Here are plots of the total weight of fire, total muzzle power, and total number of rounds fired per second for a number of fighter aircraft. See the WWII fighters page for a discussion of these parameters.
If you have a browser that supports Java, you can see the interactive versions of these figures.
The four horizontal lines in each plot represent the firepower of, starting at the bottom, eight Browning .303 guns, six Browning .50 guns, four 20mm Hispano Mk.II cannon, and finally two 30mm MK 108 cannon.
This is a plot of the total fired weight per second vs. the year of production fighters.
Here is an other parameter, total muzzle power in kilowatt.
And finally, the number of rounds fired per second.
visitors since 23 December 1998.