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carl(at)flyers.freeserve. Guest
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Posted: Sun Jul 25, 2010 2:02 pm Post subject: Woodcomp SR3000 |
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Hi,
Anyone have the scimitar blade version of the SR3000.
We have just assembled ours back from the factory and the microswitch cams
appear to be set incorrectly - we were told by Woodcomp that they had been
set by the factory and all that would be needed was to reassemble the prop.
The adjustment instruction sheet says the fine pitch should cut out at 18
degrees (safety backup cut out at 17 degrees). Ours is tripping at 12.5
degrees so significantly less than the reccomended figure. I am wondering if
the angle settings are different for the scimitar blades as opposed to the
normal straight ones.
The coarse pitch switch trips at 27 degrees.
Does anyone have experience of setting up one of these props?
Thanks in advance.
Carl Pattinson
G-LABS
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Ivor Phillips
Joined: 16 Jan 2006 Posts: 253 Location: London UK
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Posted: Sun Jul 25, 2010 11:25 pm Post subject: Woodcomp SR3000 |
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I have set mine to 20.0 and 19.5 respectively with coarse being 28.0,
If you set the fine pitch to give you 5200 rpm static that should put you in the ball park,
Graham Smith of Sprite aviation can give you any technical help on
Sprite Aviation Services Ltd
Inglenook Farm, Roman Rd,
Maydensole, Nr Dover
Kent, CT15 5HP
Tel: 01304 827266
Mob: 07973 254615
graham(at)spriteaviation.co.uk (graham(at)spriteaviation.co.uk)
Regards
ivor
On 25 July 2010 23:01, Carl Pattinson <carl(at)flyers.freeserve.co.uk (carl(at)flyers.freeserve.co.uk)> wrote:
[quote]--> Europa-List message posted by: "Carl Pattinson" <carl(at)flyers.freeserve.co.uk (carl(at)flyers.freeserve.co.uk)>
Hi,
Anyone have the scimitar blade version of the SR3000.
We have just assembled ours back from the factory and the microswitch cams appear to be set incorrectly - we were told by Woodcomp that they had been set by the factory and all that would be needed was to reassemble the prop.
The adjustment instruction sheet says the fine pitch should cut out at 18 degrees (safety backup cut out at 17 degrees). Ours is tripping at 12.5 degrees so significantly less than the reccomended figure. I am wondering if the angle settings are different for the scimitar blades as opposed to the normal straight ones.
The coarse pitch switch trips at 27 degrees.
Does anyone have experience of setting up one of these props?
Thanks in advance.
http:=====
http://forums.mle, List Admin.
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josok-e
Joined: 29 Jan 2010 Posts: 16 Location: Ivalo Finland
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Posted: Sun Jul 25, 2010 11:53 pm Post subject: Woodcomp SR3000 |
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Hi Carl,
There were scimitar blades on mine.
The prop had been repaired at the factory, and arrived assembled.
I never checked the fine pitch again, which nearly cost me my life,
because it must have been too fine to stay airborne.
So once more, please be very careful and never fly in rain with one of
those, because that too fine pitch, combined with a short circuiting
microswitch will bite you.
Apart of mine, in the small circle i am aware of, i know of 2 cases of
shorting microswitches, one loose gearwheel on the motor (rendering the
blades to roam on their own.) and now pitch inaccuracy confirmed.
Wish you luck, you will need it!
Regards,
Jos Okhuijsen
Carl Pattinson <carl(at)flyers.freeserve.co.uk> kirjoitti Mon, 26 Jul 2010
01:01:12 +0300:
Quote: |
<carl(at)flyers.freeserve.co.uk>
Hi,
Anyone have the scimitar blade version of the SR3000.
We have just assembled ours back from the factory and the microswitch
cams appear to be set incorrectly - we were told by Woodcomp that they
had been set by the factory and all that would be needed was to
reassemble the prop.
The adjustment instruction sheet says the fine pitch should cut out at
18 degrees (safety backup cut out at 17 degrees). Ours is tripping at
12.5 degrees so significantly less than the reccomended figure. I am
wondering if the angle settings are different for the scimitar blades as
opposed to the normal straight ones.
The coarse pitch switch trips at 27 degrees.
Does anyone have experience of setting up one of these props?
Thanks in advance.
Carl Pattinson
G-LABS
|
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