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For rocket-like propulsion systems, this is a function of mass fraction and exhaust velocity; mass fraction for rocket-like systems is usually limited by propulsion system weight and tankage weight. [ citation needed ] For a system to achieve this limit, the payload may need to be a negligible percentage of the vehicle, and so the practical ...
In 1912, Robert Esnault-Pelterie published a lecture [71] on rocket theory and interplanetary travel. He independently derived Tsiolkovsky's rocket equation, did basic calculations about the energy required to make round trips to the Moon and planets, and he proposed the use of atomic power (i.e. radium) to power a jet drive. Robert Goddard
Rocket Propulsion Elements 7th ed, 2001, Wiley-Interscience. Sutton and Biblarz This book provides a thorough introduction to many facets of rocket engineering and a summary of the various altitude compensating nozzles (pp. 75–84). Aerospaceweb.org This site discusses various types of nozzle including the expansion-deflection design.
The rocket is launched using liquid hydrogen and liquid oxygen cryogenic propellants. Rocket propellant is used as reaction mass ejected from a rocket engine to produce thrust . The energy required can either come from the propellants themselves, as with a chemical rocket , or from an external source, as with ion engines .
In the second part (Physical-technical issues) and third part (Construction issues), Oberth describes in detail his principles of rocket propulsion using liquid fuels. He often simplifies the mathematical derivations and formulas by using approximations for certain quantities that were easier to treat mathematically.
A pulsed plasma thruster (PPT), also known as a Pulsed Plasma Rocket (PPR), or as a plasma jet engine (PJE), is a form of electric spacecraft propulsion. [1] PPTs are generally considered the simplest form of electric spacecraft propulsion and were the first form of electric propulsion to be flown in space, having flown on two Soviet probes ...
Principles of Guided Missile Design is a textbook and reference book written by E. Arthur Bonney, Maurice J. Zucrow, and Carl W. Besserer in 1956. The book is a glossary of rocket and space flight terms, an introduction to rocket design, parametric studies and student instruction. The book is written in English and was published by Van Nostrand ...
The fission sail is a type of spacecraft propulsion proposed by Robert Forward that uses fission fragments to propel a large solar sail-like craft.It is similar in concept to the fission-fragment rocket in that the fission by-products are directly harnessed as working mass, and differs primarily in the way that the fragments are used for thrust.