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A comment on Ask HN: Why can't jets use a rocket engine like Raptor?. Parent comment

Re:Ask HN: Why can't jets use a rocket engine like Raptor? by starbase on Monday October 02, 2023 @10:22PM (#37747163)
In addition, jets (specifically turbofans) use air as reaction mass. This multiplies their efficiency severalfold.
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Re:Ask HN: Why can't jets use a rocket engine like Raptor? by keepamovin on Monday October 02, 2023 @10:42PM (#37747329)
Because they're pushing stuff out that they don't have to carry? So it's like the get the thrust without the extra weight of the air?
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