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-   -   Fairey Gannet's Double Mamba (http://forum.12oclockhigh.net/showthread.php?t=1125)

Nonny 19th April 2005 16:26

Fairey Gannet's Double Mamba
 
The Fairey Gannet's Double Mamba engine
http://www.warbirdalley.com/gannet.htm
could run on marine diesel. How did it achieve this?

Ruy Horta 19th April 2005 16:31

Re: Fairey Gannet's Double Mamba
 
The Gannet used a turboprop, isn't jet fuel, like J2 as used for the Jumo 004, close or even practically the same as ordinary diesel?

The Su 25 is reported to run on about every type of fuel you could find at a regular roadside fuel station, that's even more impressive!

robert_schulte 19th April 2005 17:44

Re: Fairey Gannet's Double Mamba
 
Kerosine is a hydrocarbon fraction that typically distils about 100 C lower than that of Diesel.
The major use for kerosines today is for aviation turbine (jet or turboprop) fuels. Since for jet fuel (such as the civilian Jet A1) and Diesel special properties are required for their application, various additives are added. Jet fuel for example has to meet a high flash point for safe refuelling, low freezing point for high altitude flying, and good water separation characteristics.
If I recall correctly, the main disadvantage of Diesel fuel compared to kerosene is its much higher freezing point of about -20 C vs. – 50 C and lower for Jet A1.
I guess this disadvantage could be met with a heated fuel tank???

Franek Grabowski 19th April 2005 19:54

Re: Fairey Gannet's Double Mamba
 
IIRC The problem is overcome by appropriate mix of oil and petrol. Also, use of thin spirit is possible, though not very liked by the crew. ;)

Nonny 20th April 2005 13:15

Ju86 diesel engine
 
Since diesel is easier to produce, cheaper and safer than petrol, could more use or development of diesel engines have been made in WWII eg the Ju86?
http://www.csd.uwo.ca/~pettypi/elevo...ther/ju86.html


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