Malcolm, I would echo Frans' sentiments - go for the SR 3000 W! It is a
great blade with some 26 degrees of twist on the blade - which is ideal for
speeds in the 100 to 160 kt range, whereas the commonly seen blades of
Airmaster/Warp Drive, Arplast and ordinary Woodcomp props have only around
12 degrees of twist which leads to the central portion of the prop being in
beta mode as soon as it gets started. Changing from a Woodcomp SR2000 to an
SR 3000W absolutely transformed my cooling (which had always been an issue)
as well as increasing top speed and economy. Could let you have results of
comparative trials if you are interested.
Regards, David Joyce, G-XSDJ
----- Original Message -----
From: "Frans Veldman" <frans@privatepilots.nl>
Sent: Monday, May 30, 2011 4:37 PM
Subject: Re: Europa-List: Re: CS Prop Controller - manifold pressure.
>
> On 05/30/2011 03:35 PM, MalcolmH wrote:
>> I'm also considering a Woodcomp SR3000 with the Smart Avionics unit for
>> my monowheel.
>
> If you go this route, consider buying the SR3000/W version, it has more
> twist and matches better the Europa speed.
> Also, you might consider to buy the 2 blade instead of the 3 blade,
> because the 2 blade offers better speed and economy. You just save 50%
> of leading prop edge plowing through the air. I have the 2 blade /W
> version for my Rotax 914, and it offers superb performance and seems to
> be a perfect match. No vibrations if you keep the carbs balanced.
> I control this prop with the Smart Avionics unit which works perfectly
> with this prop.
>
> Frans
>
>
>
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