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5 votes

Is engine thrust noticeably increased near the ground?

In the context of your question, whether there is a thrust-enhancing ground effect either during take-off or terminal landing, the answer is apparently "no". Citing "Mars Exploration ...
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5 votes
Accepted

How to plot a satellite's orbit around Earth in MATLAB?

Like the comment above mentions, you wouldn't need mass of the satellite unless its a Deathstar. Also, you would need the initial values of elements you want to propagate. Since you mention that you ...
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4 votes

Could a laser ablation-based propulsion system really accelerate an object to 0.001 c?

This should be useful to you. Take especial note of the method of bombarding afoil with a femotsecond pulse beam to emit relativistic ions. Granted, not sure if that would work with beam propulsion ...
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5 votes

How does Spinlaunch manage the counterweight right after launch?

Following Christopher James Huff great comment, some heavy counterweight on a very short arm could roll inside a cage. When spinning up the whole thing is balanced, the counterweight spins and rolls ...
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8 votes

How does Spinlaunch manage the counterweight right after launch?

Spinlaunch releases the counterweight at the same time as the vehicle. Their patent says: The launch vehicle 105 may be released from the launch vehicle tether... Simultaneously, the counterweight ...
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