I'd love to see a video of this...
One wonders how they would even fly this...
You can just imagine patterns (circuits for those of you yonder)....
The r/t soundtrack would be amusing...
"Reporting left downwind, abeam chimney..."
"Long finals.... long chimney"
"Short finals... short chimney"
"Reporting left downwind, abeam, uhm, uhm, where the chimney used to be"