Author Topic: Ki84 quote from O.Maddox (Read 1251 times)

gatt · « **on:** November 12, 2004, 07:14:16 AM »

http://forums.ubi.com/eve/ubb.x?a=tpc&s=400102&f=63110913&m=5061038042

Quote

Great thanks to Japanese guys who send me original Japanese trial reports and translated it for me. That info is absolutely increadible: Say we now know that probably all original Japanese reports of maximal preformance for Japanese planes that have co-called over-boost in Japanese docs is present without that over-boost! Interesting, isn't it?

Hmmm, would be interesting to take a look at those docs just to know if our "WEPless" Ki84 is correctly modeled.

eddiek · « **Reply #1 on:** November 12, 2004, 07:54:14 AM »

note the keyword, "probably"?
I hope someone finds test data with more specifics, such as MAP settings, engine RPM, etc...
The debate about the Hayate is getting stale.
Pyro also has someone who has translated the Japanese text over to English, I guess the difference is in how the data was translated?

gatt · « **Reply #2 on:** November 12, 2004, 07:57:00 AM »

I wonder if they are the same docs and yes, checking translations should not be easy

Anyway, the issue is really interesting.

joeblogs · « **Reply #3 on:** November 12, 2004, 08:03:16 AM »

I think I could arrange that.

-Blogs

Quote

Originally posted by gatt
I wonder if they are the same docs and yes, checking translations should not be easy

Anyway, the issue is really interesting.

Karnak · « **Reply #4 on:** November 12, 2004, 10:07:29 AM »

I cannot make heads or tails of what he is trying to say.

moot · « **Reply #5 on:** November 12, 2004, 11:59:55 AM »

Say we now know that probably all original Japanese reports of maximal preformance for Japanese planes that have (s)o-called over-boost in Japanese docs is present without that over-boost!

All "maximal performance numbers" in Original docs that are so-called with boost, are actually figures resulting from operation without boost?

Karnak · « **Reply #6 on:** November 12, 2004, 12:28:13 PM »

OK, but is there any evidence that the Japanese used a WEP equivilent? That is what we really need.

Mitsu · « **Reply #7 on:** November 12, 2004, 12:31:37 PM »

Most of Japanese planes didn't have WEP like German MW-50 etc.
But they have over-boost lever in the throttle for getting Emergency Power.

Staga · « **Reply #8 on:** November 12, 2004, 12:40:05 PM »

I seem to remember a pic of Japanese fighter's nose without some cowlings and it had a tank behind the engine for water (-methanol?) injection.

StarOfAfrica2 · « **Reply #9 on:** November 12, 2004, 01:37:28 PM »

Best I could make out from Busa's posts was that some had it, some didn't. I'm just guessing, but more than likely the later models of these planes did, as at the end of the war the Japanese developers were desperately trying to find ways to get the fighters up to the level of the B-29s that were devastating their homeland. Even the N1K line was slated for a 3-stage supercharger mounted on a Homare 44 engine towards the end, but it never made it into production. The only planes that ever really had much success getting up there and catching the B-29s (if my memory is correct) were the Raiden fighters. Even they had limited success.

http://www.warbirdsresourcegroup.org/IJARG/j2mraiden.html

Some stats on the "Jack"

StarOfAfrica2 · « **Reply #10 on:** November 12, 2004, 01:54:56 PM »

What I find interesting is that the Raiden had very similar top speed and climb rate to the Hayate, while the Shiden (the only one of the 3 that I believe had WEP like we understand it) was rated almost 20 mph slower. Makes me wonder if they had hit a wall in the design dept?

I understand from what I have read that the Raiden handled like a truck (of course this comes from pilots used to the Zero) and they had very high numbers of trainees lost in crashes in it (although one of the top aces flew this plane).

Karnak · « **Reply #11 on:** November 12, 2004, 02:15:47 PM »

I understand the Ki-44 was also able to intercept B-29s.

American pilots who tested the J2M Raiden after the war thought it handled wonderfully.

StarOfAfrica2 · « **Reply #12 on:** November 12, 2004, 03:11:04 PM »

Quote

Originally posted by Karnak
I understand the Ki-44 was also able to intercept B-29s.

American pilots who tested the J2M Raiden after the war thought it handled wonderfully.

I dont know on the Ki-44. Heck, I've seen where some guys actually wrestled zeros up to alt and shot at B-29s. They used what they had. Although technically interception was the job of the IJA not the IJN.

I'm sure American pilots would be more comfortable in the Jack. I did make the disclaimer that the comments I saw were from Zero pilots. After what they were used to the Raiden was probably a bit on the heavy and stiff side.

brady · « **Reply #13 on:** November 13, 2004, 10:11:02 AM »

Very Interesting, cant wait to see whear this goes.

Mitsu · « **Reply #14 on:** November 13, 2004, 02:34:15 PM »

The Jack would be another Japanese La-7.