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1. 09:52 AM - Re: Fuel tank progress/welding..... (aerocarjake)
2. 04:13 PM - Re: Re: Ethanol (Steven Dortch)
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| Subject: | Re: Fuel tank progress/welding..... |
Hello WF2....
Thx, I am using 0.063 5052 sheet for the tank. Since I hire out the welding I am
not exactly sure which wire Mike (Ready Weld) is using with his TIG welding
torch. Mike has been welding professionally for over 20 years so I yield those
decisions to his talent.
Ordering an additional sump (from a Stearman) today......... (progress one day
at a time!)
--------
Jake Schultz - curator,
Newport Way Air Museum (OK, it's just my home)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=447160#447160
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Update on E85. With current low oil prices. Texas and Oklahoma e10 gas is
1.93 to 2.20per gallon.
E85 is $2.47. My guess is that Ethanol base price is less affected by oil
prices. They also have fixed costs.
At my present situation, I don't want to experiment at a definite loss.
Blue skies,
Steve D
On Sep 16, 2015 9:57 AM, "Steven Dortch" <steven.d.dortch@gmail.com> wrote:
> In my Bonanza, I run 100LL in the wing tanks. If available I run unleaded
> MOGAS in the AUX (Baggage) tank. the system is a pressure carb and pumps
> 13 Gallons to the carb and returns 3.5 gallons to the left tank. So I end
> up with a Mix in the left tank and Do about 1/2 of my cruising on the aux
> tank.
>
> The old bird (1948) seems to prefer the autofuel. the 100 LL keeps me
> trying to keep the lead burned off of the plugs.
>
> Note! 100LL is very stable. It can burn cleanly after 1 to two years in
> good storage. The modern MOGAS is not very stable. It goes bad (separates
> into varnish and other chemicals) after a couple of months. When I put my
> Bonanza in storage I put 100 LL in all three tanks.
>
> Just a point of reference.
>
> Blue Skies,
> Steve D
>
> On Wed, Sep 16, 2015 at 9:34 AM, Kip Gardner <kipgohio1957@gmail.com>
> wrote:
>
>> I imagine vehicle age makes a difference. I have a 2001 Toyota Sienna
>> van that is supposed to make 26mpg & it stays pretty consistently at 21 on
>> 10% EtOH gas. I may try Mac's experiment, the premium differential around
>> here is less than 25%.
>>
>> Kip Gardner
>>
>> On Sep 16, 2015, at 9:30 AM, Steven Dortch <steven.d.dortch@gmail.com>
>> wrote:
>>
>> New car or old? My 2013 Ford Explorer only gets about 2 mpg better on
>> 100% gas. It's electronic brain adjusts the system to digest the 10%
>> ethanol. Indeed, it is a flex fuel vehicle and can run E85 (from 51% to 85%
>> ethanol.) I have not run it yet but will give it a try and will follow the
>> fuel mileage. I will then run some E10 and then run 100% gas.
>>
>> In Texas there is only 10% ethanol or E85. In Oklahoma you have a choice
>> of all three at some places.
>>
>> According to a Wikipedia list on ethanol (written by a very pro ethanol
>> writer) the fuel system cannot have unprotected aluminum, magnesium, and
>> rubber.
>>
>> Blue Skies,
>> Steve D.
>>
>> On Sep 15, 2015 10:17 PM, <macz@peak.org> wrote:
>>
>>> Oscar--
>>> I had heard that ethanol only degraded fuel mileage (the only thing I am
>>> really interested in for my pickup) a relatively small amount--but someone
>>> in my Model A club said it was a bigger deal than I thought. So I ran a
>>> test--a thousand miles each with E10 gas vs non-ethanol high test gas. And
>>> I got 26% BETTER mileage with the non-alcohol gas. So now whenever I can
>>> get non-alcohol gas for less than about a 25% price premium, I get that.
>>> Cheers, Mac in Newport
>>>
>>> ------------------------------
>>> *From: *"John Cox" <rv10pro@gmail.com>
>>> *To: *pietenpol-list@matronics.com
>>> *Sent: *Saturday, September 12, 2015 8:30:13 PM
>>> *Subject: *Re: Pietenpol-List: Re: Ethanol
>>>
>>> Great Read.
>>>
>>> John Cox
>>> Aurora, OR
>>> On Sep 12, 2015 11:10, "taildrags" <taildrags@hotmail.com> wrote:
>>>
>>>> taildrags@hotmail.com>
>>>>
>>>> Douwe; while I don't claim to be "in the know", as a fire protection
>>>> engineer I do have some knowledge of fuels and I can read a table of
>>>> physical properties of fuels. Strictly from the "fuel as energy"
>>>> standpoint, ethanol has an energy content of about 11,590 Btu per lb and
>>>> gasoline (including 100LL avgas) has an energy content of about 18,700 Btu
>>>> per lb. This means when you're burning a blend of gasoline and ethanol,
>>>> you're leaving some power on the table. Here in Oregon, regulations
>>>> mandate the sale of "E10" in some areas of the state and at certain times
>>>> of the year. This is a blend of 90% gasoline and 10% ethanol and it
>>>> results in a fuel with somewhere between 3% and 4% less energy than
>>>> straight gas. To put it in practical terms, but greatly oversimplifying,
>>>> your engine that produces 100HP running on avgas will only produce 96-97HP
>>>> on E10 mogas. Granted, the E10 will cost quite a bit less and that's the
>>>> attraction of it. As you've read from other posts here, ther!
>>>> e are downsides and one of them is the fact that ethanol is
>>>> incompatible with a lot of materials.
>>>>
>>>> Another downside is the potential for vapor lock. Ethanol has a lower
>>>> boiling point than straight gasoline, so it is less tolerant of high
>>>> temperatures under the cowling and it can vaporize in the fuel lines or
>>>> anywhere it's close to a hot surface. A vapor pocket or bubble in the fuel
>>>> system can stop the flow of fuel... "vapor lock". The problem is increased
>>>> in the summer, of course, because when we land with a nice warmed-up engine
>>>> and taxi over to the fuel pump and shut down, the areas inside the cowling
>>>> become heat-soaked and since there is no flow of cooler fuel in the lines
>>>> when the engine is shut down, the fuel can vaporize and lock the system,
>>>> making startup more difficult.
>>>>
>>>> The reason why you don't see cars sitting all over the shoulders of the
>>>> road with vapor lock is because most vehicles now are fuel injected or they
>>>> have fuel pumps that deliver the fuel under pressure, not gravity, and the
>>>> boiling point of a liquid increases as the pressure increases. You know
>>>> this from your camping experiences when you try to boil water while camping
>>>> up in the mountains. It boils at a lower temperature up where the
>>>> atmospheric pressure is lower, and your beans never cook! Of course this
>>>> same effect means that flying at higher altitudes lowers the boiling point
>>>> of fuel that contains ethanol, but most Piets fly down pretty low where
>>>> that isn't a big factor. More than you wanted to know, I'm sure ;o)
>>>>
>>>> --------
>>>> Oscar Zuniga
>>>> Medford, OR
>>>> Air Camper NX41CC "Scout"
>>>> A75 power
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=447027#447027
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>
>
> --
> Blue Skies,
> Steve D
>
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