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Mikado Modellhubschrauber . GrandRC . CanoMod

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Got Jet Fuel? Turbine Helicopters > fuel oil ratio
 
 
Skeeter Pilot
Senior Heliman
Location: England

Wren, nice and easy - 2% ok, upto 4% if you fancy it. I've run 4% TTS for 80 hours no probs. I'm a happy boy

PS. Sorry for being so happy, just love my Wren!
------------------------------------------

If there is soil going over the canopy, you're too low!
10-29-2007 12:20 AM
 
 
Donovan Dow
Senior Heliman
Location: Ottawa Ontario Canada

Evening All

Here are my new numbers:

2 Jugs Turbine Oil Ratio Manufacturer
18.92 liters 0.473 liters 40:1 2.50% Wren
18.92 liters 0.946 liters 20:1 5.00% JetCat
18.92 liters 1.325 liters 15:1 7.00% Jakadofsky

My Kerosene comes in 9.46 liter jugs.
My Turbine Oil comes in 0.946 liter cans.Do

Cheers
don dow
10-29-2007 12:28 AM
HOMEPAGE  
 
 
Havoc
Key Veteran
Location: Ky.

Quote 
Hi All.

I wonder why they state 7% Oil.

is this a jakodofsky engine thing, or are we all supposed to be running with a similar amount in Turbines.

The Jakadofsky manual states 20:1 while the starwood site says 15:1 so I guess we need to find out where the error is. I tend to side on what the Jakadofsky manual says since they made the engine and perform the service on it.
10-29-2007 03:20 AM
 
 
Skeeter Pilot
Senior Heliman
Location: England

Can't believe it's all so vague.

----------------------------

If there is soil going over the canopy, you're too low!
10-29-2007 11:32 AM
 
 
Havoc
Key Veteran
Location: Ky.

It's not vague exactly, its printed right in the manual. But I called Starwood and they said originally Jak said 15:1 and within the last year or so started using 20:1 so you can run anywhere in-between. Starwood went with the most conservative.
10-29-2007 02:29 PM
 
 
Skeeter Pilot
Senior Heliman
Location: England

What I meant was, vague amounst users of that engine, some people were quoting 7%, that's way different to 15 or 20%.

All the best.
------------

If there is soil going over the canopy, you're too low!
10-29-2007 04:22 PM
 
 
FCM
Elite Veteran
Location: Malaysia

Are you confusing ratios with percent? 20:1 ratio is 5%. Does any turbine need 20% oil mixed into the fuel? That's the same as glow fuel oil ratios.

Paul.
10-30-2007 02:37 AM
HOMEPAGE  
 
 
Skeeter Pilot
Senior Heliman
Location: England

yeah, your right actually. There's so many figures flying about here!! Still there is quite a variation 2.5% to 7%.
All the best,
SP
----------

If there is soil going over the canopy, you're too low!
10-30-2007 02:48 AM
 
 
catwrench
Heliman
Location: Wisconsin

hi guys where are you getting your oil to mix,and what do you prefer?

catwrench
11-17-2007 01:28 AM
HOMEPAGE  
 
 
Havoc
Key Veteran
Location: Ky.

I get it from the airport. BP2380. I don't know about different brands. I just asked for turbine oil. The airport gave me this stuff. I double-checked it with starwood and they said it was fine.
11-17-2007 01:42 AM
 
 
Skeeter Pilot
Senior Heliman
Location: England

Castrol Power1 2T, used to be called Castrol TTS.

Fully synthetic 2 stroke motor cycle oil.
-------------------------------

If there is soil going over the canopy, you're too low!
11-17-2007 02:15 AM
 
 
FCM
Elite Veteran
Location: Malaysia

If you want something that will show the fuel level better, Mobil 254 is a dark turbine oil when compared to most brands. It will cost a bit more though.

Paul.
11-17-2007 05:07 AM
HOMEPAGE  
 
 
catwrench
Heliman
Location: Wisconsin

thanks for the info. on turbine oil catwrench

catwrench
11-17-2007 10:45 AM
HOMEPAGE  
 
 
Héli Suisse
New Heliman
Location: Geneva Switzerland

SkeeterPilot: JetCat doesn't recommand the use of the Castrol TTS (page 6 of the operating manual), for is might not mix well with the kerosene!
02-28-2008 08:54 PM
 
 
MattJen
Key Veteran
Location: UK,Gravesend, Kent

i use Mobil JETOIL, i put in 20ltrs of Parasene into a 25 litre jerry can, and then pour in my 1 quart can of oil. and give it a damn good shake...

I have had no problems using this, the problem i did have was when i used a synthetic oil and not a dedicated turbine oil....

I am sure there is some who would debate it, but i learnt my lesson and stick to a dedicated jet oil, JETCAT recommend Aero shell or BP Jetoil, i use Mobil as motors and rotors sell it..


Matt

I bought my Mother-in-law a chair for xmas, but she wouldn't plug it in
02-28-2008 10:09 PM
 
 
SergioR
Heliman
Location: Portugal

Sorry to desagree...

5% oil content is 5 litres oil for 100 litres of the mix. (5L oil to 95 litres Jet A1).

For 5%, mix 1 litre oil with 19 litres Jet A1.


If you add 1L oil to 20L fuel you'll get a 4,76% mix. I know it works too, but I was just being rigorous

Key factor is using the correct oil.

SergioR
02-29-2008 01:14 AM
 
 
FCM
Elite Veteran
Location: Malaysia

Quote 
but I was just being rigorous
Then you had better take into consideration that turbine oil is sold by the US Quart and is less than 1 liter

Paul.
02-29-2008 01:47 AM
HOMEPAGE  
 
 
SergioR
Heliman
Location: Portugal

lololl

If you use an US quart for 20 litres Jet A1 you'l get a 4,5% mix...

But that works too ...


SergioR
02-29-2008 12:22 PM
 
 
human213
Senior Heliman
Location: malibu

Jetcat's ratio

is 5 percent...but putting 1 liter to 20l of fuel is not...



5 percent would be 1 liter of oil in 19 liters of fuel.


michael

Not everything that can be counted counts, and not everything that counts can be counted.
03-03-2008 07:04 PM
 
 
G-SWSM
Heliman
Location: Midlands, UK

But this is why I always pour in 1L of Turbine oil in my Jerry can, and then take that to the airport to be filled.

This way I'm getting the correct mix ratio, and it is then mixed together when they fill the can.

Steve.W Remember, under no circumstances take a laxative and a sleeping pill on the same night
03-04-2008 04:02 PM
 
 
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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Got Jet Fuel? Turbine Helicopters > fuel oil ratio
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