Why the "Sunflower" Hurricane ?
Allegedly because of the explosive manner that the sunflower uses to eject its seeds.
I do believe that the project reached physical form -either a mock-up or prototype.
A bit of thread drift, but at the same time the "Slanted/Jazz Music" name was explained to me by a German I also got the explanation for the Ju 88- "Stortebakker" ( Excuse spelling etc.) intruder aircraft.
He was a famous old German pirate.