I think what Rob was eluding to was the servo action in the arms needed to position the props and change the pitch and yaw of the drone. They will also be in constant motion to ensure the weight distribution remains constant for changes in attitude.
Non-the-less, I’d like one in my collection but not at the current RRP.
This would go well in my collection. bi-rotor but a wee bit bigger:
Just for your amusement and interest, there are bi-rotor drones available (or perhaps it is a bi-rotor helicopter).
On sale @ Aliexpress…under a grand
Also
For giggles I ordered one of these from Banggood, only to be told the following day they wouldn’t ship it to the UK. I think they did me a favour as by all accounts it flies like a five year old full of sugar.
David Windestal (rcexplorer.se) came up with a working prototype that used a Naze32 flight controller a few years back, the full details of which he released to the OS community.
Since the newer Bi-Rotor thread is being populated with info relating to the older V-Copter thread - they have been merged.