International Aerospace Abstracts PDF Download
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 940
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 940
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Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 556
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Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 554
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Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 538
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Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 430
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Author: American Institute of Physics
Publisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 1292
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Albuquerque, New Mexico, 8-11 February 2004
Author:
Publisher: Univelt
ISBN:
Category : Science
Languages : en
Pages : 764
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Author: Craig H. Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 616
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721289530
Category :
Languages : en
Pages : 38
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Book Description
The prospects for "24 hour" commuter flights to the Moon. similar to that portrayed in 2001: A Space Odyssey but on a more Spartan scale. are examined using two near term. "high leverage" technologies-liquid oxygen (LOX)-augmented nuclear thermal rocket (NTR) propulsion and "lunar-derived" oxygen (LUNOX) production. Iron-rich volcanic glass. or "orange soil," discovered during the Apollo 17 mission to Taurus-Littrow. has produced a 4% oxygen yield in recent NASA experiments using hydrogen reduction. LUNOX development and utilization would eliminate the need to transport oxygen supplies from Earth and is expected to dramatically reduce the size, cost and complexity of space transportation systems. The LOX-augmented NTR concept (LANTR) exploits the high performance capability of the conventional liquid hydrogen (LH2)-cooled NTR and the mission leverage provided by LUNOX in a unique way. LANTR utilizes the large divergent section of its nozzle as an "afterburner" into which oxygen is injected and supersonically combusted with nuclear preheated hydrogen emerging from the engine's choked sonic throat-essentially "scramjet propulsion in reverse." By varying the oxygen-to-hydrogen mixture ratio, the LANTR engine can operate over a wide range of thrust and specific impulse (Isp) values while the reactor core power level remains relatively constant. The thrust augmentation feature of LANTR means that "big engine" performance can be obtained using smaller. more affordable. easier to test NTR engines. The use of high-density LOX in place of low-density LH2 also reduces hydrogen mass and tank volume resulting in smaller space vehicles. An implementation strategy and evolutionary lunar mission architecture is outlined which requires only Shuttle C or "in-line" Shuttle-derived launch vehicles, and utilizes conventional NTR-powered lunar transfer vehicles (LTVs), operating in an "expendable mode&q
