FYI -                                                   
The United States' first rocket-powered airplane was the Bell X-1, a groundbreaking aircraft developed in the 1940s. Here’s an overview:

Bell X-1
Purpose: The Bell X-1 was designed to explore the transonic and supersonic flight regimes, which were poorly understood at the time due to the challenges of the "sound barrier."
First Flight: It made its first powered flight on December 9, 1946, and achieved its most famous milestone on October 14, 1947, when it became the first airplane to fly faster than the speed of sound in level flight.
Pilot: Captain Chuck Yeager, a U.S. Air Force test pilot, flew the X-1 on its historic supersonic flight, reaching a speed of Mach 1.06 (about 700 mph) at an altitude of 43,000 feet.
Engine: The X-1 was powered by a Reaction Motors XLR11 rocket engine, which used liquid oxygen and alcohol as propellants.
Design: The aircraft had a bullet-like shape inspired by the .50 caliber bullet, known for its stability at high speeds. Its wings were thin and straight, designed to minimize aerodynamic drag.
Legacy
The success of the Bell X-1 opened the door to further advancements in aerospace technology, leading to the development of more advanced experimental aircraft and, eventually, the space program. It demonstrated that controlled supersonic flight was possible and provided crucial data on aerodynamics and engineering at high speeds.
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