British aerospace company claims biggest engine advance since the jet

Re:British aerospace company claims biggest engine advance s... by tompko on Wednesday November 28, 2012 @11:29AM (#4843334)

> while this can only be useful where you still have atmosphere and oxygen

The planned SABRE engine can act as a rocket as well closing the intake and using stored liquid oxygen so it would be capable of operating without an atmosphere and oxygen and landing on Mars.

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Re:British aerospace company claims biggest engine advance s... by stephengillie on Wednesday November 28, 2012 @02:13PM (#4844122)

Can it take off from Mars? In another HN thread a month ago, we discussed how Mars' atmosphere is so thin that a Cessna would need 747 wings and near Mach 1 velocity to take off.

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Re:British aerospace company claims biggest engine advance s... by wololo on Wednesday November 28, 2012 @04:13PM (#4844793)

fyi: https://news.ycombinator.com/item?id=4261806, https://news.ycombinator.com/item?id=4608595

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Re:British aerospace company claims biggest engine advance s... by ricardobeat on Wednesday November 28, 2012 @02:54PM (#4844337)

Rockets are propelled by their own exhaust.

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