Today's Message Index:
----------------------
1. 01:40 AM - Re: Re: toe out on the main gear (pj.ladd)
2. 03:09 AM - wing mods (william sullivan)
3. 03:36 AM - 2 strokes (william sullivan)
4. 05:33 AM - Re: droop tips (icrashrc)
5. 05:54 AM - Re: Re: droop tips (John Hauck)
6. 06:21 AM - Re: 2 strokes (cristalclear13)
7. 06:29 AM - Re: memories at Monument Valley (John Hauck)
8. 07:32 AM - Re: Re: droop tips (N27SB@aol.com)
9. 07:38 AM - Re: Re: 2 strokes (N27SB@aol.com)
10. 07:47 AM - Re: Rick Neilsen's Article (jb92563)
11. 08:10 AM - Re: Re: 2 strokes (william sullivan)
12. 10:03 AM - Re: Re: 2 strokes (ElleryWeld@aol.com)
13. 11:03 AM - Re: 2 strokes (olendorf)
14. 12:19 PM - bottle (william sullivan)
15. 12:54 PM - Re: droop tips (David Lucas)
16. 01:07 PM - q (Russ Kinne)
17. 01:26 PM - Re: Re: droop tips/F105 wing ldg (Bob Noyer)
18. 02:07 PM - Re: Re: 2 strokes (knowvne@aol.com)
19. 03:17 PM - Re: Re: 2 strokes (gary aman)
20. 05:13 PM - Re: 2 strokes (Ralph B)
21. 06:05 PM - oil mix (william sullivan)
22. 06:15 PM - Re: 2 strokes (Thom Riddle)
23. 06:23 PM - oil mix (william sullivan)
24. 06:43 PM - Re: gas (Charlie England)
25. 07:01 PM - Fuel pump mounting (Dana Hague)
26. 07:01 PM - Re: gas (Dana Hague)
27. 07:10 PM - Re: 2 strokes (william sullivan)
28. 07:44 PM - 2 strokes Oil and a Clutch (knowvne@aol.com)
29. 07:51 PM - Re: gas (Charlie England)
Message 1
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Subject: | Re: toe out on the main gear |
I should not have gone (nude beeches) >>
Trees with no leaves on? That can`t be right surely?
Pat :-)
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Dennis- The reason the wings are mounted 2 1/2" back from standard is that they
are not the original wings. The original wings were damaged in a storm rollover
when the tie-down rope broke, just before I bought it. I can't positively identify
the airframe, or the replacement wings. No papers, no serial numbers.
TNK recommended the wing mount mod- a piece of 2 1/2" channel on the forward mount.
I had to make up new control rods for the ailerons. I requested information
from this List, and everyone recommended a prop spacer. I have a 2 1/2" one
coming in from Lockwood. I can't check the CG until I get better weather- too
windy. Scott Olendorf sent me a weight and balance chart. I should be within
the limit, as I only weigh 170, and the Firestar has a 725 gross.
The original wing set- clipped- needs repair from the flip over. They would
mount in the original position.
Bill Sullivan
FS/KX/447
Windsor Locks, Ct.
do not archive
Message 3
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Cristal- I am in the same position as you. I bought a used Firestar with a 447
Rotax, and no papers. The former owner was very casual on his maintenance, and
the aircraft is about 20 years old. I have been lurking on both the Kolb and
Rotax lists for quite a while to get a handle on everything. I don't have any
2 stroke flight time, and only have about 6 hours flying time. I have had a lot
of experience on 2 strokes in motorcycles, chain saws, and brush cutters, however.
In 40 years, the only 2 stroke engine failure was a hole burned in a Yamaha
piston- running a too hot plug in a dirt bike on the highway. Nobody told
me to change to a colder plug for highway use. Any other trouble was old gas,
or a poor gas mix. My advice, for what it's worth, is fresh gas, properly mixed,
good and careful maintenance, careful preflight, use the List, and enjoy!
Follow the guidelines for time at max rpm and CHT and there won't be any trouble.
All the other stuff comes under "pilot error".
Hey Listers- did I miss anything?
do not archive
Bill Sullivan
FS/KX/447
Windsor Locks, Ct.
Message 4
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With Miss Pfer staying home and the 'test completed' does this mean we'll see you
flying the yellow M3X @ s-n-f?
[quote="John Hauck"]Morning Bill:
What happened to droop tip test? I completed the test.
john h
mkIII
hauck's holler, alabama
[quote]
--------
Scott
www.ill-EagleAviation.com
do not archive
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Morning Scott:
Yes, I am going to do my best to be flying the X at S&F.
Glad to hear you all are going to be there too.
Don't know how it will fly in Florida air, since it is a Kentucky
aircraft. Travis told me it would do just fine.
Should be a good comparison between some of the hotter landing SLA's.
Always land behind one of those guys, and not a two place Quicksilver.
Makes the airplane look better. ;-)
Loading out now for departure. Ground bound to Florida.
john h
mkIII
hauck's holler, alabama
With Miss Pfer staying home and the 'test completed' does this mean
we'll see you flying the yellow M3X @ s-n-f?
Scott
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Thanks Bill. You say properly mixed which brings up another question. I have
a 50:1 ratio and I use a two-gallon tank (I'm a weakling). According to the calculation
then I would need to mix approx. 5.12 oz of oil in with my two-gallons
of gas. A 2/3 cup measurement is 5.33. Is there a more exact way of getting
the correct ratio?
--------
Cristal
Mark II Twinstar
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Subject: | Re: memories at Monument Valley |
Boyd:
Never a dull moment at MV.
Last year Artie's friend tried to take out our buddy Rick Neilsen on
take off. We got that one on video somewhere.
And the RV4 that landed at dark, then had an excursion off the dirt
strip and into the desert. Was an abrupt end to his journey from
California, IIRC. Also, after the incident, the pilot and crew could
not be found.
Of interest is the fact that we have not had an engine failure at MV, 2
or 4 stroke. ;-)
Two years ago Bill ground looped his old Luscombe on landing.
Don't think we have has a Kolb incident yet.
For those folks that come to the flyin by ground, remember that some of
us that fly spend two and a half days flying to get there, 15 to 20
hours of flight time. If you find us sitting on the ground most of the
time, it is because it feels good for old folks to take a break from
flying now and then. Also, this is also just the beginning of the
journey for some of us. From MV we will fly to the Rock House of Larry
and Karen Cottrell, just south of Burns Junction, Oregon, by way of who
know's where, sight see after departure from Larry's, and then have to
fly back home to Texas and Alabama. I'll end up with about 75 hours or
more on this trip.
Soon as I get home from MV, it is clean up, pack up, and fly to Homer's
in PA.
Then to Nauga Field, in LA; on to OSH; and finally, The Kolb Homecoming
2008 which will probably be held a weekend earlier than normal, the
third weekend of September rather than the last.
By that time, I should be pretty familiar with my old mkIII.
john h
mkIII
hauck's holler, alabama
My biggest regret is that I haven't had a camera in my pocket at all
times... like our first sitting in the restraunt eating my first
Navajo
taco and watching a kolb ra pilot do some exercises
Boyd.
Message 8
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John, the air tends to be thicker up there, that's what causes that drawl.
steve do not archive
In a message dated 4/2/2008 7:54:27 A.M. Eastern Standard Time,
jhauck@elmore.rr.com writes:
Don't know how it will fly in Florida air, since it is a Kentucky aircraft.
Travis told me it would do just fine.
**************Create a Home Theater Like the Pros. Watch the video on AOL
Home.
(http://home.aol.com/diy/home-improvement-eric-stromer?video=15&ncid=aolhom00030000000001)
Message 9
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In a message dated 4/2/2008 8:22:07 A.M. Eastern Standard Time,
cristalclearwaters@juno.com writes:
A 2/3 cup measurement is 5.33. Is there a more exact way of getting the
correct ratio?
Cristal, I mix fuel all the time. The best method I have come up with is:
Buy a 6 gal can.
put a whole pint of oil in
fill with 6 gal at the gas station.
set the 6 gal tank on the tailgate of the truck
(or set on a concrete block and rock the can forward to fill a 2.5 gal tank)
fill plane 2.5 gal at a time
There are also some cans that you can pump pressure in and dispense the fuel
with a nozzle.
Steve
**************Create a Home Theater Like the Pros. Watch the video on AOL
Home.
(http://home.aol.com/diy/home-improvement-eric-stromer?video=15&ncid=aolhom00030000000001)
Message 10
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Subject: | Re: Rick Neilsen's Article |
Read that article as well in EAA's Sport Pilot magazine.
It was about affordable engines, specifically the VW in Rick's aircraft.
Great work Rick, nicely done!
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Riverside County, CA
Do Not Archive
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Cristal- I bought a "Ratio-rite" measure from Aircraft Spruce. Very easy to use.
I would recommend using a five gallon can for mixing, and pour it into a 2.5
gallon for pouring. I have to do this because my gas tank is hard to get at,
and a bad back won't let me lift the 5 gallon that high. Use an MR funnel- read
instructions- to remove any water. It is also available at Aircraft Spruce.
If you don't have their catalog, get one. It is a flyer's wish book. Also, get
one from Lockwood for Rotax info. Pennzoil 2 stroke air-cooled oil is recommended,
available from Aircraft Spruce. Good luck, be meticulous, and have confidence
in that engine. Like John said- pilot error stops more engines than anything
else. Same thing with any 2 stroke.
Bill Sullivan
FS/KX/447
Windsor Locks, Ct.
cristalclear13 <cristalclearwaters@juno.com> wrote:
Thanks Bill. You say properly mixed which brings up another question. I have a
50:1 ratio and I use a two-gallon tank (I'm a weakling). According to the calculation
then I would need to mix approx. 5.12 oz of oil in with my two-gallons
of gas. A 2/3 cup measurement is 5.33. Is there a more exact way of getting the
correct ratio?
--------
Cristal
Mark II Twinstar
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Wicks Aircraft supply sells a oil measuring bottle that I have always used
if you dump in a gallon you fill the oil bottle to the one gallon mark and
dump it in that will makle sure you always use the correct ammount of oil
Ellery in Maine
do not archive
In a message dated 4/2/2008 8:22:07 A.M. Eastern Standard Time,
cristalclearwaters@juno.com writes:
--> Kolb-List message posted by: "cristalclear13"
<cristalclearwaters@juno.com>
Thanks Bill. You say properly mixed which brings up another question. I
have a 50:1 ratio and I use a two-gallon tank (I'm a weakling). According to
the calculation then I would need to mix approx. 5.12 oz of oil in with my
two-gallons of gas. A 2/3 cup measurement is 5.33. Is there a more exact way
of getting the correct ratio?
--------
Cristal
Mark II Twinstar
Read this topic online here:
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(http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000016)
Message 13
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Boy, do you guys have a lot of money!
I take the plastic containers that Crystal Light drink mix comes in. (It is made
of HDPE.) I put in the exact amount of oil necessary for 1 gal then mark it
with a sharpie. Then I mark off 2, 3 and 4 gals. The bigger containers will go
to 6 I think. I keep this in the plane so I can measure on the go. It even
comes with a snap on lid to keep it clean inside.
So If I stop to get gas and it comes out 3.5 gals I don't have to do math ( a mans
gotta know his limits ). I just fill with oil to the halfway spot between
3 and 4 and dump it in.
--------
Scott Olendorf
Original Firestar, Rotax 447, Powerfin prop
Schenectady, NY
http://KolbFirestar.googlepages.com
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Scott- You just sent me to the kitchen cabinet. I grabbed the wife's Crystal Light
container. Thanks.
do not archive
Bill Sullivan
FS/KX/447
Ct.
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Just came across a November 2000 Dan Johnson review of the Kolbra which has some
info on the subject.
> The test Kolbra has a wing loading of 5.2 pounds per square foot, according
to Labhart. This can only be true if our test Kolbra weighed 811 pounds fully
loaded and perhaps it did as Norm is smaller than I and I'm an FAA average 170
pounds. Not every ultralight flies at its gross weight (though that is more common
than having excess, unused weight). At full gross, wing loading calculates
to 6.4 pounds per square foot in the Kolbra.
>
> You may find it interesting that most 2-seat ultralights run wing loadings from
the high 5s up to 6, 7, 8, and even 9 pounds per square foot. On the other
hand, even when built by the same manufacturer most single-place ultralights have
wing loadings in the 3- to 4-pound range with the highest hitting the low
5 pounds per square foot. This is true for New Kolb with the FireFly at 4.3 and
the FireStar I at 3.9 pounds per square foot. I think this simple fact identifies
one of the reasons why single- and 2-seaters fly differently.
>
> Even at 6.4, Kolbra is in the lower range of all ultralight 2-seaters. Putting
it in perspective, the flashy new Cirrus SR20 (4-seat general aviation plane)
has a wing loading above 20 and hang gliders vary around 2 pounds per square
foot.
>
> When you load up the wing more, you generally get greater speed. All other things
being roughly equal, handling may be crisper, and stall usually rises. The
Kolbra has a 40-mph stall listed in company literature.
>
>
So I guess it depends on how much you 'clip' the wings when assessing the pro's
and con's.
David.
Nb. I wonder what the wing loading was like on the F104 Starfighter ?
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List
FWIW, I always flew with a supply of PRIST anti-bacterial fuel
treatment. Carried it in a plastic shampoo bottle, which had a spout
that folded over & sealed the bottle. I calculated how many seconds
of moderate-pressure squirting would fill a 2 oz. bottle. Used a
stopwatch, and it was surprisingly accurate! Also most easy to carry
& use. I then squirteed it right into the tank for that many seconds.
Oil of course is thicker & must be well mixed in a separate container.
My confuser tells me some personal messages have gone to the Kolb
list. If so, I apologize -- can't see why they would, since the word
KOLB doesn't appear anywhere in the email. But sorry if it's happened.
Do Not Archive
Message 17
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Subject: | Re: droop tips/F105 wing ldg |
F105 wing loading at max TO wt 28779#/196.1sq ft =146.75 #/sq ft.
regards,
Bob N. FireFly 070 Old Kolb
http://www.angelfire.com/rpg/ronoy/
do not archive
Message 18
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Guys
Is a little too much ok???
That =C2-has got to be better than not quite enough....=C2-
Does this spell bad plugs and possible engine failure
during that tank of gas???
Must it be 50:1 =C2-exactly???? =C2-How Anal must we be with this????
Thanks
Mark
-----Original Message-----
From: olendorf <olendorf@gmail.com>
Sent: Wed, 2 Apr 2008 2:01 pm
Subject: Kolb-List: Re: 2 strokes
Boy, do you guys have a lot of money!
I take the plastic containers that Crystal Light drink mix comes in. (It is
made
of HDPE.) I put in the exact amount of oil necessary for 1 gal then mark it
with a sharpie. Then I mark off 2, 3 and 4 gals. The bigger containers will
go
to 6 I think. I keep this in the plane so I can measure on the go. It even
comes with a snap on lid to keep it clean inside.
So If I stop to get gas and it comes out 3.5 gals I don't have to do math (
a
mans gotta know his limits ). I just fill with oil to the halfway spot betwe
en 3
and 4 and dump it in.
--------
Scott Olendorf
Original Firestar, Rotax 447, Powerfin prop
Schenectady, NY
http://KolbFirestar.googlepages.com
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Message 19
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Keep in mind that 503s that have oil injection, vary the amount of oil ingested
depending on throttle applied at the time.50 to 1 may be enough at full throttle,but
more than needed at partial throttle.It may not be as critical as we make
it An extra ounce in 5 gal doesn't seem too critical.Too much oil builds carbon,thats
why oil injection is desirable.The total amount of oil used per 5
gal of gas is less than 50-1.
----- Original Message ----
From: "knowvne@aol.com" <knowvne@aol.com>
Sent: Wednesday, April 2, 2008 1:04:21 PM
Subject: Re: Kolb-List: Re: 2 strokes
GuysIs a little too much ok???That has got to be better than not quite enough....
Does this spell bad plugs and possible engine failure
during that tank of gas???
Must it be 50:1 exactly???? How Anal must we be with this????
Thanks
Mark
-----Original Message-----
From: olendorf <olendorf@gmail.com>
Sent: Wed, 2 Apr 2008 2:01 pm
Subject: Kolb-List: Re: 2 strokes
Boy, do you guys have a lot of money!
I take the plastic containers that Crystal Light drink mix comes in. (It is made
of HDPE.) I put in the exact amount of oil necessary for 1 gal then mark it
with a sharpie. Then I mark off 2, 3 and 4 gals. The bigger containers will go
to 6 I think. I keep this in the plane so I can measure on the go. It even
comes with a snap on lid to keep it clean inside.
So If I stop to get gas and it comes out 3.5 gals I don't have to do math ( a
mans gotta know his limits ). I just fill with oil to the halfway spot between
3
and 4 and dump it in.
--------
Scott Olendorf
Original Firestar, Rotax 447, Powerfin prop
Schenectady, NY
http://KolbFirestar.googlepages.com
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et="_blank">http://www.matronics.com/Navigator?Kolb-List
p://forums.matronics.com
blank">http://www.matronics.com/contribution
Get the MapQuest Toolbar, Maps, Traffic, Directions & More!
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knowvne(at)aol.com wrote:
> Guys Is a little too much ok??? That has got to be better than not quite enough....
>
> Does this spell bad plugs and possible engine failure during that tank of gas???
>
> Must it be 50:1 exactly???? How Anal must we be with this????
>
> Thanks
> Mark
>
Actually, this was a topic about 21 years ago. 2-stroke engines are very fussy
as it's been discussed. Measuring oil is part of being fussy. 6-gallons requires
15.4 ounces of oil not 16 oz. One would think more oil means better lubrication.
Not so with a 2-stroke. Too much oil is worse than not enough because it
can lead to stuck rings when it fries into them. My 2-stroke has been reliable
because I make sure it gets the correct amount of oil (premixed 447) and I use
synthetic oil. There's one other thing I do, but I can't discuss it here as
it's too controversial (I've been doing it for many years).
Ralph
--------
Ralph B
Original Firestar
N91493 E-AB
21 years flying it
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Re: oil mix
Cristal- Which engine do you have?
do not archive
Bill Sullivan
FS/KX/447
Windsor locks, Ct.
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There is a better source (in my opinion) for Pennzoil Air-Cooled oil, at least
if you live in the NE part of the USA. Oil-store.com is located near Pittsburgh,
PA so the shipping cost of a case/box of oil is not bad to Buffalo. If you
like their price ask them to check the shipping cost to your zip code before you
order.
Question related to 2-stroke oil mixing:
Is the 50:1 ratio in terms of volume or weight? Since gasoline weighs 6 lb. per
US gallon and oil weighs (I think) 7.5 lb. per gallon there would be a different
result if mixed by weight or by volume. I've been using fluid ounces (which
a volume measurement) and have not had any problems but not sure which is "correct".
--------
Thom Riddle
N221FA Allegro 2000 912UL
N197BG FS1/447
--------------------
Believe nothing, no matter where you read it or who has said it, not even if I
have said it, unless it agrees with your own reason and your own common sense.
- Buddha
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Cristal- never mind, I found it. Sorry. Does your 503 have oil injection? Again,
I don't know about Rotax, but all oil injection systems I've been exposed to
worked great. You only have to worry about it if somebody disconnected it, or
played with it. As long as it works, there is no pre-mixing like on my 447. Just
in case you don't know- you said you did not have papers- you can't use both
systems at once. Don't put pre-mixed gas into the tank, and also use the oil
injection system. Too much oil that way. I just want to make sure that no mistakes
are made.
Someone here can give you tips on checking adjustments, cables, etc., or the
Matronics Rotax List.
do not archive
Bill Sullivan
FS/KX/447
Ct.
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william sullivan wrote:
> For anyone traveling in this area, the mogas sold at airports around
> here does not contain alcohol.
>
> Bill Sullivan
> FS/KX
> Windsor Locks, Ct
For what it's worth, if a public airport is selling mogas for use in
traditional 'certified' planes (not talking about lite sport/rotax, etc
powered), I'm pretty sure it would be against the regs to sell it with
alcohol in it. None of the STC's for mogas allow alcohol.
Charlie
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Subject: | Fuel pump mounting |
I was wondering where people mount their fuel pump. The Ultrastar manual
says to mount it between the front engine mounting bolts, which seems a
little awkward (and would require a rather long pulse tube). The Cuyuna
manual says NOT to mount it directly to the engine (presumably to protect
it from vibration), and to mount it above the pulse line connection to the
crankcase (to avoid fuel collecting in the pump and/or pulse line).
On mine, the pump was mounted (by a previous owner) to a plate bolted to
the side of the engine, and the pulse line runs (slightly) downhill to the
pump. It's not the Rotax pump with the weep hole, though I suppose I could
drill one. Double whammy I guess, but it works fine (so far), and I've
seen no evidence of fuel or oil collecting there. Still, I'm making some
changes tomorrow (adding a plunger primer and getting rid of the squeeze
bulb), so I'm wondering if I should move the pump while I'm at it, and
wondering where others have mounted it (and any associated problems).
-Dana
--
Lie ? Me ? Never! No, no, no, the truth is far too much fun!
Message 26
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At 09:40 PM 4/2/2008, Charlie England wrote:
>For what it's worth, if a public airport is selling mogas for use in
>traditional 'certified' planes (not talking about lite sport/rotax, etc
>powered), I'm pretty sure it would be against the regs to sell it with
>alcohol in it. None of the STC's for mogas allow alcohol.
It's not against the regs to SELL it, only to fly with it in your plane...
-Dana
--
Lie ? Me ? Never! No, no, no, the truth is far too much fun!
Message 27
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Thom- All the 2 stroke mixes are by volume.
do not archive
Bill Sullivan
FS/KX/447
Ct.
Message 28
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Subject: | 2 strokes Oil and a Clutch |
Keep in mind that 503s that have oil injection,=C2-
vary the amount of oil ingested depending on throttle applied at the time.
Gary=C2-
QUESTION FOR YA...
What about Long steep dives that Wind Mill the Prop and Raise Motor RPMs ?
In this situation, ARE we destroying the motor because were rapidly cooling
the=C2-
Motor while=C2-depriving it of needed oil due to a retarded throttle setti
ng ???
Isn't this happening with both Oil Injected and Pre Mixed systems???
AND if this is true, Isn't this a good justification for using a Clutch on t
he Prop??
Mark
50 to 1 may be enough at full throttle,but more than needed at partial throt
tle.It may not be as critical as we make it An extra ounce in 5 gal doesn't
seem too critical.Too much oil builds carbon,thats why oil injection is desi
rable.The total amount of oil used per 5 gal of gas is less than 50-1.
----- Original Message ----
From: "knowvne@aol.com" <knowvne@aol.com>
Sent: Wednesday, April 2, 2008 1:04:21 PM
Subject: Re: Kolb-List: Re: 2 strokes
Guys
Is a little too much ok???
That =C2-has got to be better than not quite enough....=C2-
Does this spell bad plugs and possible engine failure
during that tank of gas???
Must it be 50:1 =C2-exactly???? =C2-How Anal must we be with this????
Thanks
Mark
-----Original Message-----
From: olendorf <olendorf@gmail.com>
Sent: Wed, 2 Apr 2008 2:01 pm
Subject: Kolb-List: Re: 2 strokes
Boy, do you guys have a lot of money!
I take the plastic containers that Crystal Light drink mix comes in. (It is
made
of HDPE.) I put in the exact amount of oil necessary for 1 gal then mark it
with a sharpie. Then I mark off 2, 3 and 4 gals. The bigger containers will
go
to 6 I think. I keep this in the plane so I can measure on the go. It even
comes with a snap on lid to keep it clean inside.
So If I stop to get gas and it comes out 3.5 gals I don't have to do math (
a
mans gotta know his limits ). I just fill with oil to the halfway spot betwe
en 3
and 4 and dump it in.
--------
Scott Olendorf
Original Firestar, Rotax 447, Powerfin prop
Schenectady, NY
http://KolbFirestar.googlepages.com
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Message 29
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Dana Hague wrote:
>
> At 09:40 PM 4/2/2008, Charlie England wrote:
>
>> For what it's worth, if a public airport is selling mogas for use in
>> traditional 'certified' planes (not talking about lite sport/rotax,
>> etc powered), I'm pretty sure it would be against the regs to sell it
>> with alcohol in it. None of the STC's for mogas allow alcohol.
>
> It's not against the regs to SELL it, only to fly with it in your
> plane...
>
> -Dana
> --
> Lie ? Me ? Never! No, no, no, the truth is far too much fun!
You're probably technically correct, but if it's not labeled as
containing alcohol & it's coming out of a pump for a/c, I wouldn't want
to be the guy that intentionally sold it without telling the buyer about
it. Jail time for manslaughter ain't on my bucket list.
I'm not afraid of ethanol, if I know it's there & I've tested *my* fuel
system. But there are some factory planes that alcohol really will trash
the fuel system.
Charlie
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