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Hello Micdrow, thank you for posting this!
Where/who is this from?
Man are you patient
I spent just over an hour there and did not find a thing (except a TAIC report you had already posted)
http://translate.google.com/transla.../siryo/frank.htm&langpair=ja|en&hl=en&ie=UTF8TAIC reports on the preliminary flight evaluations of the N1K1-J and the J2M3 aircraft which were captured in the Philippines, repaired by the Technical Air Intelligence Unit at Clark Field, and flown briefly by an Allied pilot do exist.
The report on the N1K1-J (S 7) is in TAIC Summary No. 33, July 1945. The report on the J2M3 (S 12) is in TAIC Summary No. 34, August 1945.
No similar report by the same TAI unit on the preliminary flight of the Ki-84s captured in the Philippines was published. A report about the flights of the Ki-84s (S 10 and S 17) was probably being prepared for future publication by the Technical Air Intelligence Center when the end of the war put an end to the publishing of any further TAIC Summary Reports.
A couple of Ki-84 aircraft got shipped to Wright Field's T-2 staff organization at the end of the war. One of these planes (AAF Serial Number T2-302) was studied and test flown under Project No. NAD-25. Some reports were written, of which I have a copy in Japanese of Interim Report No. 2, Ki-84 I Frank Pilot's Handbook and a copy in English of Interim Report No. 3, entitled Excerpts from T-2 Report on Frank-1 (Ki-84).
Interim Report No. 2 is 19 pages long and in the Japanese language with some English mixed in. Portions of the text are Katakana renditions of English words. I do not have a copy of the original report in English. The Japanese version is a translation of the Wright Field report. It is available on a Japanese website called War Birds by Ishibashi. Here's the link:
http://www.warbirds.jp/siryo/frank.htm to the Japanese version
And here is the link to a Google automatic translation to English:
Google Translate
Paul - perhaps you might be able to find these two docuents (bolded in the quoted text)?
Here is something I found and put into a PDF today.
It is the report on the Nakajima Ki 84 Hayate that was overhauled and tested at Middletown Air Technical Service Command.
I don't believe I have seen this posted here before, so enjoy!
- Ivan.
How in the world did they get 1970hp out of 2185CID only weighing 1800#??
How in the world did they get 1970hp out of 2185CID only weighing 1800#??
The problem with "good quality fuel" is that it may allow more boost/power than the engine can handle.Inline engines get similar power levels with less displacement but if you take into account the weight of the cooling system, obviously the advantage goes to the Homare engine. Maybe it had something to do with it running at a higher RPM than typical for a radial of this size.
Just speculating. I am no expert on engines.
It makes you wonder how far they could have gotten if they actually had good quality fuel.
- Ivan.