Unknown principles? Damn near impossible I would say unless the important features are so obvious by inspection that even someone who has no idea what's going on which is likely to notice them. That seems unlikely even at a the technology of the ancient world.
But even something like people seeing wings didn't really help them with building working flying machines. A wing just looks like a big flat curved long thing. A piece of high speed steel just looks like any other piece of metal and so does an antenna. And a computer chip just looks like a shiny piece of glass. If you don't have no idea what you're looking at then how are you are supposed to be payingknow what to pay attention to.?