Today's Message Index:
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1. 04:25 PM - Sensenich Prop (Damien)
2. 04:39 PM - Re: Sensenich Prop (Paul Mulwitz)
Message 1
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Hello. I have a Zodiac 601 HDS. I had GSC 68 inch, 3 blade prop. Today
I switched to a 68 inch Sensenich prop.
It was a bit bumpy up there this afternoon, but at 5000 RPM, it seems
that I have picked up 15 mph with the
Sensenich prop. I will try to report more solid numbers later. The blade
is pitched to 3; (the pitch numbers go from 1 to 5)
When I did a static run-up, it was 4700/4800 rpm. When I got up to
altitude and leveled it out, the most RPM I could get was 5100.
The fellow who built my plane has a rubber stop about an inch long
between the panel and the throttle. I am trying to think this through.
My plan is to cut the rubber stop until I am able to reach either 5500
or 5800. This would give me more RPM at takeoff and allow me
to cruise faster if I want to.
Sound like a plan ??
Regards,
Damien
N48TK
Message 2
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Hi Damien,
Be careful with the throttle linkage for your engine. I got a leased plane
(Tecnam Echo Super) with the same engine (912ULS) and had nightmares for
months with faulty throttle linkage and friction lock mechanism. You need
to keep the dual carburetors synchronized, and the control from the cockpit
must allow for full control in both directions from idle to maximum power.
If you haven't been to the Rotax school, I strongly suggest you study all
the engine stuff around the carburetors very carefully before messing with
it. You might do best to get a chapter member with experience on this
engine to help you out. There are also great resources online, but you need
to be intimate with several different documents before doing anything on
this monstrosity of an engine.
Paul
XL with Jabiru doing upgrade
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Damien
Sent: Wednesday, August 04, 2010 4:25 PM
Subject: Zenith601-List: Sensenich Prop
Hello. I have a Zodiac 601 HDS. I had GSC 68 inch, 3 blade prop. Today I
switched to a 68 inch Sensenich prop.
It was a bit bumpy up there this afternoon, but at 5000 RPM, it seems that I
have picked up 15 mph with the
Sensenich prop. I will try to report more solid numbers later. The blade is
pitched to 3; (the pitch numbers go from 1 to 5)
When I did a static run-up, it was 4700/4800 rpm. When I got up to altitude
and leveled it out, the most RPM I could get was 5100.
The fellow who built my plane has a rubber stop about an inch long between
the panel and the throttle. I am trying to think this through.
My plan is to cut the rubber stop until I am able to reach either 5500 or
5800. This would give me more RPM at takeoff and allow me
to cruise faster if I want to.
Sound like a plan ??
Regards,
Damien
N48TK
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