Can Jet Fuel Freeze?

Is There a Jet Fuel Freeze Point? 

For people beginning to enter the world of aviation, one of the first things that shock them is how cold temperatures reach outside of a cabin during a flight. The freezing temperatures outside of a cabin during a flight used to be a detriment to pilots since gear would freeze and be unusable. Many people who are beginning to learn the ropes of becoming an FAA dispatcher will ask themselves what is the jet fuel freeze point and does it run the risk of freezing and becoming unusable.

Does jet fuel have a freezing point? In the following article, Sheffield School of Aeronautics, an experienced flight dispatcher school, will explore the freezing point of jet fuel. Continue reading below to learn more from one of the top aircraft dispatching schools. 

Is There a Jet Fuel Freezing Point? 

What temperature does aviation fuel freeze at? et A is the most common kind of jet fuel used in the United States. This jet fuel has a freezing point of negative forty degrees celsius. However, like water, jet fuel will not instantly freeze when exposed to this temperature. In fact, many factors influence how jet fuel reacts to being frozen. This includes:

  • The kind of fuel: 
      • As mentioned above, every fuel has different freezing points. This varies from country to country, but the fuel that is most commonly used in the United States is Jet A. The other kinds are Jet A1 and Jet B. 
  • Initial fuel temperature:
      • Like water, if jet fuel is hotter, it will take a longer time to freeze. This is also dependent on which location a plane is taking off from. To illustrate, a plane that is taking off from South Florida will have much warmer fuel than one that is taking off from Siberia. 
  • Outside air temperature:
      • The colder the outside temperature, the faster jet fuel will freeze. 
  • Aircraft speed:
      • As an airplane flies through the air, it experiences friction from the outside air. The higher the amount of friction, the hotter the aircraft will be. A plane that is flying at faster speeds experiences more friction. This causes the fuel to be hotter and buys it time before it freezes. 
  • Quantity of fuel: 
    • A larger amount of fuel will freeze much slower than a collection of fuel that is noticeably smaller. The more fuel there is, the longer it takes to freeze. 
  • Aircraft design: 
    • Some aircraft are designed with hydraulic lines close to the fuel so that the heat will help slow down potential freezing. 
    • There are certain models of aircraft that pump fuel constantly to keep it moving and have it constantly be at a hotter temperature. 

More About Sheffield School of Aeronautics

Can jet fuel freeze? The answer depends on many factors, but it would take extremely cold temperatures and many other factors, like the aircraft’s design and initial fuel temperature, to result in a completely frozen-over reserve of jet fuel. Aside from useful resources like this one, our airline dispatcher school assists students with international flight planning and flight weather planning. Contact us today to learn more about your next flight dispatch course.

This entry was posted in Flight Dispatcher Courses and tagged , , . Bookmark the permalink.
  • Contact Us

    • This field is for validation purposes and should be left unchanged.

  • Testimonials

    “These men represented the highest caliber of professionalism and integrity. The education I received from these gentleman has afforded me to be gainfully employed while having the opportunity to use the education received, all over this country, and more than a few others.” WG sidebar wg
    “As a graduate of the aircraft dispatcher program at the Sheffield School of Aeronautics…My training was intense and thorough and furnished me with the requisite skills for performing my current job as a Flight Dispatch Supervisor.” N.S. Sidebar NS
    “As a graduate of Sheffield School of Aeronautics I am a firm believer that I received the most thorough and well thought out aircraft dispatcher training available. I owe my position in the industry to Sheffield School of Aeronautics.” BF Sidebar BF
    “I am a month into my new job at a airline coming out of reorganization, and am helping the training department by referencing the excellent and up to date course book provided to all Sheffield grads.” RW RW
    “Eric Morris is one of the most if not the most knowledgeable and experienced authorities on Aircraft Dispatching in the United States. He strives constantly to make the industry better.” DH sidebar DH
    “If you want to be the best, first you need to be trained by the best!” P. Hill P.Hill – DHL
    “I entered my profession, with more knowledge and information than dispatchers who have been practicing their craft for more than ten years. Not only has Sheffield provided a top notch education, but they have also instilled in me the confidence to succeed.” A.Z. Sidebar AZ – Student Testimonial
    “While touring my company’s dispatch department before I had my license our OCC manager pointed out that 7 of the 10 dispatchers on shift had come from Sheffield. The overall consensus was that Sheffield grads were able to hit the ground running as they were better prepared.” K.O. Sidebar K.O.
    “After receiving my certificate, I joined a class of 4 experienced dispatchers for Part 121 initial training. Without experience, my preparation at Sheffield enabled me to become active at the same time after the initial training.” PR PR
    “Going to Sheffield prepared me for the real world challenges of Aircraft Dispatching. I certainly believe that the method Sheffield used is one not only for success in a real world career, but also one that prepares students to correctly dispatch aircraft.” T.Z. Sidebar TZ
    “Your school has offered me an incredible advantage in the Dispatcher job market.” D.K. D. Kircher
    “Being that half my new hire class dropped out over the course of training, I can confidently say that Sheffield helped to prepare me for the real world.” GT – abridged testimonial – school selection matters
    Good afternoon Eric, I wanted to reach out to let you know that training at (airline) is in full swing and I couldn’t be happier that I chose Sheffield. My classmates, while very smart, definitely had subpar training and that has been very evident. I have waited to write a full scale review of the […] Attending Sheffield School benefits airline new hires in preparation for airline training
    “I wanted to tell you I got the job offer from Expressjet, and start next month! I think a couple others from class were hired as well. It just shows the Sheffield reputation when I see graduates from other schools complaining that they can’t get an interview – I wasn’t even back home to Minneapolis […] Dan Gustafson
    “Their reputation of excellence amongst the industry is second to none. Sheffield School of Aeronautics should be seen as the standard of how it can be done and how it should be done. I was hired at a major airline with no dispatch experience.” A.Z. Sidebar AZ
  • Online Catalog

    Sheffield Flight Dispatch Training Catalog

  • Connect