ORIGINAL: Nikademus
ORIGINAL: Tristanjohn
[I own Lundstrom's stuff and I've read Frank closely. I sure don't recall either one of those historians billing the Betty as anything other than what it was: a flimsy bomber that was very prone to explode when tracers got at its gas tanks. The rear gun was okay but as long as pilots avoided rear approaches they were more than okay.
Then you didnt' read the books very carefully. A G4M was flimsy compared to a B-17. However they did not go down in droves per short burst as is often assumed by people whenever they entered combat.
Bettys tended to explode when tracers got into their gas tanks, that's what I wrote and that's what both Frank and Lundstrom wrote.
Do I need to go into Lundstom's Guadacanal book and quote chapter and verse? And is that the only author you have confidence in? This stuff is written all across the wide breadth of World War II history. It is no secret. It is
common knowledge. Why do we have to have these arguments?
The only true limiting factor on shooting down Bettys (assuming one caught them--they had decent speed) was the limited ammo carried, on F4Fs especially.
Such a statement could be said of any fighter aircraft when attacking a target.
No, it could
not be so stated, at least not accurately.
One of the limiting factors for Japanese fighters versus B-17s (or mediums like the B-25 for that matter) was the rugged quality of construction of these Allied aircraft as much as anything else. Add to that the relatively weak firepower of most of Japan's fighters (all of its early-war Navy fighters) vis-a-vis the sturdily-built bombers flown by the Allies. In point of fact the A6M2's MGs (7.7mm Type 97) were unsuited even for fighting the Wildcat much less a B-17, and its 20mm cannon was both slow-firing and inaccurate.
While we're at it, let's keep in mind the Japanese Army and Navy used different weapons and different ammunition. There was little cooperation between these two services, they went their own separate ways when it came to weaponry, and as a result the Japanese military had more types of guns and ammunition in service during WWII than any other belligerent.
The Army's 20mm cannon was better, for instance. The Type 1 (Ho-5), which replaced the Type 97 (Ho-3) might have been Japan's best fighter gun in service. It was based on Browning's .50 technology and had a rate of fire of 850 rpm (up from 400 rpm) with a muzzle velocity of 750 m/s, not completely bad. (By the way, that muzzle velocity represented a drop of 70 m/s from the Ho-3's 820 m/s due to the cartridge case being reduced from 125mm to 94mm in an effort to save weight. So there was a compromise in that respect.)
The IJN started the war with the 20mm Type 99 Model 1, a derivative of the Swiss Oerlikon F. This fired a heavy projectile but with a low rate of fire (490 rpm), and also a low muzzle velocity (555 m/s) which meant it didn't have much pentrating power. It was also innaccurate beyond 80 meters or so due its poor ballistic characteristics. A better variant of this gun was the Model 2. For this weapon the Japanese used the Swiss Oerlikon L as its starting point of development. It employed a bigger cartridge case (101mm long instead of the 72mm of the Model 1) and a longer barrel, which increased accuracy, plus the muzzle velocity was raised to a more acceptable 750 m/s. (And I believe they even increased the rate of fire of this weapon later in the war, but that's another matter.)
The thing is, the Type 99 Model 2 didn't come into service until the A6M5's arrived.
Meanwhile, F4F-4 Wildcats were armed with six very reliable Browning .50 M2 MGs (750 rpm, 870 m/s) which had superb hitting power and excellent ballistic characteristics and so they accurately poured a lot destructive firepower into targets at long range and tended to rip up whatever air object Japanese that was struck. There are accounts of entire wings being shaved off Bettys and Zeros from this .50 Cal fire--hell, there are
pictures of this happening. Go watch the Military Channel one night.
Anyway, the Allied .50s were extremely destructive weapons--in fact, these are still in service today, and for both the M2 and M3 models. (The latter, developed after the war, increased the rate of fire to 1200 rpm.)
So, we have better Allied weaponry firing at relatively flimsy Japanese aircraft versus worse Japanese weaponry firing at Allied aircraft of much superior construction.
Is the image clearer?