The Complex World Of Minimum Fuel Requirements And How Are They Defined

The fuel carried by aircraft is highly regulated. For those outside the industry, it might be believed that an aircraft carries only the fuel that is required to fly from one airfield to another airfield. But it’s not entirely true as aircraft, under commercial operations, carry a lot more than that. Let’s look at all the fine details in today’s video!
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[@NBLCGBLN]

I knew about trip fuel and emergency fuel. This rest is new

[@Soordhin]

Contingency fuel can be also calculated based on statistical fuel requirements. For example for a given city-pair at least a minimum amount of flights have to be done, during which the normal contingency fuel measures will be planned. After that the highest amount of burned contingency and extra fuel in a certain percentage (usually 90%, 95% and 99% with the highest 10%, 5%, 1% of fuel used removed) of flights will be calculated and used as contingency fuel, provided that value is not less than a certain absolute minimum, for example 5 minutes of level flight in 1.500ft above destination. Usually the 95% statistical contingency fuel is used, but the other values provided to the flight crew for information.

[@nomore-constipation]

I feel like this was the exact explanation my dad gave to his copilot on how he planned our trip when we drove across the country The part missing from the video was when mom copilot just said he should just fill up the tank and let's get going and stop over analyzing it

[@Mr.Manutulila]

😂😂😂😂

[@yohanmaduranga]

We need more videos like this thanks 👍

[@nurrizadjatmiko21]

I know some and very interesting🤔. Excellent explanation👍👍

[@grahamrothphotography]

Airport in my city (yeg) has cheap fuel, flights tanker a lot, aka more fuel so they require less fuel for the next flight, usually when the destination has expensive fuel

[@jeaviation-v3v]

I had no idea the only thing I knew was that the fuel was calculated by the weight and the distance to destination

[@tpr1808]

This is good for aspiring pilot like me

[@eamonahern7495]

Recently, there was a simple flying video on short haul wide body flights. I wonder what the fuel requirements are for those. I suspect the plane would be very light.

[@pesawatindonesia]

superb ❤❤❤

[@sainnt]

So many times I've seen pilots doing a series of calculations when passengers are boarding a plane. I imagine that this is one of the most important calculations. Great video and insight about this subject matter. It's nice to know just how critical this is.

[@Soordhin]

That is usually the performance calculation. The fuel calculation is usually prepared with the OFP (operational flight plan), either entirely computer generated or by a qualified dispatcher, and the flight crew only has to check if the routing makes sense (if it doesn't, a recalculation is required), and how much extra fuel they want to take. That has to be done quite early in the briefing so that the correct required fuel can be told to the fuel supplier who has to make sure that requirement is fulfilled, again, checked by the flight crew against remaining fuel before fueling, specific gravity of the fuel and indicated fuel in tanks after fueling.

[@tpr1808]

@@Soordhin helpful info over there

[@cellpat2686]

As a fueler all I get is the final load. We have a window of minus and plus pounds the plane can have after it is fueled, provided we put in it what is requested. We are also told to plus the load a little bit more (depending on destination and plane size.) This is a very interesting brief you have produced, but I would like it more if you included the equivalent standard measurements along with metric. You can show them on the screen. Good job and thank you for explaining it out.

[@markcarson853]

Aerodrome?

[@brettharding414]

Stop saying aerodrome!

[@tylerduchesneau]

The Gimli glider incident was not the pilots that did the calculations incorrectly. I the pilots gave the right numbers to the fueler. The fueler didn’t do the right conversion.

[@ATLMike94]

Well even after the fueling was complete the pilots agreed with the fueler's calculations. Which is why the fueler and the pilots were all suspended.

[@jeffayoe7468]

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