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IL-2 Sturmovik: Cliffs of Dover Latest instalment in the acclaimed IL-2 Sturmovik series from award-winning developer Maddox Games.

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  #1  
Old 04-14-2011, 04:44 AM
JG14_Jagr JG14_Jagr is offline
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Default Prop Pitch Question

I was flying the Spitfire last night and had 2 Pitch settings.. 0 or 100% There was no incremental adjustment.. is there a setting I screwed up or was the model spit I''m using setup that way (was a MkIA IIRC)
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  #2  
Old 04-14-2011, 05:39 AM
LeLv30_Finwolf LeLv30_Finwolf is offline
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The model is correct. Early War Brittish planes (such as HC and SPIT) had fixed or dual-set props. Fixed being the one where there is absolutely no changing of the prop-pitch and dual-set the kind you were talking about (fine-coarse).

Bf-109 E and germans as a whole were far more advanced in the beginning of the war with adjustable (variable) prop-pitch and with fuel-injection allowing the plane to do negative G's without choking the engine. (you might've noticed that if you push the stick in HC / Spit the engine chokes).

Later on, adjustable pitch became common in brittish (and other countries) planes as well.

Of the brittish (fighter) planes flyable in iCoD, HC with Rotol engine and Spitfire Mk IIa has adjustable pitch.

- Finwolf -

Last edited by LeLv30_Finwolf; 04-14-2011 at 06:01 AM.
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  #3  
Old 04-14-2011, 05:47 AM
*Buzzsaw* *Buzzsaw* is offline
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Quote:
Originally Posted by LeLv30_Finwolf View Post
The model is correct. Early War Brittish planes (such as HC and SPIT) had fixed or dual-set props. Fixed being the one where there is absolutely no changing of the prop-pitch and dual-set the kind you were talking about (fine-coarse).

Bf-109 E and germans as a whole were far more advanced in the beginning of the war with adjustable prop-pitch and with fuel-injection allowing the plane to do negative G's without choking the engine. (you might've noticed that if you push the stick in HC / Spit the engine chokes).

Later on, adjustable pitch became common in brittish (and other countries) planes as well.

Of the brittish (fighter) planes flyable in iCoD, HC with Rotol engine and Spitfire Mk IIa has adjustable pitch.

- Finwolf -
Completely wrong.

All British Spitfires with two speed de Havilland props were upgraded to Constant speed props by August 16th.

From "Spitfire, A History"

Quote:
Starting on Monday 24 June de Havilland engineers drove to the twelve Spitfire Stations, each carrying six conversion sets. On arrival the engineers asked for a picked crew of fitters who had to watch the de Havilland man convert an aircraft, instructing the RAF fitters at the same time. A second aircraft was then converted by the RAF crew with the engineer's help, and a third aircraft was completed with him supporting only. He then proceeded to the next station. By 16 August every Spitfire and Hurricane had been converted, including those in store.
The good news is that Luthier has said the Spit IA will be changed to a constant speed prop. It is actually right now graphically modelled with one, although as mentioned, the flight model has the aircraft with a two speed prop.

Last edited by *Buzzsaw*; 04-14-2011 at 06:11 AM.
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  #4  
Old 04-14-2011, 06:11 AM
reflected reflected is offline
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Quote:
Those Spitfires previously delivered with de Haviland 2 pitch airscrews were converted to constant speed units beginning in June 1940.
source:
http://www.spitfireperformance.com/spit1vrs109e.html

So during the Battle of Britain almost every Spitfire Mk.Ia had a CS prop. Which we don't have in CloD.

This is so wrong, please, please fix it!!!
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  #5  
Old 04-14-2011, 06:28 AM
LeLv30_Finwolf LeLv30_Finwolf is offline
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You're kinda right and kinda not. In 1939 they did convert the Merlin II engines in Spit I and HC I to Merlin III engine that allowed to fit either the de Havilland Hamilton three bladed two-pitch propeller, or a Rotol three bladed propeller (which was variable).

In iCoD there's modelled two HC (with DH 50 and ROTOL) - the DH 50 is the said two-pitch prop and the Rotol is the variable and they are modelled correctly.

Unfortunately I'm at work right now and I can't confirm this, but IF I remember right there was Spit Ia , Spit I and Spit IIa.
The Spit IIa for sure use variable prop-pitch as it has the Merlin XII.
But I can't remember if both or only the other of the Spit I has the dual-pitch.

Either way would be correct really... (as I think the current planes are intented to be the models of the beginning of the war (1939) not of the time of the Battle of Britain is fought (1940)).
I'm quite certain there will be more planes available - with the models of 1940 and variable pitch props on spits... and the later E-models and first F-models for the Bf-109 (that were present during the BoB).

- Finwolf -

Last edited by LeLv30_Finwolf; 04-14-2011 at 06:33 AM.
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  #6  
Old 04-14-2011, 06:56 AM
reflected reflected is offline
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I'm sorry but you're wrong.

There was no such thing as "Spitfire MKI"
or rather, all of them were MKI-s.
The letter was added when they fitted new wings with cannons:

Spitfire Mk.Ia: 8x .303 mgs
Spitfire Mk.Ib: 4x .303 mgs and 2x 20mm cannon

Therefore the lettering has NOTHING to do with propellors.

EVERY SINGLE Spitfire MKI was fitted with constant speed propellor between early June and late July.

I'm glad we have an early MkI with the 2 pitch prop but come on, there was none of these during the height of the battle!!!
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  #7  
Old 04-14-2011, 06:59 AM
41Sqn_Banks 41Sqn_Banks is offline
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IMHO they should change the names:

"Spitfire I" to "Spitfire IA (DH 5-20)"
"Spitfire IA" to "Spitfire IA (Rotol)"

just the way they named the Hurricane.
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  #8  
Old 04-14-2011, 07:08 AM
reflected reflected is offline
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Quote:
Originally Posted by 41Sqn_Banks View Post
IMHO they should change the names:

"Spitfire I" to "Spitfire IA (DH 5-20)"
"Spitfire IA" to "Spitfire IA (Rotol)"

just the way they named the Hurricane.
Precisely.
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  #9  
Old 04-14-2011, 10:30 AM
utu utu is offline
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see this video on the spit props, A2A made a very good work on his early Spit for FSX.
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  #10  
Old 04-14-2011, 10:30 AM
LeLv30_Finwolf LeLv30_Finwolf is offline
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Quote:
Originally Posted by reflected View Post

EVERY SINGLE Spitfire MKI was fitted with constant speed propellor between early June and late July.

I'm glad we have an early MkI with the 2 pitch prop but come on, there was none of these during the height of the battle!!!
And what year / battle are you talking about?
The game is NOT "starting/ending/contained" in Battle of Brittain - (with the exception on Single player "campaign").
Therefore it is perfectly "right" to have spitfires with dual-pitch prop as the game has planes of the 1939.

IF it would be 1940/battle of brittain - then Germans should have the later E-models and first F-models in use as well...

You fail to comprehend, that the timescale is not limited to 1940, but has planes from 1939 as well (and of course will have more on earlier and later dates).

It is true that by the time of Battle of Brittain (10 July – 31 October 1940) many of the spits / hc were refitted - however, the refitting ended in late July as the battle of Brittain started in early July - therefore the use of older props in spits/hc is correct.

And that is all I have to say, as this is no derailing from the original topic, which I believe was answered.

- Finwolf -
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