Reinventing the wheel again! In summer 1984, I was attached to the AEW group at RSRE, as was. It was decided to fly the Skyship 600 against one of the East coast radars to see what it looked like. I was sent to Cardington, armed with a Clansman, and another engineer went to the radar site. I spent an enjoyable day flying up and down the coast in the Skyship.
We concluded that, with more consideration given to construction, less metal and properly cowled engines, the signature would be tiny. Then someone remembered the wind problems and it all went away.