Today's Message Index:
----------------------
1. 09:38 AM - Re: Operational questions... (Barry Hancock)
2. 09:58 AM - Re: Manuals (N7092A@aol.com)
3. 10:41 AM - Re: Operational questions... (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
4. 12:53 PM - Re: Re: Operational questions... (Roger Kemp)
5. 01:01 PM - Re: Operational questions... (Roger Kemp)
6. 03:36 PM - Yak Insurance (Tom Johnson)
7. 05:20 PM - Re: Yak Insurance (Roger Kemp)
Message 1
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| Subject: | Re: Operational questions... |
On Aug 14, 2006, at 11:58 PM, Yak-List Digest Server wrote:
> Time: 12:18:45 PM PST US
> From: "Roger Kemp" <viperdoc@mindspring.com>
> Subject: RE: Yak-List: Operational questions...
>
> --> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
>
> Tim,
> For nominal cruise, I am using the same power settings as the 52.
> 65% and
> 700 mmHg. With that I am seeing 240 kmph. To play with the 52's, I
> have to
> pull back to 62% and 600 mmHg. That gives me 220 kmph.
Doc, don't forget, that's with one mag off... ;)-
> I start with the advance opened by somewhere less than a 1/4. Wam
> up is at
> 40%. Mine fluctuates between 40%. I do see the usual "twitching" of
> the
> Tach needle but not a creaping up. Have you checked the resistance
> in the
> throttle quadrant? Has you tension loosened up. Sorry..I'm blanking
> the
> term for that knob that tightens or loosens the tension in the
> throttle
> levers???
It has been my across the board experience with the various radials
that I've flown that as the engine comes to life and warms up that
the RPM will increase fairly consistently over the course of the
first couple of minutes. As plugs clean and temps rise, the burn is
more complete and thus requires a lower amount of fuel for the same
RPM...
Barry
Message 2
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Jim I suggest you take Kregg up on the translation offer but you have to
make sure that you insist that the translator be present with you when she d
oes
it. I have seen her and she is hot!
Mark
In a message dated 8/7/2006 8:27:51 A.M. Pacific Daylight Time,
kregg@balancemyprop.com writes:
Jim,
I havn=99t had any experience with the FAA and Yak-18 manuals, but I
do have
someone that can transcribe the manual from Russian to English if it comes
to
that.
Kregg Victory
____________________________________
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jim
Sent: Monday, August 07, 2006 8:18 AM
Subject: Yak-List: Manuals
I'm trying to get my Maintanance Manuals for my Yak-18 transcribed into
English, the FAA won't sign the Plane off till there in English, has anyone
had
this Problem with the FAA. any Ideas.
Jim Selby
Message 3
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| Subject: | Operational questions... |
--> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14
64E" <mark.bitterlich@navy.mil>
I don't usually get 800 mmHg on cross countries, because I typically fly
above 7500 feet. I usually hang out between 7 and 12 thousand. I do
not have a fuel flow gage, but over a very well known route that takes
me an hour and 10 minutes, I burn about 18 or 19 gallons. I can pull it
way back and get MUCH better than that... But I also am in the air
longer and end up burning almost exactly the same amount of gas to get
where I am going. In other words, from about 60% to slightly below 80%,
you really do not save anything by pulling back. Once you go over 80%
though, the line is no longer linear. I.E., The speed gain is not equal
to the increase in fuel burn. I never... EVER cruise below 75% unless
I am simply boring holes in the sky and want to open the canopy all the
way while day dreaming, and I rarely ever go over 85% Doing aerobatics
though, I run about 98% the whole time. Yeah, I know all about the
posted limitations... I also know that every Russian pilot flies these
engines wide smack open during acro, and their engines do NOT fail, and
they are pushing the PF models to around 102%.
Recently coming back from Florida with a bad headwind, I had to stay
low, and at 85% and full throttle (near 800 mmHg) my fuel burn was very
high.. About 23 GPH I would guess.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Monday, August 14, 2006 17:11
Subject: RE: Yak-List: Operational questions...
--> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
Mark,
Thanks...having brain lock today... something about the fenzy leading up
to my son's wedding and Bridezilla!
Using the 80% and 800 mmHg manifold pressure, what are you seeing for
fuel consumption on XC's?
Doc
> [Original Message]
> From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
<mark.bitterlich@navy.mil>
> To: <yak-list@matronics.com>
> Date: 8/14/2006 2:51:23 PM
> Subject: RE: Yak-List: Operational questions...
>
> --> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry
> --> Point,
MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Friction Lock. :-)
>
> Just for the record I am at the opposite side of the spectrum (what
> else is new?). I run the M-14P hard. I used to baby it along at 65%
> or so, and put-put-put my way across the country. That was until I
> started having serious problems with leading on the exhaust valve,
> Marvel Mystery Oil or NOT!
>
> I then changed my tactics. I now run 80% to 85% on a regular basis.
> RARELY lower than that. Throttle is pulled back on a cross country to
> JUST the point where I see the manifold pressure gage move at all.
> This takes the carb off the enriching circuit and saves you fuel with
> no significant power loss. I see about 155-160 knots at this setting
> depending a lot on outside air temp, altitude, etc. I also change
the
> oil a LOT... About every 20 hours if possible. NEVER more than 40
> hours.
>
> I have run the engine this way for the last 300 or so hours. I now
> have just near 700 hours in the engine, and I have one cylinder with
> compression that is not perfect. It is about 80/73. The rest are
> 80/76 or higher.
>
> I believe that with really careful management of cylinder head temps
> (shutter position, etc) you can run very low power settings. However,
> if you let the engine run too cool with real low power settings, you
> are doing it a real disservice.
>
> Mark
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Monday, August 14, 2006 15:18
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Operational questions...
>
> --> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
>
> Tim,
> For nominal cruise, I am using the same power settings as the 52. 65%
> and 700 mmHg. With that I am seeing 240 kmph. To play with the 52's,
> I have to pull back to 62% and 600 mmHg. That gives me 220 kmph.
> I start with the advance opened by somewhere less than a 1/4. Wam up
> is at 40%. Mine fluctuates between 40%. I do see the usual "twitching"
> of the Tach needle but not a creaping up. Have you checked the
> resistance in the throttle quadrant? Has you tension loosened up.
> Sorry..I'm blanking the term for that knob that tightens or loosens
> the tension in the throttle levers???
> Doc
>
>
> > [Original Message]
> > From: Tim Gagnon <NiftyYak50@msn.com>
> > To: <yak-list@matronics.com>
> > Date: 8/14/2006 12:38:09 PM
> > Subject: Yak-List: Operational questions...
> >
> > --> Yak-List message posted by: "Tim Gagnon" <NiftyYak50@msn.com>
> >
> > I have started flying my airplane (Yak-50) on more cross countries
> > and
> have been using the published numbers for cruise and so on. I was
> wondering what everyone is using and what kind of numbers those
> settings are giving you. Also, what is a good altitude. I normally fly
> less than 200nm.
> >
> > One more question. What is your normal start RPM? Mine is creeping
> again..
> >
> > Thanks in advance..
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=54699#54699
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 4
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| Subject: | Re: Operational questions... |
Yeah, but one mag off sure fowls the plugs. I Hate it when she spits an sputters
on final because I flew the whole sortie on one mag!
:-))
Doc
----- Original Message -----
From: Barry Hancock
Sent: 8/15/2006 11:54:02 AM
Subject: Yak-List: Re: Operational questions...
On Aug 14, 2006, at 11:58 PM, Yak-List Digest Server wrote:
Time: 12:18:45 PM PST US
From: "Roger Kemp" <viperdoc@mindspring.com>
Subject: RE: Yak-List: Operational questions...
--> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
Tim,
For nominal cruise, I am using the same power settings as the 52. 65% and
700 mmHg. With that I am seeing 240 kmph. To play with the 52's, I have to
pull back to 62% and 600 mmHg. That gives me 220 kmph.
Doc, don't forget, that's with one mag off... ;)-
I start with the advance opened by somewhere less than a 1/4. Wam up is at
40%. Mine fluctuates between 40%. I do see the usual "twitching" of the
Tach needle but not a creaping up. Have you checked the resistance in the
throttle quadrant? Has you tension loosened up. Sorry..I'm blanking the
term for that knob that tightens or loosens the tension in the throttle
levers???
It has been my across the board experience with the various radials that I've flown
that as the engine comes to life and warms up that the RPM will increase
fairly consistently over the course of the first couple of minutes. As plugs
clean and temps rise, the burn is more complete and thus requires a lower amount
of fuel for the same RPM...
Barry
Message 5
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| Subject: | Operational questions... |
--> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
Ok, Thanks. I need to get a fuel flow meter installed then. My 50 fuel
gauge is really a 52 gauge and is not reliable. I that at 65% and 700 mmHG
I am burning 10.5 gal/hr and showing 140 kts on the GPS.
Guess LoPreistie is right. Life is to short to go slow. And it keeps your
plugs clean too! So I'll try the 80% and 750-780 mmHG to see what I get
after an hour of flying.
Doc
> [Original Message]
> From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
<mark.bitterlich@navy.mil>
> To: <yak-list@matronics.com>
> Date: 8/15/2006 12:59:45 PM
> Subject: RE: Yak-List: Operational questions...
>
> --> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E" <mark.bitterlich@navy.mil>
>
> I don't usually get 800 mmHg on cross countries, because I typically fly
> above 7500 feet. I usually hang out between 7 and 12 thousand. I do
> not have a fuel flow gage, but over a very well known route that takes
> me an hour and 10 minutes, I burn about 18 or 19 gallons. I can pull it
> way back and get MUCH better than that... But I also am in the air
> longer and end up burning almost exactly the same amount of gas to get
> where I am going. In other words, from about 60% to slightly below 80%,
> you really do not save anything by pulling back. Once you go over 80%
> though, the line is no longer linear. I.E., The speed gain is not equal
> to the increase in fuel burn. I never... EVER cruise below 75% unless
> I am simply boring holes in the sky and want to open the canopy all the
> way while day dreaming, and I rarely ever go over 85% Doing aerobatics
> though, I run about 98% the whole time. Yeah, I know all about the
> posted limitations... I also know that every Russian pilot flies these
> engines wide smack open during acro, and their engines do NOT fail, and
> they are pushing the PF models to around 102%.
>
> Recently coming back from Florida with a bad headwind, I had to stay
> low, and at 85% and full throttle (near 800 mmHg) my fuel burn was very
> high.. About 23 GPH I would guess.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Monday, August 14, 2006 17:11
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Operational questions...
>
> --> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
>
> Mark,
> Thanks...having brain lock today... something about the fenzy leading up
> to my son's wedding and Bridezilla!
> Using the 80% and 800 mmHg manifold pressure, what are you seeing for
> fuel consumption on XC's?
> Doc
>
>
> > [Original Message]
> > From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
> <mark.bitterlich@navy.mil>
> > To: <yak-list@matronics.com>
> > Date: 8/14/2006 2:51:23 PM
> > Subject: RE: Yak-List: Operational questions...
> >
> > --> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry
> > --> Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > Friction Lock. :-)
> >
> > Just for the record I am at the opposite side of the spectrum (what
> > else is new?). I run the M-14P hard. I used to baby it along at 65%
> > or so, and put-put-put my way across the country. That was until I
> > started having serious problems with leading on the exhaust valve,
> > Marvel Mystery Oil or NOT!
> >
> > I then changed my tactics. I now run 80% to 85% on a regular basis.
> > RARELY lower than that. Throttle is pulled back on a cross country to
>
> > JUST the point where I see the manifold pressure gage move at all.
> > This takes the carb off the enriching circuit and saves you fuel with
> > no significant power loss. I see about 155-160 knots at this setting
> > depending a lot on outside air temp, altitude, etc. I also change
> the
> > oil a LOT... About every 20 hours if possible. NEVER more than 40
> > hours.
> >
> > I have run the engine this way for the last 300 or so hours. I now
> > have just near 700 hours in the engine, and I have one cylinder with
> > compression that is not perfect. It is about 80/73. The rest are
> > 80/76 or higher.
> >
> > I believe that with really careful management of cylinder head temps
> > (shutter position, etc) you can run very low power settings. However,
>
> > if you let the engine run too cool with real low power settings, you
> > are doing it a real disservice.
> >
> > Mark
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> > Sent: Monday, August 14, 2006 15:18
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: Operational questions...
> >
> > --> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
> >
> > Tim,
> > For nominal cruise, I am using the same power settings as the 52. 65%
>
> > and 700 mmHg. With that I am seeing 240 kmph. To play with the 52's,
> > I have to pull back to 62% and 600 mmHg. That gives me 220 kmph.
> > I start with the advance opened by somewhere less than a 1/4. Wam up
> > is at 40%. Mine fluctuates between 40%. I do see the usual "twitching"
>
> > of the Tach needle but not a creaping up. Have you checked the
> > resistance in the throttle quadrant? Has you tension loosened up.
> > Sorry..I'm blanking the term for that knob that tightens or loosens
> > the tension in the throttle levers???
> > Doc
> >
> >
> > > [Original Message]
> > > From: Tim Gagnon <NiftyYak50@msn.com>
> > > To: <yak-list@matronics.com>
> > > Date: 8/14/2006 12:38:09 PM
> > > Subject: Yak-List: Operational questions...
> > >
> > > --> Yak-List message posted by: "Tim Gagnon" <NiftyYak50@msn.com>
> > >
> > > I have started flying my airplane (Yak-50) on more cross countries
> > > and
> > have been using the published numbers for cruise and so on. I was
> > wondering what everyone is using and what kind of numbers those
> > settings are giving you. Also, what is a good altitude. I normally fly
>
> > less than 200nm.
> > >
> > > One more question. What is your normal start RPM? Mine is creeping
> > again..
> > >
> > > Thanks in advance..
> > >
> > >
> > >
> > >
> > > Read this topic online here:
> > >
> > > http://forums.matronics.com/viewtopic.php?p=54699#54699
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 6
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Yak insurance update (short form).
Things seem to be going a LOT better for Yaks and CJs as far as losses.
Whatever we're doing it works.
New link for Yak drivers: www.yakinsurance.com takes you directly to my
website.
Update for Yak 55 and Wilga owners...
I have a new option for your insurance that can help lower the cost
significantly.
Only affects these 2 aircraft, but it is a good alternative to the very high
prices seen before.
Done FOD checks lately?
Lubricate your air-system?
Tj
---------------------------
Thomas Johnson
Airpower Insurance, LLC
36 West Ocotillo Road
Phoenix, AZ 85013-1235
Toll Free: 866-475-9199
Tel: 602-628-2701
Fax: 623-321-5843
www.airpowerinsurance.com <http://www.airpowerinsurance.com/>
E: tomjohnson@cox.net
Message 7
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Tom,
You got a retractable tailwheel in your 50 now?
Doc
----- Original Message -----
From: Tom Johnson
Sent: 8/15/2006 6:00:51 PM
Subject: Yak-List: Yak Insurance
Yak insurance update (short form).
Things seem to be going a LOT better for Yaks and CJs as far as losses.
Whatever we're doing it works.
New link for Yak drivers: www.yakinsurance.com takes you directly to my website.
Update for Yak 55 and Wilga owners...
I have a new option for your insurance that can help lower the cost significantly.
Only affects these 2 aircraft, but it is a good alternative to the very high prices
seen before.
Done FOD checks lately?
Lubricate your air-system?
Tj
---------------------------
Thomas Johnson
Airpower Insurance, LLC
36 West Ocotillo Road
Phoenix, AZ 85013-1235
Toll Free: 866-475-9199
Tel: 602-628-2701
Fax: 623-321-5843
www.airpowerinsurance.com
E: tomjohnson@cox.net
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