Today's Message Index:
----------------------
1. 02:55 AM - Re: Oil problem (pj.ladd)
2. 05:51 AM - Re: Oil problem (zeprep251@aol.com)
3. 07:07 AM - Re: Oil problem (Thom Riddle)
4. 03:46 PM - Re: Propeller and RPM (Chuck Deiterich)
5. 04:11 PM - Re: Re: Propeller and RPM (Peter Harris)
Message 1
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G.Aman MK-3C Jabiru 2200A 475hrs.>>
Hi,
just done the conversion kph to psi. Aint Google wonderful.
Pressure goes to 50 psi on start up and slowly drops to about 29 to
33psi at 2800 cruise which gives around 70 mph..
How does that compare with anyone else?
Pat
Message 2
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Pat,
?My 2200 ( indicates) 40 psi when everything is up to temp and 2600rpm cruise.
?G.Aman
-----Original Message-----
From: pj.ladd <pj.ladd@btinternet.com>
Sent: Sun, Sep 27, 2009 5:45 am
Subject: Re: JabiruEngine-List: Oil problem
G.Aman MK-3C Jabiru 2200A
475hrs.>>
?
Hi,
just done the conversion kph to psi. Aint Google
wonderful.
Pressure goes to 50 psi on start up and slowly
drops to about 29 to 33psi at 2800 cruise which gives around 70
mph..
?
How does that compare with anyone
else?
?
Pat
?
?
Message 3
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At my normal cruise speed of about 2640 rpm, my 2200A shows 40 psi on the EIS
and about 45 on the mechanical gauge.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x34
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=265203#265203
Message 4
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| Subject: | RE: Propeller and RPM |
Recall my complaint about my low RPM at WOT when looking at the
CH701/Jab2200 (Tenn prop 64x36) performance numbers published by Zenith.
Thinking it might be my airbox installation, I tried everything from no
filter to nothing on the Bing carb. No change in static max 2820 RPM
with my Tennessee 64X34. My good buddy, Bob, has a Jab 2200 in his
Sonex and offered to static test my prop. With his Tenn 54X46, he gets
static 3050 RPM but with my Tenn he got 2770 RPM. Our EGT's were about
1200 F. His engine is #852 and mine is #988. Both should be 80 hp.
Anyway the 64x34 is too much pitch for my 2200. But at least my air
system is OK.
Chuck D.
N701TX
Message 5
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| Subject: | RE: Propeller and RPM |
Chuck,
Mixture will be a critical factor . Too rich or too lean at any particular
power setting will cost heaps of rpm. You could make some well informed
tests with a different jet size or different fuel bowl level but research
first.
If the engine is still tight the prop may slightly overload it making it too
rich at WOT. Look for black smoke and plugs.
Peter
_____
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Chuck
Deiterich
Sent: Monday, 28 September 2009 8:43 AM
Subject: JabiruEngine-List: RE: Propeller and RPM
Recall my complaint about my low RPM at WOT when looking at the
CH701/Jab2200 (Tenn prop 64x36) performance numbers published by Zenith.
Thinking it might be my airbox installation, I tried everything from no
filter to nothing on the Bing carb. No change in static max 2820 RPM with
my Tennessee 64X34. My good buddy, Bob, has a Jab 2200 in his Sonex and
offered to static test my prop. With his Tenn 54X46, he gets static 3050
RPM but with my Tenn he got 2770 RPM. Our EGT's were about 1200 F. His
engine is #852 and mine is #988. Both should be 80 hp. Anyway the 64x34 is
too much pitch for my 2200. But at least my air system is OK.
Chuck D.
N701TX
17:51:00
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