HEY SANTONOMOS, NICE F6F HELLCAT. HARD TO TELL FROM THE PICTURE IF IT IS INDEED A ZIROLI. IT COULD BE A BYRON, AS BYRONS PURRPOWER USES A 4.2 SAX. AS FAR AS GRUMMAN GO'S, I HATE TO BURST BUBBLES, BUT CHANCE VOUGHT, A REAL MANS NAME, DESIGNED WINGFOLD BACK IN 1938 WITH THE BENTWING BIRD. ALSO KNOWN AS WHISTLING DEATH. YOUR ANALYSIS IS CORRECT ABOUT THE A6M ZERO. THE F6F HELLCAT COULD OUT MANUEVER, OUT CLIMB, AND OUT SHOOT THE HOWARD HUGHES DESIGNED ZERO. THE F6F HELLCAT ALSO USED THE SAME LANDING GEAR CONFIGURATION AS THE F4U CORSAIR. WONDER WHERE GRUMMAN GOT THAT IDEA?