Results 91 to 100 of about 143,533 (301)
Chemistry: Space resources for teachers including suggestions for classroom activities and laboratory experiments [PDF]
, 1971 Curriculum supplement to assist general chemistry teachers in updating instruction materials with aerospace ...
Bowman, W. H., Lawrence, R. M.
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On Maximum Evaporation Rates of Liquid Droplets in Rocket Motors [PDF]
, 1953 Upper limits have been estimated for the rate of evaporation of small liquid droplets in representative rocket combustion chambers. The droplets are assumed to be isothermal at all times. The droplet temperature as a function of time is determined by an
Penner, S. S.
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F1000ResearchBackground This study compares propellant fuels’ specific thrust and impulse parameters using nanocarbon variant fuels from coconut shells and coal. Specific impulses and impulses are essential parameters that determine rocket performance.
MAE Hafizah +3 more
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Vibration characteristics of 1/8-scale dynamic models of the space-shuttle solid-rocket boosters [PDF]
Vibration tests and analyses of six 1/8 scale models of the space shuttle solid rocket boosters are reported. Natural vibration frequencies and mode shapes were obtained for these aluminum shell models having internal solid fuel configurations ...
Barret, J. R. +4 more
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, 1981 The system includes reusable turbojet propelled booster vehicles releasably connected to a reusable rocket powered orbit vehicle. The coupled orbiter-booster combination takes off horizontally and ascends to staging altitude and speed under booster power
Jackson, L. R. +3 more
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Hybrid Rocket Engine Ignition and Control [PDF]
, 2020 Control of a hybrid rocket engine is dependent upon a robust system capable of executing commands at precise times. In order to accomplish this, hardware systems must be in place to control the flow of a pressurized gas and provide feedback to launch ...
Blampied, Trevor +3 more
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Technologies and New Methods for Determining the Burning Rate of Solid Propellants [PDF]
فناوری در مهندسی هوافضا, 2019 The burning rate plays animportant role in determining the performanceandballistic behavior of solid rocket propellant. In this paper, the effect of various factorson burning rate, such as combustion chamber pressure, poropellant grain initial ...
Mohammad Ali Dehnavi, Reza Emami
doaj
Nitrous Oxide/Paraffin Hybrid Rocket Engines [PDF]
Nitrous oxide/paraffin (N2OP) hybrid rocket engines have been invented as alternatives to other rocket engines especially those that burn granular, rubbery solid fuels consisting largely of hydroxyl- terminated polybutadiene (HTPB).
Snyder, Gary, Zubrin, Robert
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Effect of MAPO and T313 on the Rheological and Mechanical Properties of Composite Solid Propellant Based on HTPB [PDF]
فناوری در مهندسی هوافضا, 2019 Composite solid propellants have found wide spread applications in missile industries, such as high density, high specific impulse, and possibility of producing large scale grains.
Seyed Amanollah Mousavi Nodoushan +3 more
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Hypersonic aircraft design [PDF]
A hypersonic aircraft is designed which uses scramjets to accelerate from Mach 6 to Mach 10 and sustain that speed for two minutes. Different propulsion systems were considered and it was decided that the aircraft would use one full scale turbofan-ramjet.
Alkamhawi, Hani +5 more
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