Ultraman VTOL Plane (Space Booster Version)

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BABAR

Builds Rockets for NASA
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The kick, yes. The mass reduction will hurt the altitude. Immeasurably, agreed, probably yes.

Once the rocket is up to speed, whatever that top speed is, greater inertia helps because it diminishes the effect of drag. That's why there's an optimum launch mass; more mass means a lower top speed and less mass means slowing down faster. But mass ejected after burnout only affects the latter.
Good point, I hadn’t thought about that. I slouch corrected!
 

BigMacDaddy

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Good point, I hadn’t thought about that. I slouch corrected!
Conservation of momentum would suggest that the rocket would be propelled forward in proportion to the weight of the ejected engine... not sure which micro-force will be more substantial. None will be as substantial as the drag of my poor quality primer job...

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