Official Fulqrum Publishing forum - The Spit IA should have a Constant Speed Prop

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- - The Spit IA should have a Constant Speed Prop (http://forum.fulqrumpublishing.com/showthread.php?t=21066)

Quote:

Originally Posted by winny (Post 259455)

I see.. I have the same book. ( I got very lucky and found it in a charity shop for £5)

So it looks like a CSP but dosn't behave like one. Are you sure it is a CSP? And how do you tell the difference? (genuine question, not sarcastic.. just incase you start getting all spikey again...)

The spinner of the De Havilland (2-pitch or csp) and Rotol (csp) propeller look different.

http://spitfiresite.com/2010/06/batt...ropellers.html

http://spitfiresite.com/wp-content/u...propellers.jpg

Quote:

still from 1940 newsreel showing a mixture of Rotol (recognisable by their blunt spinners) and de Havilland propellers employed on first-line Spitfires during the Battle.

Devs have been informed directly of a number of issues (mechanisation and graphical) on relation to DH and ROTOL props on the Spitfires.
This includes the option of DH 2 pitch VP, DH CS props converted from 2 pitch. ROTOL CS props.

Hopefully where its going is this:

Spitfire I DH 2 pitch VP
Spitfire IA DH CS
Spitfire IIA ROTOL CS (i.e. as it is now)

Engine differences between the Merlin III and Merlin XII, 100 Octane usage have been fully documented and are with the Devs.

As Jonsey says "Dont panic ... dont panic" :)

Quote:

Originally Posted by 41Sqn_Banks (Post 259512)

The spinner of the De Havilland (2-pitch or csp) and Rotol (csp) propeller look different.

Thanks, for some reason I always associate the blunt ones with the wooden 2 blade prop.

Quote:

Originally Posted by IvanK (Post 259536)

Hopefully where its going is this:

Spitfire I DH 2 pitch VP
Spitfire IA DH CS
Spitfire IIA ROTOL CS (i.e. as it is now)

Sounds great. Mission builders should have the Spitfire I DH 2 pitch VP for early war scenarios and the two other for BoB scenarios with CSUs.

Note: pilot armor was introduced to Spitfires at around mid-June 1940, there were none equipped so at the start of the Battle of France/Dunkerque, so optimally the 2-pitch ones should get a corresponding graphical and DM update (i.e. no armor).

Same goes to Hurricanes, iirc four Squadrons had pilot armor installed on 10 May 1940.

Quote:

Originally Posted by IvanK (Post 259536)

Great news. The inclusion of the variable pitch and CSU MkI's will really flesh out the Spitfire range and make a lot of people (including me) happy.

Hopefully a lot of the work has been done so we get our early Mk1's before we start needing MKV's!

Cheers!

Quote:

Originally Posted by IvanK (Post 259536)

Good news. Just a note that might have been overseen: according to pilot's notes general 2nd edition the 20° props (i.e. DH mod. to CSP) don't have enough pitch range and may cause to high rpm in a dive with very high speed. 35° props (i.e. Rotol) don't have that problem.

http://www.scribd.com/doc/40498672/A...dition-UK-1943

Page 44.

Quote:

Originally Posted by *Buzzsaw* (Post 258821)

Salute

The fact the game has the Spit IA with a two speed prop is completely in error.

Yes, they INITIALLY came from the factory with the two speed prop, but this was changed starting in late June 1940 on orders from Fighter Command's Hugh Dowding.

"Spitfire: The History" by Eric B Morgan and Edward Shacklady is one of the most well respected sources for information on the Spitfire. The facts are detailed clearly in the chapter on the Spit I:

EDIT:

Unfortunately some anonymous person has complained to Image Shack that the images I posted were copyright, and they have been removed. I wonder who might be interested in censoring information which shows there should be an improvement in Spitfire performance... ;) In any case, anyone who wishes to know the facts regarding De Havilland's upgrade of the Spit I's propellors from two speed to Constant Speed only has to examine the book, pages 53, 54, 55, and 56.

To quote from the book:

(there is also a little info on 100 octane fuel, but the best material there is to be found in the original files)

http://img263.imageshack.us/img263/6159/42873216.jpg

http://img217.imageshack.us/img217/1821/82710803.jpg

http://img830.imageshack.us/img830/6168/94305516.jpg

http://img198.imageshack.us/img198/1002/68176078.jpg

http://img269.imageshack.us/img269/4729/79585770.jpg

By the way, Kurfurst has already admitted he owns this book, yet he goes on about how the two speed props are appropriate...

ok first of all

the spitfire Ia back in time during the Battle of Britain had a
VARIABLE PITCH PROPELLER
The same EXACTLY THREE BLADE VARIABLE PITCH PROPELLER HAD and the IIa
The CONSTANT PITCH PROPELLER introduced to the SPITFIRE IIb model:-)
also what is going on with the antiallising anybody found any solution or what

Quote:

Originally Posted by skouras (Post 260291)

rubbish.

Quote:

Originally Posted by fruitbat (Post 260299)

rubbish.

so i'm wrong:rolleyes:
one good example is the A2A Spitfire with Accusim:-)

Quote:

Originally Posted by skouras (Post 260315)

so i'm wrong:rolleyes:
one good example is the A2A Spitfire with Accusim:-)

by the time of the BoB yes you are.

dunkirk, yes, BoB no. in the Bob they were all constant speed, a mix of DH and Rotol.

by the way, only diff bewteen a b and an a is cannons, nothing else.

why don't you read some of the many links in this thread.

I'm looking at a spitfire test done at boscombe down in march 1940, in which the spit mk1 had a rotol prop, N3171, right now, which i take to be more accurate than your computer game ref material.