever since, the Royal Air Force has been known as “The Few.”
Royal Air Force aircraft:
Highly recommended:Duel of Eagles, by Group Captain Peter Townsend, CVO, DSO, DFC and Bar, Royal Air Force. Cassell Publishers Limited, 1970 and Castle Books, 2003.