Regan Brown
On May 5, 1961, astronaut Alan Shepard piloted the Freedom 7 spacecraft, becoming the first American in space. The Mercury-Redstone 3 MR-3 was the first crewed flight of Project Mercury and the first United States human spaceflight. The Redstone rocket was powered by a single liquid-fueled NAA 75-110-A7 rocket engine, burning ethyl alcohol with liquid oxygen. The total MR-3 vehicle launch weight was 66,098 pounds (29,982 kilograms).
| Characteristics | Values |
|---|---|
| Rocket Fuel | Ethyl Alcohol with Liquid Oxygen |
| Engine | NAA 75-110-A7 |
| Thrust at Sea Level | 78,860 pounds (350.79 kilonewtons) |
| Thrust in Vacuum | 89,000 pounds (395.89 kilonewtons) |
| Total Vehicle Height | 83.38 feet (25.414 meters) |
| Total Launch Weight | 66,098 pounds (29,982 kilograms) |
| Launch Date | May 5, 1961 |
| Launch Time | 10:34:13.48 a.m. EDT |
| Astronaut | Alan Bartlett Shepard, Jr. |
| Mission Type | Suborbital |
| Mission Duration | 15 minutes, 22 seconds |
| Maximum Speed | 5,180 mph (8,340 km/h) |
| Maximum Altitude | 116.5 miles (187.5 km) |
| Downrange Distance | 263.1 nautical miles (302.8 statute miles/<486 km>) |
| Landing Coordinates | 27°14′N 75°53′W / 27.23°N 75.88°W |
| Landing Speed | 38 kilometers per hour |
Explore related products
$32.99
What You'll Learn
The Freedom 7 rocket used ethyl alcohol fuel
The Freedom 7 rocket, also known as the Mercury-Redstone 3, was the first crewed flight of Project Mercury. It was piloted by astronaut Alan Shepard, who named the rocket himself. The Freedom 7 rocket used ethyl alcohol fuel, burning it with liquid oxygen. This was a change from the previous rocket fuel, hydrazine. The rocket was lengthened to provide greater fuel capacity and a pressurized instrumentation section was added. The cylindrical booster was 59 feet (17.98 meters) long and 5 feet, 10 inches (1.78 meters) in diameter.
The Freedom 7 rocket was powered by a single liquid-fueled NAA 75-110-A7 rocket engine, built by the Rocketdyne Division of North American Aviation, Inc. The engine produced 78,860 pounds of thrust (350.79 kilonewtons) at sea level and approximately 89,000 pounds (395.89 kilonewtons) in a vacuum. The total vehicle height of the Mercury-Redstone 3, including the booster, adapter, capsule, and escape tower, was 83.38 feet (25.41 meters). The total launch weight was 66,098 pounds (29,982 kilograms).
The flight of the Freedom 7 rocket lasted 15 minutes and 22 seconds, and the spacecraft traveled 302 miles (486 kilometers) from its launch point, ascending to 116.5 miles (187.5 kilometers). The rocket reached a speed of 5,180 miles per hour (8,340 kilometers per hour). The spaceflight mission featured the first manual pilot control of the spacecraft, with Shepard orienting the craft manually for the reentry maneuver. During its ascent, the capsule passed an altitude of 100 kilometers, the Kármán line, officially reaching outer space.
The Freedom 7 rocket was a significant milestone in the history of American space exploration, as it made Alan Shepard the first American in space. The rocket and capsule were later displayed at various locations, including the U.S. Naval Academy in Annapolis, Maryland, the John F. Kennedy Library in Boston, Massachusetts, and the Smithsonian Institution.
The Cost of Swapping a Fuel Rod: What You Need to Know
You may want to see also
Explore related products
The fuel was mixed with liquid oxygen
The Freedom 7 capsule was part of the Mercury-Redstone 3 mission, which was the first crewed flight of Project Mercury. The project aimed to put an astronaut into orbit around the Earth and return him safely. The mission took place on May 5, 1961, and was piloted by astronaut Alan Shepard. It was a suborbital flight with the primary objective of demonstrating the astronaut's ability to withstand the high g-forces of launch and atmospheric re-entry.
The Redstone MRLV rocket that powered the Mercury-Redstone 3 mission was built by the Rocketdyne Division of North American Aviation, Inc., at Canoga Park, California. The rocket was liquid-fueled and used a single NAA 75-110-A7 engine. The A7 engine produced 78,860 pounds of thrust (350.79 kilonewtons) at sea level and approximately 89,000 pounds (395.89 kilonewtons) in a vacuum.
The fuel used in the Redstone MRLV rocket was ethyl alcohol, which was burned with liquid oxygen. This combination of ethyl alcohol and liquid oxygen provided the necessary power to achieve the desired level of thrust. The total vehicle height of the Mercury-Redstone 3, including the booster, adapter, capsule, and escape tower, was 83.38 feet (25.414 meters). The total launch weight was 66,098 pounds (29,982 kilograms).
The Freedom 7 mission was a significant milestone in the history of American spaceflight. It was the first time an American astronaut had been carried into space aboard a rocket. The spacecraft reached an altitude of 101.2 nautical miles (116.5 statute miles or 187.5 km) and traveled a downrange distance of 263.1 nautical miles (302.8 statute miles or 486 km). The flight lasted 15 minutes and featured the first manual pilot control of a spacecraft.
The Dreamliner's Fuel Capacity: An In-Depth Look
You may want to see also
Explore related products
The rocket was lengthened for greater fuel capacity
The Freedom 7 rocket, also known as the Mercury-Redstone 3, was the first crewed flight of Project Mercury. The project aimed to put an astronaut into orbit around the Earth and return him safely. The rocket was piloted by astronaut Alan Shepard on May 5, 1961, and marked the first United States human spaceflight.
The Freedom 7 rocket was lengthened to provide greater fuel capacity. This modification was necessary to achieve the required fuel capacity for the mission. In addition to lengthening the rocket, several other changes were made to enhance its performance and functionality. These changes included adding a pressurized instrumentation section, simplifying the control systems for greater reliability, and installing an inflight abort sensing system.
The rocket's fuel was changed from hydrazine to ethyl alcohol, which burned with liquid oxygen. This combination provided the necessary thrust for the mission. The Redstone MRLV rocket engine, built by the Rocketdyne Division of North American Aviation, Inc., produced impressive levels of thrust. At sea level, it generated 78,860 pounds of thrust (350.79 kilonewtons), while in a vacuum, it achieved approximately 89,000 pounds (395.89 kilonewtons).
The total vehicle height of the Mercury-Redstone 3, including the booster, adapter, capsule, and escape tower, was 83.38 feet (25.414 meters). The cylindrical booster itself had impressive dimensions, measuring 59.00 feet (17.983 meters) in length and 5 feet, 10 inches (1.778 meters) in diameter. These length adjustments played a crucial role in accommodating the required fuel capacity for the mission.
The Freedom 7 mission was a significant milestone in the history of American spaceflight. By successfully completing this mission, Alan Shepard became the first American in space. The modifications made to the rocket, including its lengthened structure for greater fuel capacity, contributed to the overall success of the mission and paved the way for further advancements in crewed space exploration.
Cruise Ships: Fuel Consumption and Environmental Impact
You may want to see also
Explore related products
The rocket's engine produced 78,860 pounds of thrust at sea level
The Freedom 7 rocket, also known as the Mercury-Redstone 3, was the first crewed flight of Project Mercury. It was piloted by astronaut Alan Shepard, who named the rocket himself. The project's ultimate goal was to put an astronaut into orbit around Earth and bring him back safely. The rocket was launched on May 5, 1961, and it made history as the first American human spaceflight.
The Redstone MRLV, which propelled the Mercury-Redstone 3, was powered by a single liquid-fueled NAA 75-110-A7 rocket engine. This engine was built by the Rocketdyne Division of North American Aviation, Inc., in Canoga Park, California. Notably, the engine produced 78,860 pounds of thrust at sea level and approximately 89,000 pounds in a vacuum. This impressive performance was achieved by burning ethyl alcohol with liquid oxygen.
The choice of fuel for the Freedom 7 rocket was an important consideration. Initially, the rocket fuel for the Redstone rocket was hydrazine. However, for the Freedom 7 mission, it was changed to ethyl alcohol. This decision was made to enhance the performance and reliability of the rocket. The cylindrical booster of the rocket measured 59 feet in length and 5 feet, 10 inches in diameter.
The total vehicle height of the Mercury-Redstone 3, including the booster, adapter, capsule, and escape tower, was an impressive 83.38 feet. The rocket's launch weight was 66,098 pounds. During the flight, the spacecraft reached a remarkable speed of 5,180 miles per hour and attained an altitude of 116.5 miles. The flight lasted 15 minutes and 22 seconds, and it travelled 302 miles from its launch point.
The Freedom 7 mission was a significant milestone in the history of American spaceflight. It demonstrated the capability of human spaceflight and paved the way for further exploration. The successful launch, flight, and recovery of the spacecraft boosted national pride and inspired future endeavours in space exploration and beyond.
Fuel Discounts: T-Check Savings for You
You may want to see also
Explore related products
The rocket's fuel leaked slightly during the mission
The Freedom 7 spacecraft was part of the Mercury-Redstone 3 mission, which was the first crewed flight of Project Mercury. The project aimed to put an astronaut into orbit around the Earth and return him safely. The Mercury-Redstone 3 mission took place on May 5, 1961, and was piloted by astronaut Alan Shepard.
Shepard's mission was a 15-minute suborbital flight with the primary objective of demonstrating his ability to withstand the high g-forces of launch and atmospheric re-entry. The spacecraft was powered by a single liquid-fueled NAA 75-110-A7 rocket engine, burning ethyl alcohol with liquid oxygen. The rocket fuel for the mission was changed from hydrazine to ethyl alcohol, and the rocket's length was increased to provide greater fuel capacity.
During the mission, the Freedom 7 rocket experienced a slight fuel leak. While this was not a significant issue, it was noted as one of the few thruster fuel leaks that occurred during the flight. The attitude control system, which controls the pitch, roll, and yaw of the spacecraft, operated nominally despite the fuel leak. Due to the minor nature of the leak, the mission was able to continue as planned without any major difficulties or deviations.
Despite the fuel leak, the spacecraft performed as expected, and Shepard was able to successfully complete his mission. Following the flight, engineers examined the spacecraft and found it to be in excellent shape. They determined that it could have been safely used again for another launch if needed. The recovery process after splashdown also went smoothly, with Shepard reporting that he had landed safely and was ready to be recovered. The entire recovery process took only eleven minutes, demonstrating the efficient response and coordination of the support team.
Flex Fuel's Ethanol Content: What You Need to Know
You may want to see also
