Today's Message Index:
----------------------
1. 03:33 AM - Certified Aircraft (Ira Saligman)
2. 04:26 AM - Re: G limits on the CJ6 (cjpilot710@aol.com)
3. 05:37 AM - Re: Air lines (Ernest Martinez)
4. 05:49 AM - Re: Air lines (A. Dennis Savarese)
5. 06:00 AM - Walter Turbine in Yak-52 (Richard Goode)
6. 06:09 AM - Re: Walter Turbine in Yak-52 (Robert Schwartz)
7. 07:02 AM - A couple of things (Janet Davidson)
8. 07:27 AM - Re: exhaust systems available soon (Bitterlich GS11 Mark G)
9. 07:28 AM - Re: A couple of things (A. Dennis Savarese)
10. 07:28 AM - Re: Air lines (Ernest Martinez)
11. 08:32 AM - Re: A couple of things (Brian Lloyd)
12. 08:44 AM - Re: G limits on the CJ6 (Doug Sapp)
13. 09:12 AM - Re: A couple of things (ggg6@att.net)
14. 09:42 AM - Re: A couple of things (Walter Lannon)
15. 10:47 AM - Red Air FAll Fling (Roger Kemp)
16. 11:10 AM - Re: A couple of things (Brian Lloyd)
17. 11:50 AM - Re: A couple of things (ggg6@att.net)
18. 11:55 AM - Re: A couple of things (Bitterlich GS11 Mark G)
19. 12:08 PM - Re: A couple of things (A. Dennis Savarese)
20. 12:50 PM - mogas and M14P (Brian Lloyd)
21. 01:14 PM - Re: mogas and M14P (Brian Lloyd)
22. 01:41 PM - Re: Re: mogas and M14P (ggg6@att.net)
23. 06:40 PM - BBC E-mail: China launches rocket into space (Janet)
24. 07:43 PM - Re: A couple of things (Cliff Umscheid)
Message 1
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| Subject: | Certified Aircraft |
We are looking at a newly certified aircraft.
If anyone has any experience in the manufacture of certified aircraft, if
you have a miunte, please contact me.
Thanks,
Ira Saligman
o 610 324 5500
f 215 243 7699
<mailto:isaligman@saligman.com> isaligman@saligman.com
Message 2
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| Subject: | Re: G limits on the CJ6 |
In a message dated 10/10/2005 11:53:02 P.M. Eastern Daylight Time,
joeh@shaw.ca writes:
Yakkers
Has anyone ever seen an official doc. showing allowable plus and minus "G"
for the CJ6 ?
Joe
Plus 6.5 to minus 3. Its in the aircraft manual.
Jim "Pappy" Goolsby
Message 3
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Why is there hydraulic fluid in your airplane?????
Ernie
On 10/10/05, aaron marshall <aaron@marshallservices.com> wrote:
>
> Might anyone know of a source for vented caps (that seal when inverted)
> that will tolerate 5606 hydraulic fluid? My brake fluid resevoir has a cap
> with a 20 thousandths hole in it and after any sort of negative G flight,
> most of the fluid is pushed out of the small casister and down the side of
> my airplane. Has any one else had this problem aand solved it?
> Thanks
> Aaron Marshall
> YAK52TW
>
Message 4
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Because he has a 52TW with toe brakes.
Dennis
----- Original Message -----
From: Ernest Martinez
To: yak-list@matronics.com
Sent: Tuesday, October 11, 2005 7:36 AM
Subject: Re: Yak-List: Air lines
Why is there hydraulic fluid in your airplane?????
Ernie
On 10/10/05, aaron marshall <aaron@marshallservices.com> wrote:
Might anyone know of a source for vented caps (that seal when inverted) that
will tolerate 5606 hydraulic fluid? My brake fluid resevoir has a cap with
a 20 thousandths hole in it and after any sort of negative G flight, most of the
fluid is pushed out of the small casister and down the side of my airplane.
Has any one else had this problem aand solved it?
Thanks
Aaron Marshall
YAK52TW
Message 5
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| Subject: | Walter Turbine in Yak-52 |
I don't know of anyone who has done it on a 52, but it has been done on a Yak-18T
and Su-26. It does make for a long nose to restore CofG.
You would have to fill much of the wings with fuel, and I think the real problem
is that the intrinsic drag of the aircraft means that speeds would be depressingly
low for that power. However, very good aerobatic performance, although
the normal M601 is non-aerobatic as is the prop.
Richard Goode
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Mob: +44 (0) 7768 610389
Fax: +44 (0) 1544 340129
www.russianaeros.com
dangerous content by the http://www.invictawiz.com
MailScanner, and is believed to be clean.
Message 6
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| Subject: | Re: Walter Turbine in Yak-52 |
it seemed like good idea, but not realistic I'm afraid
bob
From: Richard Goode
To: YAK USA LIST
Sent: Tuesday, October 11, 2005 7:59 AM
Subject: Yak-List: Walter Turbine in Yak-52
I don't know of anyone who has done it on a 52, but it has been done on a Yak-18T
and Su-26. It does make for a long nose to restore CofG.
You would have to fill much of the wings with fuel, and I think the real problem
is that the intrinsic drag of the aircraft means that speeds would be depressingly
low for that power. However, very good aerobatic performance, although
the normal M601 is non-aerobatic as is the prop.
Richard Goode
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Mob: +44 (0) 7768 610389
Fax: +44 (0) 1544 340129
www.russianaeros.com
dangerous content by http://www.invictawiz.com
and is believed to be clean.
Message 7
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| Subject: | A couple of things |
--> Yak-List message posted by: "Janet Davidson" <gbvfx@hotmail.com>
Firstly, I was at the Diamond Aircraft Factory the other day, nice aircraft,
but not a round engine or a drop of oil in sight :( Anyway, they said they
are working on a contract with the Chinese to supply their airforce with
Diamond aircraft to replace all those Nanchangs. Could be more Nanchangs
available for the GA market soon?
Secondly, does anyone have a contact in the Midwest for overhauling the
Chinese propeller? Doug has given me a contact in CA, which is great, but I
am hoping to find someone a bit closer to home. I did try Aircraft
Propeller Service, Inc, and tho' he was very helpful, he couldn't do it.
Just out of interest, he thinks there aren't very many Nanchangs in the
country, and most people have them converted to MT propellers as soon as
they can. I guess, in comparison to Hartzell and the rest, there's not many
Chinese or Yak propellers out there, but I think he is misinformed if he
thinks there aren't very many Nanchangs in the country. Does anyone know
how many are registered in the US? He also suggested I contact the
importer......I pointed out that he was talking to her....
Thanks,
Janet
Ph: 920 232 9238
email: gbvfx@hotmail.com
Message 8
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| Subject: | exhaust systems available soon |
Please add me to the list when you are up and running! YAK-50.
Mark Bitterlich
-----Original Message-----
From: KJKimball@aol.com [mailto:KJKimball@aol.com]
Subject: Yak-List: exhaust systems available soon
--> Yak-List message posted by: KJKimball@aol.com
Recently, there was some discussion of exhaust systems and leaks associated
with the stock style seals and clamps. Some of you have or have heard of
the
nearly leak free systems built by Gary Green of Radial Exhaust Systems in
West
Virginia. A short time ago, Gary decided to retire and sold his M14 related
part of the business to us. We are now setting up to produce the following
systems and will begin filling existing back orders in just a few weeks.
Pitts model 12 with and without heater
Murphy moose with dual heaters
Radial Rocket with or without heater
Yak 50, 52, 54 style with and without heater
CJ6-A 285 hp system with and without heater
CJ6-A M14P system with and without heater
SU-26 system (to be added soon)
Su-29-31 system (to be added soon)
Pricing will be along the same lines as from Radial Exhaust in the past.
All
321 Stainless steel construction, new stainless nuts and a set of doughnut
gaskets included with each system. Options will include heat muff and smoke
fittings.
Sincerely,
Kevin Kimball, VP Engineering
Jim Kimball Enterprises, Inc.
PO Box 849, 5354 Cemetery Rd.
Zellwood, FL 32798
407-889-3451 phone
407-889-7168 fax
http://www.jimkimballenterprises.com/
http://www.pittsmodel12.com/
Message 9
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| Subject: | Re: A couple of things |
--> Yak-List message posted by: "A. Dennis Savarese" <dsavarese@elmore.rr.com>
Somewhere between 275 and 300 I believe. Just about an equal number of Yak
52's as well.
Dennis
----- Original Message -----
From: "Janet Davidson" <gbvfx@hotmail.com>
Subject: Yak-List: A couple of things
> --> Yak-List message posted by: "Janet Davidson" <gbvfx@hotmail.com>
>
> Firstly, I was at the Diamond Aircraft Factory the other day, nice
> aircraft, but not a round engine or a drop of oil in sight :( Anyway,
> they said they are working on a contract with the Chinese to supply their
> airforce with Diamond aircraft to replace all those Nanchangs. Could be
> more Nanchangs available for the GA market soon?
>
> Secondly, does anyone have a contact in the Midwest for overhauling the
> Chinese propeller? Doug has given me a contact in CA, which is great, but
> I am hoping to find someone a bit closer to home. I did try Aircraft
> Propeller Service, Inc, and tho' he was very helpful, he couldn't do it.
> Just out of interest, he thinks there aren't very many Nanchangs in the
> country, and most people have them converted to MT propellers as soon as
> they can. I guess, in comparison to Hartzell and the rest, there's not
> many Chinese or Yak propellers out there, but I think he is misinformed if
> he thinks there aren't very many Nanchangs in the country. Does anyone
> know how many are registered in the US? He also suggested I contact the
> importer......I pointed out that he was talking to her....
>
> Thanks,
>
> Janet
>
>
> Ph: 920 232 9238
> email: gbvfx@hotmail.com
>
>
>
Message 10
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--> Yak-List message posted by: Ernest Martinez <erniel29@gmail.com>
My L-29 has a pressurized hydraulic tank, which does away with having
to have a vent hole (obviously not recomended for inverted flight).
One solution would be to tapp off of your air system reduce the
pressure to about 1 atm (15 PSI) and insert a check valve to prevent
hydraulic fluid from going back towards your air source. Then you
could do away with your venting cap. I dont know what kind of
hydraulic tank you have on the airplane, but the L-29 has approx a 2"
cap with a compression cap, you may be able to retrofit.
Ernie
On 10/11/05, A. Dennis Savarese <dsavarese@elmore.rr.com> wrote:
>
> Because he has a 52TW with toe brakes.
> Dennis
>
>
> ----- Original Message -----
> From: Ernest Martinez
> To: yak-list@matronics.com
> Sent: Tuesday, October 11, 2005 7:36 AM
> Subject: Re: Yak-List: Air lines
>
> Why is there hydraulic fluid in your airplane?????
>
> Ernie
>
>
> On 10/10/05, aaron marshall <aaron@marshallservices.com> wrote:
> >
> > Might anyone know of a source for vented caps (that seal when inverted)
> that will tolerate 5606 hydraulic fluid? My brake fluid resevoir has a cap
> with a 20 thousandths hole in it and after any sort of negative G flight,
> most of the fluid is pushed out of the small casister and down the side of
> my airplane. Has any one else had this problem aand solved it?
> >
> > Thanks
> >
> > Aaron Marshall
> > YAK52TW
> >
>
>
Message 11
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| Subject: | Re: A couple of things |
--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
Janet Davidson wrote:
> --> Yak-List message posted by: "Janet Davidson" <gbvfx@hotmail.com>
>
> Firstly, I was at the Diamond Aircraft Factory the other day, nice
> aircraft, but not a round engine or a drop of oil in sight :(
That Thielert diesel engine in the Diamond Twin-Star looks like the bee's
knees. Amazing fuel specifics and it burns jet fuel. As a calibration point,
down in the Caribbean, avgas is only available at a few places. You have to
tanker fuel to hell and back. Jet-A is available everywhere. The handwriting
is on the wall.
Seems to me that mogas capability is going to be critical for keeping
gasoline-powered aircraft in the air.
Is anyone running their M14P on mogas? I believe it is rated for 80 octane and
should run just fine on mogas. The Huosai runs just peachy on mogas.
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
Message 12
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| Subject: | G limits on the CJ6 |
A few years ago Joe Howse showed me a letter/document from a engineer (from
the factory I believe) which lists all he "G" limits in all configurations.
Do you still have this doc Joe?
Always Yakin,
Doug Sapp
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com]On Behalf Of cjpilot710@aol.com
Sent: Tuesday, October 11, 2005 4:27 AM
To: yak-list@matronics.com
Subject: Re: Yak-List: G limits on the CJ6
In a message dated 10/10/2005 11:53:02 P.M. Eastern Daylight Time,
joeh@shaw.ca writes:
Yakkers
Has anyone ever seen an official doc. showing allowable plus and minus
"G" for the CJ6 ?
Joe
Plus 6.5 to minus 3. Its in the aircraft manual.
Jim "Pappy" Goolsby
Message 13
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| Subject: | Re: A couple of things |
M-14P is rated for 91 oct Minimum...Gary
-------------- Original message from Brian Lloyd <brian-yak@lloyd.com>: --------------
> --> Yak-List message posted by: Brian Lloyd
>
>
>
> Janet Davidson wrote:
> > --> Yak-List message posted by: "Janet Davidson"
> >
> > Firstly, I was at the Diamond Aircraft Factory the other day, nice
> > aircraft, but not a round engine or a drop of oil in sight :(
>
> That Thielert diesel engine in the Diamond Twin-Star looks like the bee's
> knees. Amazing fuel specifics and it burns jet fuel. As a calibration point,
> down in the Caribbean, avgas is only available at a few places. You have to
> tanker fuel to hell and back. Jet-A is available everywhere. The handwriting
> is on the wall.
>
> Seems to me that mogas capability is going to be critical for keeping
> gasoline-powered aircraft in the air.
>
> Is anyone running their M14P on mogas? I believe it is rated for 80 octane and
> should run just fine on mogas. The Huosai runs just peachy on mogas.
>
> --
> Brian Lloyd 2243 Cattle Dr.
> brian-yak@lloyd.com Folsom, CA 95630
> +1.916.367.2131 (voice) +1.270.912.0788 (fax)
>
> I fly because it releases my mind from the tyranny of petty things . . .
> - Antoine de Saint-Exupery
>
>
>
>
>
>
>
>
>
>
>
<!-- BEGIN WEBMAIL STATIONERY -->
<!-- WEBMAIL STATIONERY noneset -->
M-14P is rated for 91 oct Minimum...Gary
-------------- Original message from Brian Lloyd brian-yak@lloyd.com: --------------
-- Yak-List message posted by: Brian Lloyd <BRIAN-YAK@LLOYD.COM>
Janet Davidson wrote:
-- Yak-List message posted by: "Janet Davidson" <GBVFX@HOTMAIL.COM>
Firstly, I was at the Diamond Aircraft Factory the other day, nice
aircraft, but not a round engine or a drop of oil in sight :(
That Thielert diesel engine in the Diamond Twin-Star looks like the bee's
knees. Amazing fuel specifics and it burns jet fuel. As a calibration point,
down in the Caribbean, avgas is only available at a few places. You have to
tanker fuel to hell and back. Jet-A is available everywhere. The handwriting
is on the wall.
Seems to me that m
<!-- END WEBMAIL STATIONERY -->
Message 14
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| Subject: | Re: A couple of things |
--> Yak-List message posted by: "Walter Lannon" <wlannon@cablerocket.com>
Hi Janet;
It's still out west but there is a shop with lots of experience on the J9G1
propellor. A1 Aircraft Propellor Service, Vancouver, B.C. Canada, 604-276-
2452.
Ask for Fred and give him my name. You will likely save enough on the
exhange rate to pay for shipping.
Cheers;
Walt
----- Original Message -----
From: "Janet Davidson" <gbvfx@hotmail.com>
Subject: Yak-List: A couple of things
> --> Yak-List message posted by: "Janet Davidson" <gbvfx@hotmail.com>
>
> Firstly, I was at the Diamond Aircraft Factory the other day, nice
> aircraft, but not a round engine or a drop of oil in sight :( Anyway,
> they said they are working on a contract with the Chinese to supply their
> airforce with Diamond aircraft to replace all those Nanchangs. Could be
> more Nanchangs available for the GA market soon?
>
> Secondly, does anyone have a contact in the Midwest for overhauling the
> Chinese propeller? Doug has given me a contact in CA, which is great, but
> I am hoping to find someone a bit closer to home. I did try Aircraft
> Propeller Service, Inc, and tho' he was very helpful, he couldn't do it.
> Just out of interest, he thinks there aren't very many Nanchangs in the
> country, and most people have them converted to MT propellers as soon as
> they can. I guess, in comparison to Hartzell and the rest, there's not
> many Chinese or Yak propellers out there, but I think he is misinformed if
> he thinks there aren't very many Nanchangs in the country. Does anyone
> know how many are registered in the US? He also suggested I contact the
> importer......I pointed out that he was talking to her....
>
> Thanks,
>
> Janet
>
>
> Ph: 920 232 9238
> email: gbvfx@hotmail.com
>
>
>
Message 15
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| Subject: | Red Air FAll Fling |
Yakkers,
Red Air FAll Fling is up to 38 aircraft if all make it in this coming weekend,
14-16 OCT 05. Realizing some will arrive early on 13 Oct 05. Transportation will
be available for the early birds. Mass brief will be at 0830 on Fri (14 Oct)
followed by the kick-off of ground school for both FAST and Tactical. Jeff "Ldogg"
Linebaugh has the flying schedule for the weekend firmly embedded in Jello
at this time.
The "Plan" is slowly falling in place, but ,Heh, we can always tap dance if we
have to!
See all the players this weekend.
Fly Safe and Chec 6!
Viperdoc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
Message 16
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| Subject: | Re: A couple of things |
--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
ggg6@att.net wrote:
>
>
> M-14P is rated for 91 oct Minimum...Gary
Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation margin to
run on 91 octane mogas. It may be that the M14P is the same. The M14P doesn't
have particularly high compression.
(Sorry, just thinking aloud.)
Is anyone running their M14P on mogas? If so, are you experiencing any problems?
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
Message 17
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| Subject: | Re: A couple of things |
Brian, I would suggest the need for 91 min. on the M14-P over the IO 540 is the
fact that it has a supercharger, and is pulling almost 35 inches of Manifold
Pressure, which in affect is like increasing the compression ratio.....Gary
-------------- Original message from Brian Lloyd <brian-yak@lloyd.com>: --------------
> --> Yak-List message posted by: Brian Lloyd
>
>
>
> ggg6@att.net wrote:
> >
> >
> > M-14P is rated for 91 oct Minimum...Gary
>
> Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation margin to
> run on 91 octane mogas. It may be that the M14P is the same. The M14P doesn't
> have particularly high compression.
>
> (Sorry, just thinking aloud.)
>
> Is anyone running their M14P on mogas? If so, are you experiencing any problems?
>
> --
> Brian Lloyd 2243 Cattle Dr.
> brian-yak@lloyd.com Folsom, CA 95630
> +1.916.367.2131 (voice) +1.270.912.0788 (fax)
>
> I fly because it releases my mind from the tyranny of petty things . . .
> - Antoine de Saint-Exupery
>
>
>
>
>
>
>
>
>
>
>
<!-- BEGIN WEBMAIL STATIONERY -->
<!-- WEBMAIL STATIONERY noneset -->
Brian, I would suggest the need for 91 min. on the M14-P over the IO 540 is the
fact that it has a supercharger, and is pulling almost 35 inches of Manifold
Pressure, which in affect islike increasing the compression ratio.....Gary
-------------- Original message from Brian Lloyd brian-yak@lloyd.com: --------------
-- Yak-List message posted by: Brian Lloyd <BRIAN-YAK@LLOYD.COM>
ggg6@att.net wrote:
M-14P is rated for 91 oct Minimum...Gary
Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation margin to
run on 91 octane mogas. It may be that the M14P is the same. The M14P doesn't
have particularly high compression.
(Sorry, just thinking aloud.)
Is anyone running their M14P on mogas? If so, are you experiencing any problems?
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
I fly because it releases my min
<!-- END WEBMAIL STATIONERY -->
Message 18
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| Subject: | A couple of things |
Brian, I have run mine on unleaded mogas quite a bit and it has run
perfectly without a sign of any problem what-so-ever. That is not an
endorsement, just a statement. I run a 50/50 mix of 100LL and unleaded (93
octane) as much as I am able to in order to try and reduce leading
problems... particularly on the number 2 cylinder. Of course, it also saves
$$$$ ... at least until mogas went through the roof! Yes, I also run MMO.
A friend had a 52 that he said he ran nothing BUT 93 octane mogas through
(very little to no 100LL) and he swears by it. I've run this mix for about
a year now with no problems that I can see. Leading is of course ... much
less. I keep a close check on the fuel for any alcohol content.
Agreed on the low compression pistons, but it also has a blower......
Mark
N50YK
-----Original Message-----
From: Brian Lloyd [mailto:brian-yak@lloyd.com]
Subject: Re: Yak-List: A couple of things
--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
ggg6@att.net wrote:
>
>
> M-14P is rated for 91 oct Minimum...Gary
Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation margin
to
run on 91 octane mogas. It may be that the M14P is the same. The M14P
doesn't
have particularly high compression.
(Sorry, just thinking aloud.)
Is anyone running their M14P on mogas? If so, are you experiencing any
problems?
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
Message 19
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| Subject: | Re: A couple of things |
--> Yak-List message posted by: "A. Dennis Savarese" <dsavarese@elmore.rr.com>
I have run my M14 on mogas, but only on 93 octane. No problems with it
though.
Dennis
----- Original Message -----
From: "Brian Lloyd" <brian-yak@lloyd.com>
Subject: Re: Yak-List: A couple of things
> --> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
>
>
> ggg6@att.net wrote:
>> M-14P is rated for 91 oct Minimum...Gary
>
> Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation
> margin to run on 91 octane mogas. It may be that the M14P is the same. The
> M14P doesn't have particularly high compression.
>
> (Sorry, just thinking aloud.)
>
> Is anyone running their M14P on mogas? If so, are you experiencing any
> problems?
>
> --
> Brian Lloyd 2243 Cattle Dr.
> brian-yak@lloyd.com Folsom, CA 95630
> +1.916.367.2131 (voice) +1.270.912.0788 (fax)
>
> I fly because it releases my mind from the tyranny of petty things . . .
> - Antoine de Saint-Exupery
>
>
>
Message 20
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--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
ggg6@att.net wrote:
> Brian, I would suggest the need for 91 min. on the M14-P over the IO
> 540 is the fact that it has a supercharger, and is pulling almost 35
> inches of Manifold Pressure, which in affect is like increasing the
> compression ratio.....Gary
I see that a couple of you are running mogas. I am glad to hear that. But
before I saw your messages I had already written the following. I think that
the information is useful and may be of interest.
The Huosai has a 6:1 compression ratio and runs with 33.5" of MAP and is rated
for 70 octane fuel. I suspect that the detonation margin for the M14P is
greater than we imagine.
And the point about Russian/Soviet fuel is well taken. Who knows what their
quality control was/is.
I just called Bob Peterson at Peterson Aviation, Inc. He is the one (in
addition to the EAA) who offers the mogas STCs on many production aircraft. He
didn't have specific information on the M14P but did have some guidelines for
figuring out whether one could run mogas in the M14P.
First thing he pointed out is that the Pratt 1320 and 1830 both have higher
compression ratios and higher max MAP than the M14P and they can run on mogas.
Next he said that 20 years ago the Russians had *really* crappy quality
control on their fuel and that the octane ratings on their fuel were always
suspect.
He also pointed out that the rest of the world does not measure octane in
their fuels the way we do here for Avgas (rich/lean method). He said that the
rest of the world tends to use the motor octane rating in which case 91 octane
"premium" mogas in the US would have a higher motor octane rating as our mogas
uses the average of the motor octane and radical octane numbers. He said the
only way to know for sure is to ask the engine manufacturer as to how the
octane number requirement for the engine was derived.
But he also said that the engine probably can run safely on mogas. He
suggested flying with mogas at reduced power. Pull the plugs and inspect the
top of the piston. If the normal ash deposit is still present, there is no
detonation. If the top of the piston is clean there is mild detonation. If the
top of the piston looks like you hammered on it with a ball-peen hammer, there
is severe detonation. If no detonation is present, increase the MAP in
increments until you finally test at full power. If the tops of the pistons
look normal, the engine has sufficient detonation margin.
He had only one serious caveat: make sure the mogas does not have alcohol in it.
In the days of rising fuel costs, running on mogas may be the only way we can
continue to afford our flying.
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
Message 21
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| Subject: | Re: mogas and M14P |
--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
For more info on mogas see Peterson Aviation's website at:
http://www.webworksltd.com/autofuelstc/pa/PetersenAviation.html
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
Message 22
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| Subject: | Re: mogas and M14P |
Guys on the use of auto fuel,, some of you have airplanes other than ones with
M-14P's or the Housi's in them,,, a word of warning: I just bought a Cessna 140
with a C-85 in it and the Acft has a STC approval for Auto Fuel, But since
the auto fuel approval, the C-85 has had an STC done on it, It now has a O-200
Crank, Rods, and Pistons,,the STC for the engine upgrade states that Auto Fuel
is not approved for the Upgraded engine..So check Your paper work, if there
has been any engine STC's done...Gary
-------------- Original message from Brian Lloyd <brian-yak@lloyd.com>: --------------
> --> Yak-List message posted by: Brian Lloyd
>
> For more info on mogas see Peterson Aviation's website at:
>
> http://www.webworksltd.com/autofuelstc/pa/PetersenAviation.html
>
> --
> Brian Lloyd 2243 Cattle Dr.
> brian-yak@lloyd.com Folsom, CA 95630
> +1.916.367.2131 (voice) +1.270.912.0788 (fax)
>
> I fly because it releases my mind from the tyranny of petty things . . .
> - Antoine de Saint-Exupery
>
>
>
>
>
>
>
>
>
>
>
<!-- BEGIN WEBMAIL STATIONERY -->
<!-- WEBMAIL STATIONERY noneset -->
Guys on the use of auto fuel,, some of you have airplanes other than ones with
M-14P's or the Housi's in them,,, a word of warning: I just bought a Cessna 140
with a C-85 in it and the Acft has a STC approval for Auto Fuel, But since the
auto fuel approval, the C-85 has had an STC done on it, It now has a O-200
Crank, Rods, and Pistons,,the STC for the engine upgrade states that Auto Fuel
is not approved for the Upgraded engine..So check Your paper work, if there has
been any engine STC's done...Gary
<!-- END WEBMAIL STATIONERY -->
Message 23
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| Subject: | BBC E-mail: China launches rocket into space |
friend" facility on http://www.bbc.co.uk/news/ The BBC is not
responsible for the content of this e-mail, and anything said in
this e-mail does not necessarily reflect the BBC's views.
.NET CLR 1.0.3705)
--> Yak-List message posted by: Janet <gbvfx@hotmail.com>
Janet saw this story on BBC News Online and thought you
should see it.
** Message **
I wonder if it had a round engine? And left a little trail of oil everywhere it
went ;)
Janet
** China launches rocket into space **
China successfully launches a rocket carrying two Chinese astronauts into space,
for the second time.
< http://news.bbc.co.uk/go/em/fr/-/1/hi/world/asia-pacific/4333158.stm >
** BBC Daily E-mail **
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If you do not wish to receive such e-mails in the future or want to know more about the BBC's Email a Friend service, please read our frequently asked questions. http://news.bbc.co.uk/1/hi/help/4162471.stm
Message 24
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| Subject: | Re: A couple of things |
Mark
In your use of that 50-50 mixture, are you using full throttle
position on takeoff? Do you make any effort to limit the percentage of
T.O. RPM to 100% ,or is your prop set to only allow you to achieve 100%
at full throttle? Some folks are "tweeking" the gov. adjustment to
102% at T.O. throttle to get extra advantage in the vertical . Of
course, they are using 100LL.
Does the M 14 P and PF have an "nrichment jet " in the carburetor
which opens at the full throttle position ?
How much MMO are you using with a full tank of gasoline?
Thanks,
Cliff
On Tue, 11 Oct 2005 14:56:25 -0400 Bitterlich GS11 Mark G
<BitterlichMG@cherrypoint.usmc.mil> writes:
Brian, I have run mine on unleaded mogas quite a bit and it has run
perfectly without a sign of any problem what-so-ever. That is not an
endorsement, just a statement. I run a 50/50 mix of 100LL and unleaded
(93 octane) as much as I am able to in order to try and reduce leading
problems... particularly on the number 2 cylinder. Of course, it also
saves $$$$ ... at least until mogas went through the roof! Yes, I also
run MMO.
A friend had a 52 that he said he ran nothing BUT 93 octane mogas through
(very little to no 100LL) and he swears by it. I've run this mix for
about a year now with no problems that I can see. Leading is of course
... much less. I keep a close check on the fuel for any alcohol content.
Agreed on the low compression pistons, but it also has a blower......
Mark
N50YK
-----Original Message-----
From: Brian Lloyd [mailto:brian-yak@lloyd.com]
Subject: Re: Yak-List: A couple of things
--> Yak-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
ggg6@att.net wrote:
>
>
> M-14P is rated for 91 oct Minimum...Gary
Hmm, the Lycoming IO-540 is rated for 91/96 but has ample detonation
margin to
run on 91 octane mogas. It may be that the M14P is the same. The M14P
doesn't
have particularly high compression.
(Sorry, just thinking aloud.)
Is anyone running their M14P on mogas? If so, are you experiencing any
problems?
--
Brian Lloyd 2243 Cattle Dr.
brian-yak@lloyd.com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
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