Bring the Ki.84-I Hayate "Frank" to Aces High

[Sikboy]

Originally posted by straffo


btw I'm searching a source for the comparing Japaneses claim vs reality anyone having some references for me ?

Therein lies the riddle of the Hayate...

Post war flight tests in the US showed the Hayate to be even better than the Japanese tests. While I've never personally seen any of the test data, the general conclusion is that the variation in data was the result of super high octane fuel used in the US, which the Japanese didn't have access too.

It seems to me that no matter which way HTC were to model the plane, people are going to complain. If it matches Japanese tests, some will want it boosted to the US figures. If it matches the US figures, some will want it "neutered" to the Japanese figures. If they split the difference, both sides complain.

And this assumes that whatever data/information standards that HTC uses are met with the available resources.

I would love to see the Hayate, but I'm glad it's not my job to model it.

-Sik

[Staga]

Higher octane itself doesn't bring any additional power without higher manifold pressure.
Did americans use higher MAP than Japanese did in their tests?

[Sikboy]

Originally posted by Staga
Higher octane itself doesn't bring any additional power without higher manifold pressure.
Did americans use higher MAP than Japanese did in their tests?

I really have no idea, I'm just throwing out some hear-say. Ultimately, no matter what the cause, there seems to be two widely varyinig data sets out there.

-Sik

[Kweassa]

Ki-84-Ia with JP specs seem to be the only reasonable choice.

 If the plane is a representation of the war-time machine which fought in the many battles, then I think none other than its original specs should be used.

[Karnak]

Obviously the Ki-84 will be modeled with Japanese grade fuel, just as the N1K2-J is.

If you have Il-2:FB and want to play with a Ki-84 modeled on the US speed data (and made up fantasy data for roll rate) download the newest patch.  It has the Ki-84-Ia with 100 Octane fuel.  It also has the A6M5a and P-51D as flyable.

IL-2:FB's Ki-84-Ia hits these speed numbers:

At Sea Level: 584 kph (362 mph)
At 6,100m (20,000ft): 687 kph (426 mph)

The Ki-84 in IL-2:FB is probably the best pure fighter in the game.


Staga,

For whatever reason the US flight tests of the Ki-84 obtained much higher speeds (especially at altitude) than did the Japanese tests.  The initial production version of the Ki-84 topped out at 388mph in Japanese tests.  A version with a slightly more powerful version of the Ha-45 engine hit 392mph and is the one we see most often in sims.  The most common Ki-84 version had the Ha-45-21 which had better altitude performance.  I have never seen Japanese test data for this version, but given that it was the most common version it is likely the US tests were done on a Ki-84 with the Ha-45-21 engine.  My guess is that the Ki-84 with the Ha-45-21 engine topped out at slightly over 400mph when using Japanese fuel.  Hence my signature.


I recall one wartime story of a P-51 pilot looking over a radar operator's shoulder as they were tracking an inbound contact and the pilot telling the radar operator to not even bother ordering a scramble as it was a Frank, which he ID'd by the speed at which the contact was moving.

I have no idea if theis story is true or not as it was posted on this BB a long time ago and that is my only source.

[Red Tail 444]

Well wasn't the Ki-84 the fastest prop plane in PTO below 7k? Or was that based on US fuel?

seems so

[NoBaddy]

Originally posted by Sikboy

It seems to me that no matter which way HTC were to model the plane, people are going to complain. If it matches Japanese tests, some will want it boosted to the US figures. If it matches the US figures, some will want it "neutered" to the Japanese figures. If they split the difference, both sides complain.
 

Sik...

You do have a way with understatement .

[Sikboy]

Originally posted by Karnak
Obviously the Ki-84 will be modeled with Japanese grade fuel, just as the N1K2-J is.

While I personally agree with you, does this mean that there are post war US tests giving the N1k2 heightened performance?

-Sik

[Mitsu]

Now I can hear everyone says to me "ki84 dweeb" in AH V2.0!!!

[Red Tail 444]

Originally posted by Mitsu
Now I can hear everyone says to me "ki84 dweeb" in AH V2.0!!!

Yup, and I'll be right beside ya!

[Mitsu]

So HTC...Isn't Ki-84 the first new plane for V1.2?

[DYGCaps]

<---Frank Fan

Bring it to AH...Pleaseeeeeeeeeeeeeeee

[Mitsu]

I can't wait to see that HTC releases beautiful Ki-84 in AH2 and skin makers post great skins.

[Kweassa]

Bring the Ki.84-I Hayate "Frank" to Aces High!!!!

[Masherbrum]

Originally posted by Karnak



The best fighters of Germany, Italy, Russia, the United Kingdom and the United States have all been added.  It is time for the Ki.84-I to be added to Aces High.

Bring the I.A.R. 80 to AH.

Karaya