Fiat G.50 performance...

[Rickusty]

Hi everybody.
As already stated in another thread, I tried to make some tests with the Fiat G.50 modeled in our new great sim.
Since I bought the game on March 31st, I've been trying to test all those gorgeous machines that we are now able to fly in CoD.

The Fiat G.50 especially seems really way off in regards to performance, compared to real-life tests and flight characteristics .

There are some issues that are somehow quite weird.

1 - Max engine power (WEP) seems to have been forgotten
The engine seems to run at really different values compared to the originale engine.
I have the original "instructions" for the engine in question: the Fiat A.74 RC 38 (from the Ministry of Aeronautics - 31 July of 193.

Now... On the first pages of this huge document, there are the "general characteristics" of the engine: I will write them down here.

Normal Height of operation ..... m 3800
Normal Power at Normal Height ..... hp 840
RPM ..... rds/min 2400
Manifold pressure ..... mmHg 790

Take-off
Rpm ... rds/min 2520
Manifold pressure ... mmHq 890
Power ... hp 870

Fast Cruise mode
Rpm ... rds/min 2400
Manifold pressure ... mmHg 700
Height ... meters 5000
Power ... Hp 750

Level flight at maximum speed (for a few minutes)
Rpm ... rds/min 2520
Manifold pressure ... mmHg 790
Height ... meters 4300
Power ... hp 840

Emergency conditions (that is... WEP.) - Only for a few minutes
Rpm ... rds/min 2520
Manifold pressure ... mmHg 890
Height ... meters 3000
Power ... hp 960


--------------------------

Now,when flying the G.50 in Cliffs od Dover one can see that :

1 - There is no "Emergency condition" settings for the throttle. (no WEP).
2 - Standard maximum throttle settings (at 4000 meters) in the game are:
- Max Manifold pressure is 700 mmHg
- Max RPM is 2300 rds/min

It looks as the max throttle settings is set to the "Fast Cruise mode", considering the Rpm (roughly the same) and the Manifold pressure (the same).
If that is the case, we're missing about 200 hp.

In-game characteristics are:
- Max level speed at sea level is about 350 km/h (IRL it could reach about 400 km/h)
- It has an average rate of climb of 6 meters/sec (!). IRL it was about 16 meters/sec.

The rate of climb is astonishing, especially considering that the rate of climb wasn't really too bad...
The fighter just doesn't climb.
Try to set a small battle against some Blenheims I and you'll discover that they can easily outclimb you.

Then there is another additional "big" problem.
Weight.

If you go into the "Plane" settings, you can see that a normal G.50, at 100% fuel, with its standard pair of HMG is overweight by 140 Kgs.

The maximum take-off weight is listed as: 2350 kg
The actual normal weight, fully loaded is: 2490kg

Cheers

[fruitbat]

since it never fought in the BoB, and will never appear in any of my missions i care less about this one!

but if its wrong, it does need to be addressed.

mainly for the med!

[madrebel]

i'd like to see that engine manual if you have it handy. This is the same engine in the mc.200 and re.2000 yes?

[madrebel]

Originally Posted by fruitbat

since it never fought in the BoB, and will never appear in any of my missions i care less about this one!

but if its wrong, it does need to be addressed.

mainly for the med!

italy committed:

13 stormo 38 BR-20s

43 stormo 27 BR-20s

18 gruppo 50 CR.42s

20 gruppo 48 G.50s

those all saw action in the BoB. they weren't exactly effective but they were in fact there and did in fact fly combat sorties, 883 to be exact.

[fruitbat]

i know the other Italian planes were there, but have never seen anything about the g50 in BoB myself. plenty of ref to the other 3 planes though.

happy to be proved wrong would like to know the source.

[madrebel]

http://comandosupremo.com/britain.html

Source: Italian Aces of World War 2 (Osprey Aircraft of the Aces No 34)

[Rickusty]

Hi Madrebel,
it's the same engine as in the Macchi C.200 "Saetta".
The Re.2000 had the Piaggio P.XI.

The manual is 215 pages, and 21 rather big cut-out schemes, power-band diagrams etc...
A rather thick volume. PM me for more info.

The Fiat G.50 was in fact in Belgium, but in practice a true engagement against British planes never happened. They really had a short range so...

The CR 42 fought as escort for the BR-20s, given their longer range and saw more combat.

[JG53Frankyboy]

Originally Posted by fruitbat

i know the other Italian planes were there, but have never seen anything about the g50 in BoB myself. plenty of ref to the other 3 planes though.

happy to be proved wrong would like to know the source.

http://www.dalnet.se/~surfcity/falco_bob.htm

[DC338]

Pity there is Belgian airfields in the game. Why model the planes if they have nowhere historical to operate from? Not a huge oversight, though it is odd. Why model italian aircraft that flew a total of 883 sorties, yet leave out the Do-17 and the E-4 it just doesn't make a lot of sense to me from a BoB sense, in a med campaign for the future I guess it does.

[fruitbat]

thanks for the links madrebel and franyboy, interesting read.

wow, only 3 of the g50's were equipped with radios

and the first operation of the g50 was on the last 'official' day of the BoB ( not that the pilots seemed to noticed from all there various accounts that i've read, lol).

but it was defiantly there!