Tyler Wynn
The German V-2 ballistic missile became the first vehicle to break the sound barrier on October 3, 1942. However, there is a dispute over whether German pilot Hans Guido Mutke broke the sound barrier in a Messerschmitt Me 262 on April 9, 1945. Mutke claimed that he was flying at 684 mph when his speedometer froze, and his aircraft began to shake violently, with rivets flying out of the wings. However, there is a lack of accurate data to support this claim, and mainstream opinion continues to regard Chuck Yeager as the first person to break the sound barrier in 1947.
| Characteristics | Values |
|---|---|
| Date Germany broke the sound barrier | 9 April 1945 |
| Name of the pilot | Hans Guido Mutke |
| Aircraft used | Messerschmitt Me 262 |
| Speed | 684 mph |
| Mach | 0.8 |
| Country that first broke the sound barrier | United States |
| Name of the first pilot to break the sound barrier | Chuck Yeager |
| Date the sound barrier was first broken | 14 October 1947 |
| Aircraft used to first break the sound barrier | Bell X-1 |
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What You'll Learn
- German pilot Hans Guido Mutke broke the sound barrier in 1945
- Mutke flew a Messerschmitt Me 262
- The aircraft experienced strange behaviour, with rivets flying out of its wings
- Mutke's claim is disputed, with Chuck Yeager regarded as the first in 1947
- The German V-2 ballistic missile broke the sound barrier in 1942
German pilot Hans Guido Mutke broke the sound barrier in 1945
German fighter pilot Hans Guido Mutke claimed to have broken the sound barrier in 1945 while flying a Messerschmitt Me 262 fighter jet over Austria. On April 9, 1945, Mutke attempted to assist a fellow pilot under Allied fire by diving at a sharp angle, but he lost control of his aircraft as it started to vibrate violently and the controls ceased to function. When he regained control, the speedometer was stuck at 1,100 km/h, indicating that he may have exceeded the speed of sound.
Mutke's claim is disputed, and there are several doubts about the accuracy of his story. Aviation experts have pointed out discrepancies in his account, including his flight altitude, speed of dive, and distance from the other German pilot he intended to save. Additionally, there are other pilots and countries that claim the first supersonic flight. Furthermore, it is believed that the Me 262 aircraft was not capable of reaching supersonic speeds due to its underpowered engines and high transonic drag.
However, some evidence supports Mutke's claim. American test pilots reported the possibility of the Me 262 achieving Mach 1 speeds. Additionally, engineers building replicas of the aircraft in the United States believe Mutke's story could be true. Computer simulations conducted by Professor Otto Wagner of the Munich Technical University also concluded that the plane may have been able to fly faster than sound, although accurate data is lacking.
Mutke never claimed to be the first person to break the sound barrier. Instead, he argued that his experience proved that the Me 262 could exceed Mach 1, suggesting that other German pilots may have also broken the sound barrier before him. Mutke's claim highlights the ongoing debate about aviation achievements during World War II and the impact of technological limitations on speed calculations.
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Mutke flew a Messerschmitt Me 262
On 9 April 1945, Luftwaffe pilot Fähnrich Hans Guido Mutke flew a Messerschmitt Me 262, marked Weiße 9, for a planned high-altitude flight. Mutke claimed that he got lost during a combat mission and accidentally landed in Switzerland. However, there were suspicions that he had defected. The Swiss authorities confiscated the plane and kept it in storage until 1957 when they returned it to Germany. Mutke sued the post-war German government for the return of the plane, but he was unsuccessful.
Mutke also made the controversial claim that he broke the sound barrier in 1945 in an Me 262. He believed that he flew faster than sound in the Messerschmitt Me 262 on April 9, 1945, but most observers seem to think he didn't exceed the speed of sound. Mutke's airspeed indicator was designed for a maximum reading of 1,100 kilometers per hour (684 miles per hour), and the needle was jammed up against that maximum number. However, it is possible that his velocity readings were erroneous due to compressibility in the pitot tube, resulting in a higher-than-actual airspeed reading.
After the war, Mutke moved to Argentina, where he flew Douglas DC-3s for several airlines. He later returned to Germany and completed medical training. He became a gynecologist, aviation doctor, and authority on space medicine. He died in Munich in 2004 during a heart valve operation.
The Messerschmitt Me 262, nicknamed Schwalbe ("Swallow") in fighter versions and Sturmvogel ("Storm Bird") in fighter-bomber versions, was the world's first operational jet-powered fighter aircraft. It was designed and produced by the German aircraft manufacturer Messerschmitt. The design of the Me 262 started in April 1939, before World War II, and it made its maiden flight on 18 April 1941 with a piston engine. Its first jet-powered flight was on 18 July 1942. The Me 262 was one of two jet fighter aircraft types to see air-to-air combat in World War II, the other being the Heinkel He 162.
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The aircraft experienced strange behaviour, with rivets flying out of its wings
The claim that German pilots broke the sound barrier before American test pilot Chuck Yeager in 1947 is disputed. However, German pilot Hans Guido Mutke has stated that he broke the sound barrier in 1945 while flying a Messerschmitt Me 262. Mutke claimed that he was flying at 36,000 feet when he was informed that a fellow pilot was under attack. He immediately dived towards the dogfight under full power. The speedometer remained frozen in the red area at about 684 mph, and the aircraft entered a shaking phase. Mutke described the unusual behaviour of the aircraft: "The rivets started to fly out of the wings. The plane rocked and vibrated and I smashed my head on the roof of the cockpit".
Mutke's claim is supported by extensive testing conducted by German scientists, which revealed that a series of Me 262 crashes were caused by the planes breaking up as they approached the sound barrier. The research found that issues began at Mach 0.85, indicating that some pilots who perished had likely exceeded Mach 1. Allied fighter pilots also reported witnessing supersonic shock waves and popped rivets during dives, even though their overall forward airspeed was below supersonic levels.
However, there is scepticism surrounding Mutke's claim, and the first confirmed and recognised breaking of the sound barrier is attributed to Chuck Yeager in 1947. Mutke himself acknowledged that he may not have exceeded the speed of sound, but instead proposed that his experience was due to approaching Mach 1. Furthermore, American test pilots reported on the Me 262, noting the possibility of achieving Mach 1, but also acknowledging the inaccurate speed readings of German equipment during that time.
While the claim of Mutke breaking the sound barrier remains disputed, it highlights the advancements in aviation technology during World War II and the pursuit of supersonic flight by multiple countries. The Me 262 aircraft played a significant role in these endeavours, and its performance characteristics continue to be a subject of investigation and debate within the aviation community.
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Mutke's claim is disputed, with Chuck Yeager regarded as the first in 1947
German pilot Hans Guido Mutke claimed to have broken the sound barrier in an Me 262 on 9 April 1945. Mutke reported that his aircraft experienced violent shaking, and he felt buffeting as the plane rocked and vibrated. He claimed to have seen rivets flying out of the wings.
Mutke's claim is disputed, with American test pilot Chuck Yeager regarded as the first person to break the sound barrier in 1947. Yeager demonstrated that safe flight at the speed of sound was achievable in purpose-designed aircraft. However, there are several other pilots and countries that claim the first supersonic flight. For example, Mano Ziegler, a former Messerschmitt Me 163 Komet pilot, claimed that his friend, test pilot Heini Dittmar, broke the sound barrier on 6 July 1944. There is also anecdotal evidence that American pilot George Welch may have broken the sound barrier two weeks before Yeager.
In 1999, Mutke enlisted the help of Professor Otto Wagner of the Munich Technical University to run computational tests to determine whether his aircraft could break the sound barrier. Wagner stated that Mutke may have been just below the speed of sound and felt the buffeting without exceeding Mach 1. Mutke never claimed he was the first person to break the sound barrier but argued that his flight proved that the Me 262 was capable of reaching and exceeding Mach 1.
While Germany challenges the United States' claim as the first country to break the sound barrier, Mutke's claim remains disputed. Yeager's achievement was carefully documented with precision instruments, and he is recognised as the first confirmed and undisputed person to break the sound barrier in level flight.
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The German V-2 ballistic missile broke the sound barrier in 1942
The V-2 missile, developed and used by the Germans during World War II, was the world's first large-scale liquid-propellant rocket vehicle, the first long-range guided ballistic missile, and the forerunner of modern space rockets and long-range missiles. The missile was powered by a liquid-propellant rocket engine and was assigned to attack Allied cities as retaliation for the bombings of German cities.
On October 3, 1942, the German V-2 ballistic missile broke the sound barrier for the first time. This marked a new era in transportation and space travel. The V-2 missile was first successfully launched on this day, and it was also fired against Paris on September 6, 1944. The missile had a maximum range of about 320 km (200 miles) and a one-ton warhead. It was 14 meters (47 feet) long and weighed 12,700-13,200 kg (28,000-29,000 pounds) at launch, developing around 60,000 pounds of thrust.
The V-2 missile was developed through the efforts of scientists led by Wernher von Braun, beginning in 1936. By 1942, the workforce at the Peenemünde-East research facility, where the missile was developed, had grown to about 5,000, including engineers, technicians, scientists, and construction workers. The V-2 missile was first deployed as a weapon in November 1944, with more than 3,000 V-2s launched by the Wehrmacht against Allied targets, including London, Antwerp, and Liège.
The German V-2 ballistic missile routinely broke the sound barrier in flight after its first successful launch in 1942. By September 1944, V-2s routinely achieved Mach 4 (1,200 m/s or 3,044 mph) during terminal descent. The breaking of the sound barrier by the V-2 missile influenced the development of intercontinental ballistic missiles during the Cold War and the design of aircraft capable of breaking the sound barrier.
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Frequently asked questions
German pilot Hans Guido Mutke claimed that he broke the sound barrier on April 9, 1945, in a Messerschmitt Me 262. However, mainstream opinion continues to regard Chuck Yeager as the first person to achieve this feat in 1947.
The speed of sound refers to how fast a sound wave moves through a medium like air, water, or any other substance. In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s). Breaking the sound barrier means moving faster than the speed of sound.
There are several disputed claims of people breaking the sound barrier before Mutke. One claim suggests that German pilot Lothar Sieber broke the speed of sound during his fatal test flight of the rocket-powered Bachem Natter on March 1, 1945. There is also anecdotal evidence that American pilot George Welch may have broken the sound barrier two weeks before Yeager.
