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A comment on Silent and Simple Ion Engine Powers a Plane with No Moving Parts. Parent comment

Re:Silent and Simple Ion Engine Powers a Plane with No Movin... by ben_w on Wednesday November 21, 2018 @02:13PM (#18505180)
I’ve looked at this idea myself. At current cost per kg to LEO launch and kW/kg solar, even if you could totally ignore reaction mass (I dunno, invent a ramscoop for van Allen belts or something), it only becomes cost competitive with dynamite after a few years.
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Re:Silent and Simple Ion Engine Powers a Plane with No Movin... by DuskStar on Wednesday November 21, 2018 @05:34PM (#18506649)
Dynamite doesn't come with a delivery mechanism though, which might change the equation a little.
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