The aircraft and/or taxi service might be legit but all the crypto around it is useless complexity at best or a complete scam at worst.

If you legitimately wanted to develop an aircraft taxi service, you do not need to involve crypto in any way. Even if you wanted to accept it for payments it's an auxiliary component that merely accounts for it and converts to fiat at some point.

The DAO or whatever crypto bullshit is intertwined with it is absolutely a scam.

You would honestly ride in his ‘open source’ VToL? and use his air taxi service?

I don’t think this is legit at all.

"legit persons" are always materializing out of thin air with $100m+ and a "legit project" that is just a content-free web page. I will definitely be surprised when "thomasg.eth" uses this publicity to generate interest in his "legit project" and then rugpulls

Did you take a look at arrowair.com? Everything about that screams "art project". None of it makes sense. There are extreme engineering, economic, and legal challenges to doing have of what they are proposing, so the first thing they are investing in are their crypto projects? Because crypto crypto future future?

I don't necessarily think the author is a scammer, but the whole project is the equivalent of "I'm going to launch a rocket to the moon" and then the first thing you do is open a nice website and launch a new token.