This one here in this post is only a prototype. The ekranoplans where actually used.

Looks an ai Video

What is the range of this vessel? It doesn’t say in the article

Again: are you positive that your phone is actually capable of display output over usb C? Just because it is USB C does not mean it supports that.

That is not really „OTG“.

The question here is, does your phone have USB3? Does it have display out over usb? Most phones do not, or they only have usb2. In that case I guess your approach will not work…

Have you tried connecting your phone to a pc to get data off in that way?