RocketSTEM Issue #10 - February 2015 | Page 11

One must be first: alan shepard Alan Shepard in his space suit seated inside the Mercury capsule. Credit: NASA/Bill Taub Astronaut Alan B. Shepard Jr. was born in East Derry, New Hampshire on November 18, 1923. After graduating from the U.S. Naval Academy in 1944, he served in World War II aboard the destroyer Cogswell. After the war he attended flight training school and earned his wings in 1947 and went on to be a test pilot on many different aircraft. He logged more than 8,000 hours of flying time, 3,700 hours in jet aircraft, over his career. He went on to become one of the original Mercury astronauts and became the first American to go into space on May 5, 1961. Inside of the Freedom 7 spacecraft, he was launched into space by a Redstone rocket on a ballistic trajectory suborbital flight. The first American in space enjoyed just a 15 minute flight that carried him to an altitude of 116 statute miles and to a landing point 302 statute miles down the Atlantic Missile Range. With astronauts today staying six months aboard the International Space Station, that hardly seems impressive, but in 1961 it was a tremendous accomplishment. An inner ear problem discovered later in his career grounded him from flying again, but he remained at NASA as Chief of the Astronauts Office with responsibility for monitoring the coordination, scheduling, and control of all activities involving NASA astronauts. Following an operation on his ear, he was restored to flight status in May of 1969 where he began to train on the Ap ollo program. He went on to become the fifth American to walk on the Moon as Commander of Apollo 14. He spent a total of 9 hours and 17 minutes exploring the surface of the Moon. Much to the surprise of just about everyone, at NASA and elsewhere, he even hit a couple of golf balls up there. One small step: neil armstrong Neil Armstrong was born on August 5, 1930, in Wapakoneta, Ohio. He grew up with a fascination with airplanes and flight at an early age, having learned to fly at the age of 15, before he could drive a car. He went to Purdue University where he obtained a Bachelor of Science in Aeronautical Engineering. He later earned his Master of Science in Aerospace Engineering from the University of Southern California. His studies were interrupted in 1949 when he was called to serve in the Korean conflict, where he flew 78 combat missions as a Navy Pilot. After the war, Neil left the Navy and returned to his studies. So unlike many of his fellow Navy Astronauts, he was not still in the Navy when NASA selected him to become an Astronaut, but he’s included here since he made a few important contributions during his career at NASA. In 1955 he joined the National Advisory Committee for Aeronautics (NACA), which later became the National Aeronautics and Space Neil Armstrong stands next to the X-15 ship after a research flight. Administration (NASA). As a test pilot and engineer, he flew many highspeed aircraft, including the X-15, which could reach a top speed of 4,000 miles per hour. Over the course of his career Neil flew over 200 different aircraft including helicopters, jets, and of course rockets. Selected to the second group of Astronauts in 1962, Neil went on to command the Gemini VIII mission in 1966. This would be the 6th manned Gemini flight and the first to perform a docking with the unmanned Gemini Agena Target Vehicle (GATV). The primary mission objectives were to perform rendezvous and four docking tests with the Agena target vehicle and to execute an Extra Vehicular Activity (EVA) experiment. Other objectives included parking the Agena in a 410 km circular orbit, performing a re-rendezvous with the Agena, and some other tests and experiments as well. Armstrong and his co-pilot Astronaut Dave Scott launched on March 16, 1966 and spent the next six hours catching up with the GATV which had launched an hour and forty-one minutes earlier. They docked their spacecraft with the GATV at 5:14 PM. Approximately 27 minutes later the docked spacecraft began to roll, after attempts to stop the docked spacecraft’s roll, Armstrong undocked from the GATV. This however sped up their rotation; the crew then managed to shut down the Orbit Attitude and Maneuvering System (OAMS) that is used to control their spacecraft and brought up the 09 www.RocketSTEM .org 09