Fth - 109g-14

[Bruno]

It seems that the 109G-14 speed maybe off.

According to information established in this thread:

109 performance notes

It would appear that the G-14 is slow.

FTH for the G-14 should be 5000m (16400ft).

Here are the results of my level speed tests (see the linked thread others have confirmed them)

I just ran some quick level speed tests for the G-14:

AH2 BF 109G-14 level speed tests

100% Fuel, FBM = .001 (minimum; no fuel burn)

1 x 1 MG151/2cm 150 rounds

100ft

WEP - 350 mph
MIL - 320 mph

5000ft

WEP - 369 mph
MIL - 340 mph

10000ft

WEP - 379 mph
MIL - 357 mph

15000ft

WEP - 388 mph
MIL - 366 mph

16400ft (FTH?)

WEP - 390 mph
MIL - 370 mph

20000ft

WEP - 397 mph
MIL - 377 mph

24500ft

WEP - 388 mph
MIL - 378 mph

At 16400ft the AH G-14 only reaches a max of 390mph, this should be FTH and a max speed of 410-415mph 1.7ata 2800rpm). The AH G-14 reaches its top speed at 21000ft (just under 400mph).

568km/h (352mph) 1740ps @ SL
665km/h (413mph) 1700ps @ 5000m (16400ft)

This is supported by several sources in the linked thread:

First on MW's Spitfire site:

Spitfire Mk XIV versus Me 109 G/K A Performance Comparison

Scroll down to the chart, look at the curve for the 109G-6/R2 (essentially a G-14)

Next Crumpp provided this:



Finally Kurfürst provided this (G-6/R2):



Note:

The speed curve (2) for MW50 max power, the climb curve unfurtunately only for 30-min Kamfpleistung 1.3ata. The rest of the data on the chart is basically the same as the doc Crumpp just posted. (Dashed 3) seems to show normal G-6 (or G-8 recce) performance at 1.42ata.

[Bruno]

One other thing, just so we are clear about what a G-6/R2 is:

The G-14 is mentioned in Mtt meetings minutes as the official name of the G-6/MW50 designation which was used internally by Mtt for the G-6 equipped with the MW-50 system (previously used on the recce G-6/R2 variant).

[Kurfürst]

How about climb rate? It should be around 23m/sec at SL with WEP, radiators half closed, 100% fuel. Any in-game testing for that?

[Bruno]

I will test it later today when I get home...

[Pyro]

Ok, I'll take a look at changing that.

[gatt]

Bruno,
where did you get the info that max speed of the G-14 should be at 16,400ft?

[Bruno]

In the documents / linked above and in other literature/ sources. Most provided by others.

If you look at the document Crummp posted you see in the center G-14/U4 (G-14 with MK 108)  Jäger (Fighter)...

scroll down until you see these numbers(almost to bottom):

568 1740 --- Emergency Power SL
665 1700  5.0 --- Emergency Power 5,000m

You can also verify that with the chart on MW's page and the chart  Kurfürst provided. These show curves for a G-6/R2 (armed Recce variant; G-6 + MW50) The G-14 'name' was originally used internally by MTT to describe the G-6/R2. The G-14 name was kept by RLM to describe the fighter variant of the G-6 + MW50. There's hardly any difference between the fighter G-14 and recce G-6/R2. If anything the G-6/R2 will have slightly worse performance due to cameras etc.

FTH for the DB605AM is 5000m above that the SC is loosing power and boost will drop. It will no long be necessary to use MW50 above FTH to prevent fuel detonation. All MW50 does is cool the charge and allow for higher boost at and below FTH by preventing the fuel from detonating. Above FTH MW50 will still provide charge cooling and a slight power increase of about 4% over a say a G-6 (no MW50) at the same boost. So the G-14 will be slightly faster then the current G-6 above FTH on Emergency Power.

FYI:

FTH for the G-14/AS (DB605ASM; larger DB603 supercharger) is 680km/h at 7500m.