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Post by newageofpower on Jul 22, 2020 20:04:47 GMT
But it will also expose the hot chamber to a wider solid angle (portion of the sky), thus it will make it easier to be spotted by a spy satellite. OTOH, deacreasing the nozzle expansion angle will balloon the nozzle mass and size. The NTR-stealthship proposal assumes you'd use shutters and pulsed propulsion which negates the threat of spysats peering down your exhaust nozzle.
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