Based on Q/A of this type found in book 5:
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8.26 Questioner: I am totally aware how this line of questioning is [of] no consequence at all, but this particular information is so startling to me that it makes me question your validity on this. Up until this point, I was in agreement with everything. This is very startling, and [it] does not seem possible that this secret could have been kept twenty-seven years, and that we are operating these craft. I apologize for my attitude, but I thought I would be very honest about this. It is unbelievable to me that we would operate a plant in Mexico, outside of the United States, to build these craft. Maybe I’m mistaken. These craft are physical craft built by our physical people? I could go get in one and ride in one? Is that correct?
Ra: I am Ra. This is incorrect. You could not ride one. The United States, as you call your society divisional complex, creates these as a type of weapon.
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Note on 1:00 craft is triangular when the person taking the video is zooming in:
https://www.youtube.com/watch?v=YQWqiI0jlQc