Model B6 - parasol-wing agricultural project with bubble canopy, not built.
This was the first prototype to be converted to the bubble canopy used on production B-36s.
The pilot and instructor sat in tandem under a long bubble canopy.
The bubble canopy can be removed for flight in warm weather.
The pilot's seat was enclosed by a sliding, bubble canopy.
The primary distinguishing factors are size and that the Su-9 has a bubble canopy.
The aircraft has a bubble canopy and a conventional low tail.
For part of its time it had the bubble canopy.