Recent content by Hiromachi

Apologies for reheating this thread, but I found discussion very interesting and helpful in understanding a few things. So based on the above discussion and estimates, I was wondering what would be prop efficiency of that 13'11" unit used on F4U / F6F ? I've tried searching myself for the data...

Yes, there was extensive evaluation just like with the N1K1-J, Ki-61, Ki-44 and Ki-84. But scope of this evaluation was not the maximum performance (speed or rate of climb) but flying characteristics. The latter ones were of primary interest because allowed US pilots to exploit whatever flaw...

Awesome, thank you so much!

Also, forgot to mention the engine performance data. There are a lot of mixed information about Kasei 23 ko, however one of the Japanese publications (of Gakken Pictorial Series, also known as Gakken Rekishi Gunzo) some time ago published bits from J2M technical manual. Kasei 23 Ko is stated to...

May I ask on what do you base your assumption that the above graph is based on actual Jack 11 test ? In the very Introduction of the TAIC No. 1 (page 3 of the original document) it is stated that: "Except where otherwise stated, performance figures represent estimates of the Technical Air...

So is there any way of getting this> Experimental research on the effectiveness of ailerons and elevators, May 1937, by Aeronautical Research Institute, Tokyo Imperial University. Report No. 15n(46), USSBS Index Section 2 - 国立国会図書館デジタルコレクション ? As it says: "This material is not published on the...

This has been adressed by both Shinpachi and me quite a few times on this boards. Shinpachi even posted a table from A6M3 maintnance manual clearly indicating that A6M Zero load limit was 7 G with 1.8 safety factor. This applies equally to A6M2 and A6M5 models.

Sure, there is such possibility. But its as good assumption as any other.

I consider that as well. The problem is my nature, I just like to know both sides of the coin. And in this case we only know what Mr. John Tilley said, we dont know the point of view of that poor guy who got shot down. Maybe he was wounded ? Maybe his aircraft was damaged or exhibited unexpected...

I'm not leaving it Flyboyj, I am fully aware that good pilot will bring best of his aircraft and bad pilot will struggle with basics. But pilot skill is something hard to measure and harder to put into equation, thus a standard tests carried on captured equipment are a decent way to judge...

Since this was touched on the first page, few posts under OP, then I thought bringing US Army Air Force information would add to the discussion as well. Following is based on US Army Air Force Informational Intelligence Summary from May 10th, 1944. It provides a decent perspective on Type I...

Those things are relative, a bomber after bombing run is much lighter and pilots put their machines in a small descent to get away as quick as possible. That of course adds to the current airspeed and may prevent scrambling fighters from intercepting. On the other situation, Zeros may have no...

Japanese executed their dives at 60 degree angle and achieved 83 % accuracy in early 1942 battles in D3A. It does not necessarily mean steeper the better.

Did summer break for schools start this week in US or what ? Which adds exactly what to the discussion or review of the aircraft itself ? No fault of Ju-87 that it not always had escort.

1000+ HP radial screaming in a dive is loud enough. Besides, that's really least important factor. I think that in this area it matters more which one can cause a larger explosion (aka payload) and deliver it with greater accuracy to the target. To be fair any of those dive bombers is good and...