Advantages
Unlike traditional rocket engines, and like other types of air breathing jet engine, a hybrid jet engine can utilise air to create combustion saving on propellant weight and therefore increasing payload fraction.
Ramjets and Scramjets must spend a significant amount of time within the lower atmosphere to build speed to reach orbital velocity creating issues with extremely high drag leading to intense heating and the subsequent weight and complexity of required thermal protection. A hybrid jet like SABRE needs only reach low hypersonic speeds inside the lower atmosphere before engaging its closed cycle mode, whilst climbing, to build speed.
Unlike ramjet or scramjet engines the design is able to provide high thrust from zero speed up to Mach 5.5, with excellent thrust over the entire flight, from the ground to very high altitude, with high efficiency throughout.
In addition this static thrust capability means the engine can be easily tested on the ground, which drastically cuts testing costs.
Read more about this topic: SABRE (rocket Engine)
Other articles related to "advantages":
... The two-fold advantages of these systems are solving the problem of limited training data and tracking the temporal variations of the input data through adaptation ... is expected to gain momentum because of their key promulgated advantages ... Despite these advantages, there are several open issues involved with these systems ...
... The main advantages of using a superheater are reduced fuel and water consumption but there is a price to pay in increased maintenance costs ... In locomotives used for mineral traffic the advantages seem to have been marginal ...
... A major advantage of C4 is that it can easily be molded into any desired shape ... C4 can be pressed into gaps, cracks, holes and voids in buildings, bridges, equipment or machinery ...
... reuse as a sustainable avenue in the development of key sites, there are many advantages to using certain sites for redevelopment ... Some of these advantages include the site’s location in many cases, historical sites are often located in the centers of large cities due to the spatial ...
Famous quotes containing the word advantages:
“The respect for human rights is one of the most significant advantages of a free and democratic nation in the peaceful struggle for influence, and we should use this good weapon as effectively as possible.”
—Jimmy Carter (James Earl Carter, Jr.)
“To say that a man is your Friend, means commonly no more than this, that he is not your enemy. Most contemplate only what would be the accidental and trifling advantages of Friendship, as that the Friend can assist in time of need by his substance, or his influence, or his counsel.... Even the utmost goodwill and harmony and practical kindness are not sufficient for Friendship, for Friends do not live in harmony merely, as some say, but in melody.”
—Henry David Thoreau (1817–1862)
“A woman might claim to retain some of the child’s faculties, although very limited and defused, simply because she has not been encouraged to learn methods of thought and develop a disciplined mind. As long as education remains largely induction ignorance will retain these advantages over learning and it is time that women impudently put them to work.”
—Germaine Greer (b. 1939)