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View Full Version : Understanding Propellers in CEM


louisv
04-23-2011, 03:16 PM
http://www.youtube.com/watch?v=psYL7thQj6M
www.youtube.com/watch?v=UkGEWZo2lsM

bando
04-23-2011, 04:18 PM
Interesting.
Thanks!

Jughead Jones
04-23-2011, 04:31 PM
Yes, thanks much for this.

Flying Pencil
04-26-2011, 07:31 PM
The theoretical explanation is wanting, but the historical and observation is excellent.

BTW, it is not like someone had suddenly though of adding pitch change mechanisms before, it was very expensive to make.

Skiiwa
04-26-2011, 08:37 PM
More like this Please!!! This was very helpful!!!!!!!!

Dazzed DJ
04-27-2011, 08:29 AM
Thanks for that mate, found it very informative.

HFC_Dolphin
04-27-2011, 06:38 PM
Excellent video, making you wonder why 1C guys won't take the time to offer similar stuff to their community.

louisv
05-09-2011, 09:55 AM
A lot of people need this.

BRIGGBOY
05-10-2011, 12:13 PM
great vids and very interesting. they help me out quit a bit.

Gribbers
05-10-2011, 10:46 PM
Good stuff! Reminded me why i spent so long reading forums learning how to configure the Z-axis on my mouse when playing '46 :)

Sticky! Sticky! Sticky!

ATAG_Doc
05-10-2011, 11:34 PM
Excellent video, making you wonder why 1C guys won't take the time to offer similar stuff to their community.

I like it that you have to find out on your own. Says a lot about you.

Ivan Fooker
05-11-2011, 07:36 AM
Would it be possible than an expert could point out basic settings for the prop pitch to play around with and learn from?

sth like:

Start procedure : x ata -> y rpm -> z prop pitch
level flight:
landing:
combat:
climb:



................. to get best speed or best economic flight.

602Sqn.McLean
05-11-2011, 08:57 AM
I like it that you have to find out on your own. Says a lot about you.
Tell me, tell me, tell me

Kwiatek
05-11-2011, 03:46 PM
Sad that in COD variable prop pitch ( Spitfire MK1 - 2 stage and Bf 109 E) dont work like it should.

Unfortunately even prop pitch managment in COD is made in wrong way :(

louisv
05-11-2011, 04:48 PM
Sad that in COD variable prop pitch ( Spitfire MK1 - 2 stage and Bf 109 E) dont work like it should.

Unfortunately even prop pitch managment in COD is made in wrong way :(

How so ?

jt_medina
05-15-2011, 07:06 PM
Again

Don't bump posts like that.
I posted same video time ago, so if people don't care don't force them to listen.
http://forum.1cpublishing.eu/showthread.php?t=21554

Kwiatek
05-15-2011, 07:09 PM
How so ?

If you have variable prop pitch propeller ( like it was in 109 E and early Spitfire and Hurrciane - 2 stage prop pitch) for reach maximum speed you need set coarse pitch.

In COD for reach maximum speed you have to set fine pitch ( both for 109 and Spitfire and Hurrciane) which is wrong.

With gaining speed you should have to adjusted prop pitch from fine pitch to coarse settings.

So in COD variable prop pitch which used 109 and UK fighters dont work correctly.

Boogz
05-15-2011, 09:08 PM
If you have variable prop pitch propeller ( like it was in 109 E and early Spitfire and Hurrciane - 2 stage prop pitch) for reach maximum speed you need set coarse pitch.

In COD for reach maximum speed you have to set fine pitch ( both for 109 and Spitfire and Hurrciane) which is wrong.

With gaining speed you should have to adjusted prop pitch from fine pitch to coarse settings.

So in COD variable prop pitch which used 109 and UK fighters dont work correctly.

Strange, just took a hurry for a short test ride and at 6 000 feet, max throttle, it did app 220 mph at fine pitch and app 250 mph at course pitch.

Blackdog_kt
05-15-2011, 11:14 PM
If you have variable prop pitch propeller ( like it was in 109 E and early Spitfire and Hurrciane - 2 stage prop pitch) for reach maximum speed you need set coarse pitch.

In COD for reach maximum speed you have to set fine pitch ( both for 109 and Spitfire and Hurrciane) which is wrong.

With gaining speed you should have to adjusted prop pitch from fine pitch to coarse settings.

So in COD variable prop pitch which used 109 and UK fighters dont work correctly.

Strange, it works correctly for me. I start with fine pitch on the 109 and whenever i hit a "speed limit" i set a coarser pitch and it accelerates more. The 110 even starts climbing if i set coarse pitch in level flight.

The trick is to do it in stages, like shiting gears in a car: high RPM to accelerate from low speeds, the lower RPM as you get faster.
If you try to just set coarse pitch right from the start it's like trying to get your car moving from a stop while in 5th gear, it won't work well.