uncleflo
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HOME | arcaspace
Saved by uncleflo on February 6th, 2022.
EcoRocket is designed around two main features: cost-effectiveness and eco-friendliness and it is designed to launch commercial payloads starting with 2021. The EcoRocket Heavy will follow. The first two stages are reusable and are using water-based propulsion technology that generates water vapours through cold reaction. The expandable third stage uses conventional hot rocket propulsion and it's ignited at high altitude, above the thick atmosphere. Both the first and second stage use the high efficiency aerospike engine technology. The whole rocket uses 86% water-based propellant. ARCA already tested this technology at full-scale. EcoRocket is sea-launched, directly from the sea surface, the first sea trials taking place on the Black Sea, in July 2021. EcoRocket is competing in the European Commission's 10 million Euros competition that aim to stimulate the creation of new, small orbital launchers that are cost effective and friendly to the environment.
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Basic of Space Flight: Rocket Propellants
Saved by uncleflo on September 2nd, 2014.
Propellant is the chemical mixture burned to produce thrust in rockets and consists of a fuel and an oxidizer. A fuel is a substance that burns when combined with oxygen producing gas for propulsion. An oxidizer is an agent that releases oxygen for combination with a fuel. The ratio of oxidizer to fuel is called the mixture ratio. Propellants are classified according to their state - liquid, solid, or hybrid. The gauge for rating the efficiency of rocket propellants is specific impulse, stated in seconds. Specific impulse indicates how many pounds (or kilograms) of thrust are obtained by the consumption of one pound (or kilogram) of propellant in one second. Specific impulse is characteristic of the type of propellant, however, its exact value will vary to some extent with the operating conditions and design of the rocket engine.
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Encyclopedia Astronautica - Gnom
Saved by uncleflo on September 2nd, 2014.
gnom2.jpg Gnom Launcher The Gnom missile in the erected position on its KB-3-derived tracked launcher. 9d711a.jpg PR-90 Credit: © Mark Wade shavyrin.jpg Shavyrin gnomroad.jpg Gnom Gnom transporter in mobile (left) and launch-ready (right) positions. Credit: © Mark Wade orevoso1.jpg Solid rockets, Orevo Solid rockets at Orevo 4 Credit: © Mark Wade Russian intercontinental ballistic missile. Gnom was a unique design which represented the most advanced work ever undertaken on an air-augmented missile capable of intercontinental ranges or orbital flight. Although cancelled in 1965 before flight tests could begin, Gnom was the closest the world aerospace engineering community ever came to fielding an orbital-capable launcher of less than half of the mass of conventional designs.
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NPTEL Principles of Rocket Propulsion
Saved by uncleflo on July 16th, 2014.
A video course shall consist of 40 or more lectures with 1 hour duration per lecture.
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