Link to wiki article, note the aircraft itself was not super-sonic:rcgldr said:Some aircraft company made a propeller driven plane where the propeller blades operated at super-sonic speed. Although the pilot was shielded from the shock waves, any personel in the general area were adversely affected by the constant bombardment of shockwaves, so they scrapped the program.
The sound barrier refers to the speed of sound, which is approximately 761 miles per hour at sea level. It is the point at which an object traveling through the air reaches the speed of sound and experiences a sudden increase in drag and shock waves.
Technically, yes, a propeller driven aircraft can break the sound barrier. However, it is extremely difficult and requires a specialized design and engine power. Only a few propeller driven aircraft, such as the Focke-Wulf Fw 190 and the P-51 Mustang, have been able to reach supersonic speeds.
The main challenge for a propeller driven aircraft in breaking the sound barrier is the increase in drag and shock waves. As the aircraft approaches the speed of sound, the propeller tips can reach supersonic speeds, causing shock waves and decreasing efficiency. The aircraft also experiences a sudden increase in drag, making it difficult to maintain speed.
Engineers use advanced aerodynamic designs and materials to reduce drag and increase efficiency. They also use high-performance engines with enough power to overcome the increased drag and maintain supersonic speeds. The propeller blades are also carefully designed and shaped to minimize shock waves and maintain stability.
The main danger of breaking the sound barrier in a propeller driven aircraft is the potential for structural damage. The sudden increase in drag and shock waves can put extreme stress on the aircraft, potentially causing it to break apart. It also requires a high level of skill and training for the pilot to control the aircraft at such high speeds.