I did some sniffing around and it appears that all most Moncopter are is a mounted rocket motor on the root end of one propeller blade, a lot of counterbalancing, and a spinning vertical takeoff.

---usually followed by laughter and bad words.

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Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078