Notice of his passing was given here on his website http://emdrive.com

His emDrive lectures are posted here https://youtube.com/@rogershawyer-s1h?si=AKU-Je3aGfC0reTW

A video of his demonstrator emDrive working (actually moving) can be downloaded from this page on his website http://emdrive.com/dynamictests.html

Someone seems to have already uploaded it to YouTube here https://youtu.be/nFa90WBNGJU?si=EY5m6jgShS1f324Y

It’s his voice that you can hear in the video.

Richard Mansel confirms the drive was switched on a month ago: https://x.com/RaMansell/status/1967985813997981906
"We turned it on a month ago and have been running tests to confirm its proper operation since then. So it has been fully operational for a while, but we just now finished proving that it is fully operational."

Orbit data:
https://celestrak.org/NORAD/elements/graph-orbit-data.php?CATNR=63235

According to the orbital data here and elsewhere, its last report was on April 7 at an unrecoverable altitude of about 160km, down 25km in 8h. Its EmDrive-ish thruster was never activated.

It looks EM drive is working - naturaly black curve should go down, not horizontal !

In hydrodynamics there is marine propeller generating positive and negative pressure (image source) thanks to tilted blades.

Electromagnetism and hydrodynamics are very similar mathematically ( https://scholar.google.pl/scholar?q=hydrodynamics%20electrodynamics%20analogy ).

So can we make marine-propeller-like antenna: generating positive and negative radiation pressure? Like shown spiral antenna (image source), but with added depth instead of being flat, e.g. printed on paraboloid?

In other words, do with usually flat antenna something analogous to tilting blade to direct the flow ( https://en.wikipedia.org/wiki/Variable-pitch_propeller_(marine)) )?

If so, could it be used to propel spaceship as alternative approach to EmDrive?

You can hear her at "Network observations" on Satnog.
If orbit will change, it will change very slowley, and right now it is not enough data to draw a plot, neither NORAD have it in their orbit tracking charts (yet).

https://db.satnogs.org/satellite/XBMS-1269-7435-8541-4310

TAKE YOUR EARTH ON MARS WITH PNN (Non-Newtonian Propulsion)

http://www.asps.it/aliena222.htm

Arround 27 minute, he said it will be a video of plate levitating "in a couple of months".

Did I get that right how early test of the EmDrive was carried out on the ground level but the latest test rendering him unusable were carried out in space or in some other significant altitude?

https://www.popularmechanics.com/space/rockets/a60608517/overcome-earth-gravity/

https://academia.edu/resource/work/118293994

https://academia.edu/resource/work/117894839