THE YEAR WAS
"Shooting Down Eve Corby"
Written by Bill Parker(writer), C. C. Beck(artist)
From Whiz Comic #3b - With a new weapon able to bring down aircraft, the Mask is going after new prototypes but one of his henchmen brings down the liner Eve Corby is on and she is again captured. Spy Smasher races to rescue her but even his gyrosub is a victim of the weapon.
Here are the pages I have of it.