Author Topic: So is the G-14 top speed going to be fixed?  (Read 4888 times)

Offline Kweassa

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So is the G-14 top speed going to be fixed?
« on: March 22, 2006, 02:45:46 AM »
Seemed like every one was hesitating to ask the question, so I thought I'd take the role and get it over with :) .

 Will the G-14 top speed be fixed?

 At first, I thought it was a minor glitch or a bug. But then I realized that the HTC in-game charts also specify the G-14 as having 406mph top speed - which gives out the impression that the dataset HTC has chosen to be used for the G-14 is suggested that speed. If it was a minor glitch or a bug, then I would presume the in-game charts would be showing 414mph, but the plane for some reason was not reaching that speed - which in this case, is not.

 In other words, I am quite worried that Pyro made his call, and that call is '406' instead of '414'. I asked HT about this when he was in the MA (politely, of course) and HT answered that he didn't know much about it, and it was Pyro's call.

 
 So is it going to stay this way?

 Or are there plans on revising this problem?

Offline gatt

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So is the G-14 top speed going to be fixed?
« Reply #1 on: March 22, 2006, 03:07:08 AM »
Yes, it'd be nice to know if the new G-14 performance is based on hard data we dont know.
"And one of the finest aircraft I ever flew was the Macchi C.205. Oh, beautiful. And here you had the perfect combination of italian styling and german engineering .... it really was a delight to fly ... and we did tests on it and were most impressed." - Captain Eric Brown

Offline Porta

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So is the G-14 top speed going to be fixed?
« Reply #2 on: March 22, 2006, 04:28:13 AM »
For what is it worth:



This is the same chart that appears in sheet GL/C-E 2 Nr. 7536/44 of 20.8.44. There it's said to be data from manufacturer, but I think it's from E'Ste-Rechlin (the Kampfleistung curve is from Rechlin measurements on Bf 109 G-6 W.Nr. 15210).

Offline Kweassa

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So is the G-14 top speed going to be fixed?
« Reply #3 on: March 22, 2006, 05:50:48 AM »
So our1944 Bf109G-14 with a DB605AM, is supposed to do only 652km/h (405mph) at alt? ...

 Man.. that's depressing. That's roughly the same speed as our Bf109G-2.

Offline gripen

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So is the G-14 top speed going to be fixed?
« Reply #4 on: March 22, 2006, 05:59:53 AM »
That chart appear to be at least partially calculated (despite "erflogene" claim), probably just the peaks at 1,3ata/2600rpm are flight tested (at FTHs). The curves show untypical shape for hydraulic coupling and another oddity is MW 30 claim.

gripen

Offline Bruno

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So is the G-14 top speed going to be fixed?
« Reply #5 on: March 22, 2006, 08:01:38 AM »
From the old thread:

109 performance notes

Quote
BPNZ

Hi Everyone,
I've got a data chart showing the G14 having the same speed as the G6/R2, both with DB605AM engines:

568km/h (353mph) @ SL
665km/h (413mph) @ 5000m

Felix99

From Datenblatt A/IV/141/44, and charts A/IV/142/44 and A/IV/144/44, for the G-14/U4 w. 605AM

At Take-off and Emergency setting:
557km/h (346mph) @ SL
652km/h (405mph) @ 5000m

At Climb and Combat setting:
486km/h (301mph) @ SL
619km/h (384mph) @ 6600m


665km/h at FTH Bf-109G14/U4 with  clean configuration weighing 3318 kg.

652km/h at FTH Bf-109G14/U4 with Gondolawaffen  (gondolas) weighing 3501 kg

G-14 Bug Thread

Offline elkaskone

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So is the G-14 top speed going to be fixed?
« Reply #6 on: March 22, 2006, 08:07:18 AM »
Really unfortunate that the takeoff weight is not indicated in the document!
The same speed on the deck, but slower between 1000m and over it!
Maybe with external tank, but speed on the deck to high, i dont think so!?
The "Kampfleistung" looks identically with the other 109G14 document!
But 109G6 speed with DB605A at "Kampfleistung" is a little bit faster!

- Performance Statistic by GLZM August-November
Me109G6 mit DB605A 1310PS - 0m Kampfleistung, 3196kg
0m 510km/h
6600m 630km/h
Me109G6 mit DB605A 1475PS - 0m Notleistung, 3196kg
0m 530km/h
6600m 640km/h


- Performance Statistic by GLZM August-November
Me109G6AS mit DB605AS 1275PS - 0m Kampfleistung, 3221kg
0m 500km/h
8800m 648km/h
Me109G6AS mit DB605AS 1435PS - 0m Notleistung, 3221kg
0m 520km/h
9000m 660km/h


- Performance Statistic by GLZM August-November
Me109G6/R2 mit DB605AM 1240PS - 0m Kampfleistung, 3320kg
0m 498km/h
6600m 628km/h
Me109G6/R2 mit DB605AM 1800PS - 0m Notleistung, 3320kg
0m 569km/h
5000m 666km/h


- Vergleich Me109G14/ASM - Me109G14/U4 - Me109K4
Me109G14/ASM mit DB605ASM 1250PS - 0m Kampfleistung, 3272kg
0m 490km/h 1210PS
8800m 645km/h 1140PS
Me109G14/ASM mit DB605ASM 1800PS - 0m Notleistung, 3272kg
0m 560km/h 1740PS
7500m 680km/h 1495PS


- Vergleich Me109G14/ASM - Me109G14/U4 - Me109K4
Me109G14/U4 mit DB605AM 1240PS - 0m Kampfleistung, 3318kg
0m 498km/h 1200PS
6600m 628km/h 1240PS
Me109G14/U4 mit DB605AM 1800PS - 0m Notleistung, 3318kg
0m 568km/h 1740PS
5000m 665km/h 1700PS
« Last Edit: March 22, 2006, 09:06:54 AM by elkaskone »

Offline hammer

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Re: So is the G-14 top speed going to be fixed?
« Reply #7 on: March 22, 2006, 08:17:30 AM »
Quote
Originally posted by Kweassa
...I realized that the HTC in-game charts also specify the G-14 as having 406mph top speed -


Kweassa, where are the in-game charts you mention?
Hammer

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Offline elkaskone

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So is the G-14 top speed going to be fixed?
« Reply #8 on: March 22, 2006, 08:26:20 AM »
MW30 is the key to that document, i hope!

- It meens 30% Methanol to 70% Wather!
- And the normal MW50 has 50% Methanol to 50% Wather!

Offline Bruno

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So is the G-14 top speed going to be fixed?
« Reply #9 on: March 22, 2006, 08:26:46 AM »
Quote
Kweassa, where are the in-game charts you mention?


When in game go to hangar, select the plane, right click then 2/3rds the way down the pop menu you will see speed chart / climb chart, just click on either...

Offline Bruno

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So is the G-14 top speed going to be fixed?
« Reply #10 on: March 22, 2006, 08:31:28 AM »
Quote
Originally posted by elkaskone
MW30 is the key to that document, i hope!

- It meens 30% Methanol to 70% Wather!
- And the normal MW50 has 50% Methanol to 50% Wather!


Would that make a difference? From my understanding the water/methanol mixture is injected into the eye of the SC where it evaporates cooling the charge. This allows for high boost by reducing detonation. I assume the methanol will help with evaporation but wasn't it mostly there to prevent the water from freezing at altitude?

How would the 20% difference in methanol impact speed?

Offline elkaskone

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So is the G-14 top speed going to be fixed?
« Reply #11 on: March 22, 2006, 08:46:08 AM »
Quote
Originally posted by Bruno
Would that make a difference? From my understanding the water/methanol mixture is injected into the eye of the SC where it evaporates cooling the charge. This allows for high boost by reducing detonation. I assume the methanol will help with evaporation but wasn't it mostly there to prevent the water from freezing at altitude?

How would the 20% difference in methanol impact speed?


Good question, i dont know, i can only speculate!
Maybe the useless time before the engine overheats,
from MW30 is shorter than MW50.
Sorry not enough input! :)
« Last Edit: March 22, 2006, 08:51:58 AM by elkaskone »

Offline elkaskone

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So is the G-14 top speed going to be fixed?
« Reply #12 on: March 22, 2006, 09:20:16 AM »
MW 50 is something of a misnomer, as it is actually a mixture of three fluids; 50% methanol acting primarily to achieve optimum anti-detonant effect, secondarily as an anti-freeze, 49.5% water, and 0.5% Schutzöl 39, an anti-corrosion additive. The similar MW 30 increased the water to 69.5 and decreased methanol to 30%. This increased the cooling performance but made it easier to freeze, intended to be used for lower-altitude missions.

http://en.wikipedia.org/wiki/MW50

Offline Wmaker

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So is the G-14 top speed going to be fixed?
« Reply #13 on: March 22, 2006, 09:42:52 AM »
Quote
Originally posted by Bruno
How would the 20% difference in methanol impact speed?


I don't think it could make a 20% difference but it might have a very small impact because methanol is higher octane than the fuel so it raises the octane level of the charge.
Wmaker
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Thank you for the Brewster HTC!

Offline phookat

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So is the G-14 top speed going to be fixed?
« Reply #14 on: March 22, 2006, 10:54:33 AM »
Water injection alone only cools the charge.  Methanol will both cool the charge and burn as fuel--but I don't think this fact alone would cause a power increase, since your power ultimately depends on how much oxygen you can stuff into the chambers.

Methanol is higher octane, so a greater percentage of methanol would allow higher MAP.  But, if MAP is the same between MW30 and MW50 charts, then I would guess no power difference between the two.