Today's Message Index:
----------------------
1. 03:45 AM - Pennzoil goes bad (Eugene TigerMoth)
2. 12:53 PM - Re: Re: rpm (Duncan McFadyean)
3. 10:31 PM - RPM vs MP (Dave Grosvenor - DreamWings)
Message 1
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| Subject: | Pennzoil goes bad |
--> RotaxEngines-List message posted by: "Eugene TigerMoth" <getalife27@hotmail.com>
I was told that the 2 stroke Pennzoil has about a one year shelf life for
use in a Rotax. You can tell if the oil is old because the sides of the
plastic bottles will cave in a little. Has anyone heard of this?
Thanks
Eugene
Message 2
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--> RotaxEngines-List message posted by: "Duncan McFadyean" <ami@mcfadyean.freeserve.co.uk>
OK.
Now I understand where you're coming from; I'd expected to see an explicit
reference in the manual.
Duncan Mcf
----- Original Message -----
From: "David X" <dxj@comcast.net>
Sent: Wednesday, February 22, 2006 1:40 AM
Subject: RotaxEngines-List: Re: rpm
> --> RotaxEngines-List message posted by: "David X" <dxj@comcast.net>
>
> Look in Chapter 10 - Operating instructions. I have revision 3, July
> 01/2004. Look specifically at page 10-7 and 10-8 at the power curves and
> engine power settings table.
>
> Max cruise power = 5500
> 75% power = 5000
>
> The above figures are probably based on a standard day. Power decreases
> with altitude or decrease in density altitude, so it would make sense that
> you would increase RPM a little at altitude to maintain the same sea-level
> power. Also, the power curve reveals that maximum torque is at about 5150
> RPM, which is the happy medium between power and economy.
>
> At some point, you begin to split hairs.
>
> --------
> Zodiac 601 XL - CZAW Built - Rotax 912S
> DO NOT ARCHIVE
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=13942#13942
>
>
>
Message 3
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--> RotaxEngines-List message posted by: "Dave Grosvenor - DreamWings" <dave@dreamwings.co.za>
I have just bought a new SportStar manufactured by Evektor-Aerotechnik in
the Czech Republic. I have a Rotax 912S engine and a Woodcomp SR-3000 VP
prop on it.
Can any of you operating VP or CS props give me some idea of what RPM vs MP
you are running at to give good economic cruise numbers?
Dave
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