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- Generating answers for you...Since thrust depends on both the amount of gas moved and the velocity, we can generate high thrust by accelerating a large mass of gas by a small amount, or by accelerating a small mass of gas by a large amount. Because of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount.Learn more:Since thrust depends on both the amount of gas moved and the velocity, we can generate high thrust by accelerating a large mass of gas by a small amount, or by accelerating a small mass of gas by a large amount. Because of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount.www.grc.nasa.gov/WWW/k-12/VirtualAero/BottleR…The point here is that the most efficient way to get this momentum change with minimal losses is to accelerate a large mass of air by a small amount (small change in speed). This means that the bigger the bypass ratio (the ratio of the bypass air mass to the mass of air going through the engine core) the more efficient the engine is.pressbooks.lib.vt.edu/aerodynamics/chapter/chapt…
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See all on WikipediaPropulsion - Wikipedia
Because of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount, which is why high-bypass turbofans and turboprops are commonly used on cargo planes and airliners. See more
Propulsion is the generation of force by any combination of pushing or pulling to modify the translational motion of an object, which is typically a rigid body (or an articulated rigid … See more
Air propulsion
An aircraft propulsion system generally consists of an aircraft engine and some means to generate thrust, such as a propeller See more• Media related to Propulsion at Wikimedia Commons
• Pickering, Steve (2009). "Propulsion Efficiency". … See moreWikipedia text under CC-BY-SA license Beginner's Guide to Propulsion - NASA
WEBMay 13, 2021 · Because of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount. That is why we find high bypass fans and turboprops on cargo planes …
Chapter 2. Propulsion – Aerodynamics and Aircraft Performance, …
WEBAug 6, 2021 · The point here is that the most efficient way to get this momentum change with minimal losses is to accelerate a large mass of air by a small amount (small …
- Author: James F. Marchman
- Publish Year: 2004
Water Rocketry - An Aerodynamic Lesson - NASA
WEBBecause of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount. That is why we find high bypass fans and turboprops on cargo planes and airliners.
Spacecraft propulsion - Wikipedia
In-space propulsion begins where the upper stage of the launch vehicle leaves off, performing the functions of primary propulsion, reaction control, station keeping, precision pointing, and orbital maneuvering. The main engines used in space provide the primary propulsive force for orbit transfer, planetary trajectories, and extra planetary landing and ascent. The reaction control and orbital maneuvering systems provide the propulsive force for orbit maintenance, position control, statio…
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 9 mins
propulsion - Why does this formula say rocket efficiency depends …
WEBApr 29, 2020 · Nightrider. 2,035 16 22. Rocket should accelerate a payload to given fixed velocity V. (For example V=7.8 km/s for launch to low Earth orbit). The variable is Ve. If …
Guide to Propulsion | ScienceIQ.com
WEBBecause of the aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass by a small amount. That is why we find high bypass fans and turboprops on cargo planes and airliners.
9.7 Rocket Propulsion | University Physics Volume 1
WEBWe analyze the motion of a rocket, which changes its velocity (and hence its momentum) by ejecting burned fuel gases, thus causing it to accelerate in the opposite direction of the velocity of the ejected fuel (see ). …
Piston Engines and Propellers | SpringerLink
WEBMay 26, 2016 · Because of the high aerodynamic efficiency of propellers and fans, it is more fuel efficient to accelerate a large mass of air by a small amount. That is why …
A new era of spaceflight? Promising advances in …
WEBMay 10, 2021 · Once in space though, they are much more efficient than chemical rockets – for a given mass of propellant, they can accelerate a spacecraft to much higher speeds.
A new era of spaceflight? Promising advances in …
WEBMay 10, 2021 · Once in space though, they are much more efficient than chemical rockets—for a given mass of propellant, they can accelerate a spacecraft to much higher speeds.
Can you explain how jet propulsion engines work?
WEBMay 1, 2000 · To do so, they impart a moderate increase in the mass velocity to the combustion products for the large mass of air drawn through the engine in a given time.
What is the limit to space propulsion systems? why cant a
WEBThere's a limit to how much thrust can be generated by a given mass of fuel, E=mc 2 for a 100% efficient antimatter type reactor. For example it would take 38kg of fuel to get 1kg …
How can jet engines be more efficient than propellers?
WEBJun 15, 2020 · If so, propellers should be way more efficient because, by accelerating a larger mass of air, they're able to generate more force (thrust) while performing less …
A New Era of Spaceflight? Exciting Advances in Rocket Propulsion
WEBJun 11, 2021 · As the charged xenon atoms accelerate out of the thruster, they transfer a very small amount of momentum (the product of mass and velocity) to the spacecraft, …
Introduction to Propulsion - Learn about careers in space
WEBPropulsion is the art of throwing mass away as fast as possible and as efficiently as possible. Spacecraft engineers use propulsion systems both to speed up to get to higher …
Dawn of a new era: the revolutionary ion engine that took …
WEBMar 6, 2015 · NASA. The ion engine will propel the next generation of spacecraft. Electric power is used to create charged particles of the fuel, usually the gas xenon, and …
What would be the most fuel-efficient propulsion solution to …
WEBJan 26, 2023 · The most fuel-efficient way to move a chunk of asteroid is the most fuel-efficient way to move anything, but photon rockets/sails may not be the most practical, …
Fundamentals of Propulsion Systems – Introduction to Aerospace …
WEBThe purpose is clear: it is much more efficient to create thrust by accelerating a large mass flow of air through the fan and expelling it at a lower velocity versus accelerating a …
Electric Propulsion for Space Travel
WEBHowever, for space travel, electric propulsion is much more efficient and can accelerate the spacecraft to much larger velocities than with a chemical propellant. Although the …
Chemical Propulsion Systems | Glenn Research Center | NASA
WEBApr 17, 2023 · Electric Propulsion Systems typically use electric heating or electric or magnetic fields to accelerate propellants (usually gases). These systems can be very …
How Do Rockets Work? A Basic Explainer - MSN
WEBWhen a chemical rocket engine fires, it's the purest expression of Newton's Third Law of Motion: For every action, there is an equal and opposite reaction. So, the rapidly …
Propulsive Efficiency of Wake Ingestion | Journal of Propulsion …
WEBApr 24, 2020 · About. Abstract. Wake ingestion has been studied in order to develop a physics-based understanding of its effect on engine power and propulsive efficiency. A …
Assuming a 100%-efficient propulsion system using matter
WEBAssuming a 100%-efficient propulsion system using matter-antimatter annihilation, how much antimatter fuel would it take to accelerate a 5 million kg ship to (nearly) the speed …
Federal Register :: Corporate Average Fuel Economy Standards …
WEBJun 24, 2024 · Start Preamble Start Printed Page 52540 AGENCY: National Highway Traffic Safety Administration (NHTSA). ACTION: Final rule. SUMMARY: NHTSA, on behalf of …
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