While occasionally looking through RC classifieds around the web, I have seen people selling their RC helicopter claiming that their helicopter is Professionally Built.
Should people be making this claim?
To me, that would mean someone conforming to a technical standard, so for instance, to claim to be a professional one would need to be an aircraft mechanic.
I know there are qualified aircraft mechanics in this hobby, so yes they can make this claim.
I have occasionally seen a properly built RC helicopter on classifieds, where, they did things like cut and crimp the servo wires to the exact length, used proper braiding for the servo wires, heat shrunk the ends, cable tied everything neatly, etc etc. So, if they used all the right thread locker, grease, tightened everything just right, not so tight you will round the screws when you go to undo them, and balanced all the blades etc. I think those people can make that claim.
But, as for other classified ads, which I have seen an average built finish in terms of the wiring etc, and the fact these days you can only put together a modern rc helicopter together in so many different ways, i.e. one, how can someone claim to built a helicopter professionally?