Originally posted by Badair
One of the late model zeke's with 4 20mm's would be cool too
A little late for this but I think I found what you were talking about, I was looking at some specs of the Zero and found that there was prototype A7M's built. The one I beleive you meant was the A7M2. There was never close to enough of these made to think about adding them but I thought it was interesting and wanted to clear that up.
Powerplant...One Mitsubishi MK9A eighteen-cylinder air-cooled radial rated at 2,200 hp for take-off, 2,070 hp at 1,000 m and 1,800 hp at 6,000 m, driving a four-blade constant-speed metal propeller.
Armament... Four wing-mounted 20 mm Type 99 Model 2 cannon.
External Load - Two 250 kg bombs or two 350 litre drop tanks.
Dimensions...Wing Span - 14.00 M
Length - 11.00 M
Height - 4.28 M
Wing Area - 30.9 M(squared)
Weights..Empty - 3,226 Kg
Loaded - 4,720 Kg
Wing Loading - 152.9 Kg/M(squared)
Power Loading - 2.1 Kg/Hp
Performance...Max Speed - 339 Knots at 6,600 M
Cruising Speed - 225 Knots at 4,000 M
Climb Rate - 6,000 M in 6 Min 7 Sec
Service Ceiling - 10,900 M
Production...7 A7M2 prototypes and Service trials aircraft.
There was also some other interesting ones such as the A7M3-J with an armament of Two fuselage-mounted oblique-firing 30 mm Type 5 cannon and four wing-mounted 30 mm Type 5 cannon(HO machine?) or the A7M3 with an armament of Six wing-mounted 20 mm Type 99 Model 2 cannons. I'm not going to type the rest of the specs for these planes as well as it would just take way to long but you can get them
"here."