Multiple independently targetable reentry vehicle Essays
There it remained through Earth parking orbit and the trans-lunar injection TLI rocket burn to send the craft toward the Moon.
During the flight to the Moon, the docking hatches were opened and the lunar module pilot entered the LM to temporarily power up and test all systems except propulsion. The lunar module pilot performed the role of an engineering officer, monitoring the systems of both spacecraft. After achieving a Multiple independently targetable reentry vehicle Essays parking orbit, the commander and LM pilot entered and powered up the LM, replaced the hatches and docking equipment, unfolded and locked its landing legs, and separated from the CSM, flying independently. The commander operated the flight controls and engine throttle, while the lunar module pilot operated other spacecraft systems and kept the Muktiple informed about systems status and navigational information.
After the command source pilot visually inspected the landing gearthe LM was withdrawn to a safe distance, then rotated until Multipe descent engine was pointed forward into the direction of travel. A second descent orbit insertion burn was performed to reduce speed and drop the LM's perilune to within about 50, feet 15 km of the surface, [4] about nautical miles km uprange of the landing site.
Lunar Module Eaglethe lunar module ascent stage of Apollo 11in orbit above the Moon. Earth is visible in the distance.
Photograph by Michael Collins. As the craft approached perilune, the descent engine was started again to begin powered descent. During this time, the crew flew on their backs, depending on the computer to slow the craft's forward and vertical velocity to near zero.
Navigation menu
Control was exercised with a combination of engine throttling and attitude thrusters, guided by the computer with the aid of landing radar. During braking, the LM descended to about 10, feet 3. During final approach, the vehicle pitched over to a near-vertical position, allowing the crew to look forward and down to see the lunar surface for the first time.]
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