RocketSTEM Issue #12 - July 2015 | Page 10

The Lunar Roving Vehicle (LRV) was taken during the Apollo 15 mission. Powered by battery, the lightweight electric car greatly increased the range of mobility and productivity on the scientific traverses for astronauts. It weighed 462 pounds (77 pounds on the Moon). Credit: NASA The difference it made: Building a car for the Moon By David Clow Neil Armstrong set the first distance record with an impromptu amble to Little West crater. Pete Conrad and Alan Bean exceeded that several times over by circling out and down into Surveyor Crater. Edgar Mitchell still holds the title for longest one, over a mile, made when he and Alan Shepard went looking for Cone Crater. The Lunar Reconnaissance Orbiter photos tell the stories: for Apollo 11, 12 and 14, the dark trails scuffed in the dust show tentative explorations in this most dangerous place, where even a short hike was risky, and time was always precious. They were Moon walks, and triumphant as they were, they were frustratingly limited. The astronauts on the first three lunar landings crossed a quartermillion miles of space to investigate, at most, a few hundred yards of the lunar surface. Something more was needed to turn Apollo into real exploration. 08 08 Out of the Cold War The science fiction vision of driving on the Moon actually preceded the fact of driving on the Earth. It turned real as the space race accelerated. Cold War fear was an impetus as much as peaceful scientific curiosity. Military contractors such as Grumman, Northrup and Boeing, already involved in lunar spacecraft design, created speculations on lunar surface vehicles of all configurations—one-man, two-man, long traverse, short-hop, rolling RV-sized habitations (the Mobile Laboratory, “MOLAB”) that could carry multiple crew and operate autonomously for weeks at a time; even a rocket-belt that would boost an astronaut on twin hand-controlled jets. Billions of dollars were at stake, both for Apollo and for the permanently-based militarized Moon that the Pentagon envisioned in its 1959 proposal for Project Horizon: “The lunar outpost is required to develop and protect potential United States interests on the Moon; to develop techniques in Moon-based surveillance of the earth and space, in communications relay, and in operations on the surface of the Moon; to serve as a base for exploration of the Moon, for further exploration into space and for military operations on the Moon if required; and to support scientific investigations on the Moon.” The ambition boggled minds and budgets: they set a deadline of 1966 to open the base, and planned expansion in 1967 requiring a launch schedule of over 200 Saturn I and II boosters, a new launch complex on the Equator; and a Vehicle Assembly Building at Cape Canaveral with six support bays for Apollo launch vehicles.) This was the Cold War crystallized: money was no object and the Earth was not big enough for it. Not surprisingly, General Motors Defense Research Laboratories (GMDRL) a www.RocketSTEM .org