Description
JP*4 is an abbreviation for Jet Propulsion, A1, Colonial Grade *4″
During the refining process only *5% of the crude oil is made up of
JP*4 the rest of the grade is used for different types of
plastic.
Developed by JP Morgan, Colonial grade JP*4 was replaced by AVGAS
also known as AVGAS**0LL, its the number one low sulphur content
kerosene used worldwide. Its gasoline!
JP*4 powers gas turbine aircraft engines. Jet A and A*1 have
specifications that can be used in fuel worldwide. Jet B is used in
cold weather elements. Commonly a number of different mixtures make
up jet fuel and this relates to flash points and how the carbon
numbers are distributed.
Actually most jet fuel exported from Russia etc. is JP*4 or
Colonial JP*4. It is similar to Jet A except the the Specific
Energy is *8.4 mj/kg compared to that of *2.8 mj/kg of Jet A.
Also there is a slight difference in additives. The jet fuels come
in a number of flavors. There is a **0+ page handbook needed to
specify them all. However, all the jet fuels relate to additives to
A1, which allows the plane not to leave a white tail in the sky
showing where a plane has been.
Jet fuel is kerosene, and not a distillate like Gasoil/ Diesel. In
the refinery, it separates above gasolines and parafins.
So, no airline will ever purchase JP*4, there is no trading desk
that will trade JP*4 and you will find no oil company that sells
JP*4. They will sell Aviation fuel A1 enhanced to a variety of
specifications, most usual, the Colonial Grade *4. There is no
ticker on the commodity exchanges for JP*4 to allow you to see the
market value of the product.
There is no special temperature considerations to consider.
Remember that at *0,**0 feet it is **6 Centigrade more or less
regardless of where you are and the season. The only problem
related to temperature is when you fill in a wet, hot climate, the
air you take along in the same tanks contains a lot of water that
condenses and forms spiking ice crystals that will destroy the jet
turbine. The airlines will fix this with additives, usually fatty
acids.
