I have no personal experience with such craft. I am involved in jet aircraft.
The pointed vertical electrodes are clearly visible in most if not all of the photo's. They are the semi cone shaped rods that protrude upward from the ring. My theory is that the shape produces airflow (what a surprise!) that passes silently through the ring.
My thoughts on the largest arm (the segmented one) is that it can be magnetized. Polarization can change and it can be turned on/off or modulated. There is no reason it needs to point north. In fact, with a N polarization, it would point South, or swing south. I find it interesting that it has 4 visible (support) rods internal to it. These could likely be modulated in various ways for manuvering. The length is required for torque. Simple physics.
The characters are for disinformation and confusion. They mean nothing. They are clearly strange enough to confuse, yet we clearly recognize them as characters. A truly complex foreign language might not even look like characters to us. Think about the new style bar code replacement which look like a strange box with dots. Looks nothing like words or characters does it?
Isaac claims these parts are solid all the way through, perform work, and are controlled by characters written on the surface. Impossible. Clear disinformation. The objects are clearly complex, not solid. Oh yeah, he also claims invisibility. Stealth might be possible, but these things are clearly meant to be seen. I used photoshop and enlarged the photo's to 5000 pixels wide with an interesting plug in that I have. I then sharpened the pics, lighetened the dark areas and the details are a bit clearer. Much like I would do with astronomical pics. Clearly they are complex.
I wish I had some technical information that could confirm my thoughts. But, like many here, I am simply a technically minded guy.
I just learned about these a week ago. The first thing I thought about, was what I was taught in flight school. That back in the '40's, jet aircraft had no visible means of propulsion and people could not understand what made them fly. In fact, early on in the jet testing phase, farmers would report a strange looking aircraft without an engine or prop. No one would believe them.
Chris