Days
Hours
Mins
Secs
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947.
Ranger 4 was a spacecraft designed to softly impact the lunar surface. Its solar panels were never extended and its sun and earth acquisition system was not initiated due to a failure of a timer in its central computer. It impacted the far side of the Moon on April 26 after 64 hours of flight.
Height 20.27 Meters
Max Stages 0
Mass To GTO 0 kg
Liftoff Thrust 363 kN
Diameter 3.05 Meters
Mass To LEO 0 kg
Liftoff Mass 130 Tonnes
Launch Success 21
Consecutive Success 6
Maiden Flight 1961-01-31
Launch Failures 8