Tag Archives: Messerschmitt Aktiengesellschaft

26 April 1939

Messerschmitt Me 209 V1 D-INJR. (NASM)

26 April 1939: Test pilot Fritz Wendel flew a prototype Messerschmitt Me 209 V1, registered D-INJR, over a three-kilometer course at Augsburg, Germany, setting a new Fédération Aéronautique Internationale (FAI) world record with an average speed of 755.14 kilometers per hour (469.22 miles per hour). ¹ Wendel’s record broke one set just three weeks earlier by Hans Dieterle in a prototype Heinkel He 100 fighter. ² The new record would stand for the next 30 years.

Willy Messerschmitt congratulates test pilot Fritz Wendel. (NASM)

The Me 209 V1 (also known as the Me 109 R) was specially built as a speed record airplane. It used a very short fuselage with the cockpit well aft of the wing. A small ventral fin gave the airplane’s tail surfaces a cruciform configuration. To reduce aerodynamic drag, a conventional radiator was not used. Instead, surface coolers of the type used in Schneider Cup racers were placed on the wings.

Messerschmitt Me 209 V1. Compare this airplane to the prototype Bf 109 V1, below.
BKW Bf 109 VI D-IABI prototype, left profile. (National Air and Space Museum)

The Me 209 was powered by a Daimler-Benz DB 601ARJ, a highly-modified version of the DB 601A. The production engine was a liquid-cooled, direct-injected and supercharged 33.929 liter (2,075.497-cubic-inches), inverted single-“underhead”-camshaft 60° V-12 engine with four valves per cylinder and a compression ratio of 6.9:1. The supercharger was driven hydraulically. The engine was rated at 970 horsepower at 2,300 r.p.m. at 12,000 feet (3,658 meters), and 1,050 horsepower at 2,400 r.p.m. for takeoff (limited by a clockwork mechanism to 1 minute), using 87-octane gasoline. The propeller reduction gear ratio was 14:9. The DB 601A was 67.5 inches (1.715 meters) long, 40.5 inches (1.029 meters) high and 29.1 inches (0.739 meters) wide. It weighed 1,610 pounds (730.3 kilograms).

Various sources give the power output of the DB 601ARJ as 1,800 horsepower at 3,000 r.p.m., and 2,300 horsepower with methyl alcohol injection, for very short periods.

Fuselage of the Me 209 V1 at Muzeum Lotwnictwa Polskiego w Krakowie.

The fuselage of the Me 209 V1 is in the collection of the Muzeum Lotwnictwa Polskiego w Krakowie (Polish Aviation Museum at Krakow, Poland).

¹ FAI Record File Number 8743

² FAI Record File Number 8744

© 2019, Bryan R. Swopes

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31 March 1945

Messerschmitt Me 262 A-1 WNr. 111711 (U.S. Air Force photograph)
Messerschmitt Me 262 A-1 WNr. 111711 (U.S. Air Force)

31 March 1945: Messerschmitt Aktiengesellschaft test pilot and technical inspector Hans Fay (1888–1959) defected to the Allies at Frankfurt/Rhein-Main Airfield, Frankfurt, Germany.

He brought with him a brand-new Messerschmitt Me 262 A-1 twin-engine jet fighter.

Fay had been waiting for an opportunity to bring an Me 262 to the Americans, but feared reprisals against his parents. When he learned that the U.S. Army controlled their town, he felt that it was safe to go ahead with his plan.

On 31 March, Fay was ordered to fly one of twenty-two new fighters from the Me 262 assembly factory at Schwäbisch-Hall to a safer location at Neuburg an der Donau, as they were in danger of being captured by advancing Allied forces. His airplane was unpainted other than low visibility Balkenkreuz markings on the wings and fuselage, and standard Luftwaffe markings on the vertical fin. Fay was the fourth to take off, but instead of heading east-southeast toward Neuburg, he flew north-northwest to Frankfurt, arriving there at 1:45 p.m.

Hans Fay’s Messerschmitt Me 262 A-1 at Frankfurt Airfield. (U.S. Air Force)

The Messerchmitt Me 262 Schwalbe was the first production jet fighter. It was a single-place, twin-engine airplane with the engines placed in nacelles under the wings. It was 34 feet, 9 inches (10.592 meters) long with a wingspan of 40 feet, 11½ inches (12.484 meters) and overall height of 11 feet, 4 inches (3.454 meters). According to Fay, the fighter’s empty weight was 3,760 kilograms (8,289 pounds) and the maximum gross weight was 7,100 kilograms (15,653 pounds) at engine start.¹

The Me-262 wings had 6° dihedral. The leading edges were swept aft to 20°, while the trailing edges of the inner panels swept forward 8½° to the engine nacelle, then outboard of the engines, aft 5°. The purpose of the sweep was to keep the airplane’s aerodynamic center close to the center of gravity, a technique first applied to the Douglas DC-2.

Messerschmitt Me 262A-1 WNr. 111711 at Frankfurt Airfield. (U.S. Air Force)

The Me 262 A-1 was powered by two Junkers Jumo TL 109.004 B-1 turbojet engines. The 004 was an axial-flow turbojet with an 8-stage compressor section, six combustion chambers, and single-stage turbine. The 004 engine case was made of magnesium for light weight, but this made it vulnerable to engine fires. The engine was designed to run on diesel fuel, but could also burn gasoline or, more commonly, a synthetic fuel produced from coal, called J2. The engine was first run in 1940, but was not ready for production until 1944. An estimated 8,000 engines were built. The 004 B-1 idled at 3,800 r.p.m., and produced 1,984 pounds of thrust (8.825 kilonewtons) at 8,700 r.p.m. The engine was 2 feet,  inches (0.864 meters) in diameter, 12 feet, 8 inches (3.861 meters) long, and weighed 1,669 pounds (757 kilograms).

24 March 1946: Jumo 004 was tested at the NACA Aircraft Engine research Laboratory, Cleveland, Ohio. (NASA)
24 March 1946: The Jumo 004 was tested at the NACA Aircraft Engine Research Laboratory, Cleveland, Ohio. The axial-flow compressor section is visible. (NASA)

During interrogation, Hans Fay said that for acceptance, the production Me 262 was required to maintain a minimum of 830 kilometers per hour (515 miles per hour) in level flight, and 950 kilometers per hour (590 miles per hour) in a 30° dive. The fighter’s cruise speed was 750 kilometers per hour (466 miles per hour).

A number of factors influenced the Me 262’s maximum range, but Fay estimated that the maximum endurance was 1 hour, 30 minutes. U.S. Air Force testing establish the range as 650 miles (1,046 kilometers) and service ceiling at 38,000 feet (11,582 meters).

Lieutenant Walter J. McAuley, Jr.
Lt. Walter J. McAuley, Jr.

It was armed with four 30 mm Rheinmetall-Borsig MK 108 autocannons with a total of 360 rounds of ammunition. It could also be armed with twenty-four  R4M Orkan 55 mm air-to-air rockets. Two bomb racks under the wings could each be loaded with a 500 kilogram (1,102 pounds) bomb.

1,430 Me 262s were produced. They entered service during the summer of 1944. Luftwaffe pilots claimed 542 Allied airplanes shot down with the Me 262.

Hans Fay’s Messerschmitt Me 262 A-1, WNr. 111711, was transported to the United States and was tested at Wright Field, Dayton, Ohio.

711 was lost during a test flight, 20 August 1946, when one of its engines caught fire. The test pilot, Lieutenant Walter J. “Mac” McAuley, Jr., U.S. Army Air Corps, safely bailed out. The Me 262 crashed 2 miles (3.2 kilometers) east of Lumberton, Ohio, and was completely destroyed.

Messerschmitt Me 262A-1 Schwalbe WNr. 111711. (U.S. Air Force)
Messerschmitt Me 262A-1 Schwalbe WNr. 111711. (U.S. Air Force)
Messerschmitt Me 262A-1 WNr. 111711 at Wright Field. (U.S. Air Force)

¹ A technical report from RAE Farnborough gave the empty weight of the Me 262 as 11,120 pounds ( kilograms). Its “all up weight,” less ammunition, was 14,730 pounds ( kilograms).

© 2019, Bryan R. Swopes

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