Grumman Goose (C-GYVG)

Is that a Goose on steroids?

This is the Martin Mars; largest amphibian existing.
The Martin JRM Mars
was designed and built for the US Navy during WWII as a long-range ocean patrol flying boat and deployed as a fire fighting bomber by Coulson. It has been For Sale quite a long time now

Once there were five; Marianas Mars, Philippine Mars, Marshall Mars, Caroline Mars, and a Hawaii Mars. The other four were lost by various accidents.
4 × Wright R-3350 Duplex-Cyclone 18-cylinder radial engines & Wingspan: 200 ft.

The Hughes H-4 Hercules (commonly known as the Spruce Goose; registration NX37602) is a prototype strategic airlift flying boat and was airborne only ONCE.
It boast 8 × Pratt & Whitney R-4360 Wasp Major 28-cylinder air-cooled radial & Wingspan: 320 ft 11 in

Nice picture, Juergen. You might want to change the ICAO Aircraft Type Designator to: MARS. That's the code for a Martin JRM Mars.