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poor mans glow fuel - 12/13/2002 2:21:34 AM   
volksman


 

Posts: 33
Joined: 11/25/2002
From: middleton, PE, CANADA
Status: offline 		methyl hydrate and used oil from a gas turbine will run a glow engine ive tried it but havent flown with it. engine seems to run fine. any one ever fly on methylhydrate?
       Post #: 1

poor mans glow fuel - 12/13/2002 4:58:41 AM   
tdriver



Posts: 185
Joined: 11/9/2002
From: Athens, GREECE
Status: offline 		i havn't tried methyl hydrate,but i tested today turbine oil on glow fuel (exxon 2380). very good lubrication,even better idle (200rpm lower),and better transition,all this compared to castor.

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       Post #: 2

poor mans glow fuel - 12/13/2002 6:30:34 AM   
HankHill



Posts: 58
Joined: 11/8/2002
From: Austin, TX, USA
Status: offline 		Where do you get the methyl hydrate? Most of my engines need 0% nitro fuel and I have 2380 running out my butt. I have been thinking of mixing my own.

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       Post #: 3

poor mans glow fuel - 12/13/2002 4:27:23 PM   
volksman


 

Posts: 33
Joined: 11/25/2002
From: middleton, PE, CANADA
Status: offline 		methyl hydrate is used for thinning shellac also as an antifreeze
for auto gas and diesel should be available at home depo

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       Post #: 4

poor mans glow fuel - 12/13/2002 7:52:18 PM   
Ross Kean



Posts: 686
Joined: 6/4/2002
From: Fredericton, NB, CANADA
Status: offline 		Methyl hydrate is chemically IDENTICAL to methanol (CH3OH). It is also a component of windshield washer antifreeze (not pure). If you are using methyl hydrate in your fuel mix, I would suggest that you make sure that the product specification is no less than 99.5%. The most probably impurity is water and it doesn't take much to have a bad effect on engine performance.

Ross

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       Post #: 5

poor mans glow fuel - 12/14/2002 4:29:46 AM   
downunder-RCU



Posts: 1125
Joined: 12/27/2001
From: Adelaide, South Australia
Status: offline 		Based on what Ross said above I did a google search and found that methyl hydrate, wood alcohol and methanol are all one and the same thing.

Mobil Jet Oil 2 and the Exxon (now BP) 2380 are fine for our use but the latest 3rd generation Mobil jet oil won't mix with methanol. Personally I'd have no problem with using old jet oil drained out during a service because it doesn't degrade in use and there are virtually no contaminants. Also it should be free if you ask nicely

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       Post #: 6

poor mans glow fuel - 12/16/2002 7:08:37 AM   
rsieminski



Posts: 1406
Joined: 4/24/2002
From: Sarasota, FL, USA
Status: offline 		1.) How often do they change the oil in a turbine?
2.) Where would you go to get the used stuff? The airport? I don't think the airport, now-a-days, will let you get close to where they service the planes, will they?

They had 1 qt on the shelf of a local "pilot store", they wanted $12 a gal.


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poor mans glow fuel - 12/18/2002 11:58:39 AM   
h82crash



Posts: 831
Joined: 3/1/2002
From: ramona, CA, USA
Status: offline 		Will aeroshell 500 mix with methanol? And, the 2380 oil new is 6.89 a qt. This is a lot cheaper than i can get klotz.

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poor mans glow fuel - 12/18/2002 7:01:47 PM   
Sport_Pilot



Posts: 7242
Joined: 1/21/2002
From: Acworth, GA, USA
Status: offline 		Personally I'd have no problem with using old jet oil drained out during a service because it doesn't degrade in use and there are virtually no contaminants.

Obviously this is false or they wouldn't be changing the oil. Jet oil is toxic stuff, I don't recommend using it. For our use castor oil is a better lubricant.

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       Post #: 9

poor mans glow fuel - 12/18/2002 8:12:40 PM   
downunder-RCU



Posts: 1125
Joined: 12/27/2001
From: Adelaide, South Australia
Status: offline 		This is an abbreviated quote from the MSDS for Mobil Jet Oil 2. The full version is at http://www.aopis.org/Mobil%20Jet%20Oil%202%20MSDS.html

ORAL TOXICITY (RATS): Practically non-toxic
DERMAL TOXICITY (RABBITS): Practically non-toxic
INHALATION TOXICITY (RATS): Practically non-toxic

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       Post #: 10

poor mans glow fuel - 12/19/2002 7:25:47 PM   
volksman


 

Posts: 33
Joined: 11/25/2002
From: middleton, PE, CANADA
Status: offline 		THE TOXIC QUALITYS OF TURBINE OIL ARE NOT AN ISSUE IF YA WORK ON TURBINES YA GOT IT ON YOUR HANDS AND TOOLS ALL DAY. THE ONLY THING THAT COMES TO MIND IS IF A PLATED WRENCH WITH A SCRATCH IS CONSTANTLY USED IN THE OIL IT WILL EVENTUALLY DEBOND THE CHROME. INDUSTRIAL FINISH IS TO BE USED. SO IT SOUNDS LIKE THE PEELING OS LINERS AINT SUITABLE.

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       Post #: 11

poor mans glow fuel - 12/19/2002 7:35:15 PM   
volksman


 

Posts: 33
Joined: 11/25/2002
From: middleton, PE, CANADA
Status: offline 		forgot to mention in post above not a rocket scientist but a gas turbine tech grad

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       Post #: 12

poor mans glow fuel - 12/20/2002 3:52:39 AM   
tdriver



Posts: 185
Joined: 11/9/2002
From: Athens, GREECE
Status: offline 		[QUOTE]Originally posted by volksman
THE THE ONLY THING THAT COMES TO MIND IS IF A PLATED WRENCH WITH A SCRATCH IS CONSTANTLY USED IN THE OIL IT WILL EVENTUALLY DEBOND THE CHROME. INDUSTRIAL FINISH IS TO BE USED. SO IT SOUNDS LIKE THE PEELING OS LINERS AINT SUITABLE. [/QUOTE]

same thing happened to the tools in our garage (cars). I think if the chromed tool get scratched,it will eventually peel off,no matter what liquid will touch it.

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       Post #: 13

poor mans glow fuel - 12/20/2002 7:05:36 PM   
volksman


 

Posts: 33
Joined: 11/25/2002
From: middleton, PE, CANADA
Status: offline 		this is part of a major turbine manufacturers instructions concerning tools to be used. the reasoning is that the oil will lift the chrome finish on the tools wich can put foreign material into the engine. some of the posts above cocern the changing of oil and the degredation of the oil.

uder max fuel flow the combustor temps can get over twelve hudred degrees the metals will withstand in the order of 1600 f
this will form carbon in the oil over time also there are some wear items carbon seals etc which leave their residue in the oil

my model engines are older most no prizes will use old oil no problem its cheap fuel i fly by the gal per trip to the feild not a gal a summer. makes sense for me. if a model engine can get 20-30 gal put through with out bearing failures you are doing well.

the bearings have a given number of rotations with proper care until the molecular structure starts to fall apart. this was very evident on older asp engines. the alloys in the steel balls fell apart real fast. price usually determines quality usually

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       Post #: 14

poor mans glow fuel - 12/22/2002 12:26:45 PM   
rsieminski



Posts: 1406
Joined: 4/24/2002
From: Sarasota, FL, USA
Status: offline 		Carbon solids in the oil? Do you filter the fuel after it's mixed? Oops I meant $12 a qt. Where/how do you go about getting the oil?


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