Thrustme - résultats des expériences menées lors du premier vol en orbite du moteur pour Cubesats, fonctionnant à l’iode. L'ESA investit dans le moteur fusée réutilisable Prometheus. On va enfin savoir si l'eau est un système de propulsion efficace dans l'espace. AEROSPIKE - Le FUTUR de la propulsion spatiale ? LDDE.
Des moteurs et des hommes. Tau Zero Foundation. “We look for things.
Things that make us go.” ~ Pakled Captain, Grebnedlog, Episode “Samaritan Snare” (1989), Star Trek – The Next Generation [Inspirational fiction] This outline covers both the conceivable and ideal methods to power and propel starships. The distinction between conceivable and ideal is based on whether the ideas are technological applications of accrued physics, or if the ideas require further advances in physics before their technology can be designed and built. All of the ideas in this category are possible, in principle.
The relative merit of each of these ideas will also vary depending on the chosen mission and vehicle requirements. The main point is that there is no definitive ‘best’ idea at this time. Regardless of not being able to predict which idea is best, the further pursuit of each idea will likely produce valuable insights.
Projet Daedalus. Scramjet - Ramjet. Moteur à distortion. Turbomachines. Moteur à détonation (OWDE) Propulsion Ionique. Propulsion nucléaire thermique. Moteur à plasma. Engine - Atomic Rockets. Tyranny is a human trait that we sometimes project onto Nature.
This projection is a form of rationalization, perhaps a means to cope with matters that we cannot control. Such is the case when we invent machines to free us from the bounds of Earth, affecting our escape into space. If we want to expand into the solar system, this tyranny must somehow be deposed. Rockets are momentum machines. They spew gas out of a nozzle at high velocity causing the nozzle and the rocket attached to it to move in the opposite direction. The energy expenditure against gravity is specified by where you want to go. Next we need to choose the type of rocket propellant, thus specifying the available energy. With these two variables set, the rocket mass fraction is now dictated by the rocket equation. From this simple table, a few conclusions can be drawn. Listed next are the major categories for our chemical rocket propellants and their energy content used for payment of the gravitational cost of travel.
Engine Intro - Atomic Rockets. Here is your handy-dandy cheat-sheet of rocket engines.
Without one of these, your spaceship ain't a spaceship. And if any smart-alec asks about a reactionless drive, it is atomic wedgie time. Use this as a jumping-off point, there is no way I can keep this up-to-date. Google is your friend! There are two types of engines, three if you count Torchships. Muscle rocket engines have high thrust but low specific impulse, they burn rubber like nitro-fueled funny car with its buns on fire but the gas mileage sucks rocks through a garden hose. Fuel Economy rocket engines have low thrust but high specific impulse, they push about as hard as asthmatic hummingbird but you can tool around the entire solar system with just a teacup of propellant.
Some engines can shift gears, trading thrust for specific impulse and vicey versy also. And Torchships break the rules by having both high thrust and high specific impulse. I'll point out a few of the more useful items on the sheet: Atomic Fuel - Atomic Rockets. In my recent appearance on The Space Show I made the observation that we have (or, rather, the nation-states of the world have) decided to forego some of the existential opportunities of nuclear technology in order to mitigate the existential risk of nuclear proliferation.
We have not entirely eliminated nuclear technology, but what nuclear technology we do use operates under strict regulation intended to prevent the proliferation of fissionable materials. I said that nuclear technologies represent an existential opportunity because nuclear rockets could have opened up the solar system to human exploration and settlement. Both rocket and nuclear technologies emerged during the Second World War and were rapidly developed during the post-war period.
Elon Musk will Reach Mars With This Amazing Rocket Engine. Fusion Fuel - Atomic Rockets. Why fool around with dirty, obsolete, uncool, relatively weak, and dangerously radioactive nuclear fission when you can use clean, cutting edge, trendy, more powerful, and practically radiation-free nuclear fusion?
Because we can't figure out how to build a blasted fusion reactor, that's why. Researchers have been promising us a workable fusion reaction "in the next ten years" for more than half a century now. To me they look like Lucy telling Charlie Brown to come kick the football just one more time. Methinks the problem is just a tad more difficult than they are willing to admit to their investors. Antimatter Fuel - Atomic Rockets. (ed note: Contra-terrene is an ancient term for antimatter.
Contra-terrene = C.T. = Seetee. Jack Williamson invented the term. In the novel there are chunks of antimatter floating freely in the asteroid belt, fragments from some antimatter planet. Rolls-Royce : veut développer la propulsion hypersonique. (CercleFinance.com) - En tant que membre fondateur du nouveau Centre d'essais au sol hypersonique (HGTC) de l'Université Purdue (Indiana, USA), Rolls-Royce annonce 'des efforts de développement importants' et une augmentation de ses capacités de tests, sur ce site d'essais destiné à l'industrie aérospatiale.
