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halwatk
15th Mar 2017, 21:47
I have a question on fuel planning. In all the various components of fuel planning: trip fuel, contingency, alternate, etc. in which component is the amount of fuel needed for one or two go arounds at destination before heading for the alternate accounted for?

cappt
16th Mar 2017, 00:00
If your talking about part 121 then FAR121.639 would govern.
Every operator will have their own FAA approved FOM or "procedures manual". In this manual will be a section on fuel planning. A typical fuel planning section will say something like this.
Fuel Requirements.
No person may take off an airplane unless it has enough fuel:
To fly to the airport to which it is dispatched.
Thereafter, fly to the most distance alt. airport.
Thereafter, fly for 45 minutes at normal cruising fuel consumption.
Fuel required for dispatch must consider the following:
Wind and weather conditions forecast.
Traffic delays.
One instrument approach and missed approach at the destination.

The dispatcher determines the minimum fuel.
Contingency fuel is determined by the dispatcher.

Clear as mud right?

zondaracer
16th Mar 2017, 01:52
An alternate isn't always required. Usually we don't file alternates if weather conditions are favorable.

Having said that, our fuel computation includes:
Taxi out
Fuel burn
Reserve
Contingency
Hold fuel (if you think you will have to hold)
Alternate fuel (to get to your alternate if you have one)
Taxi in

Contingency is usually where the go around fuel is added.

Piltdown Man
16th Mar 2017, 06:32
The Trip fuel takes you to down the approach. The Alternative fuel has an allowance for a single go-around at your destination.

PM

halwatk
16th Mar 2017, 20:28
Thank you. Having researched this a little its amazing how much variability there is from airline to airline, FAA, EASA, etc.

juliet
17th Mar 2017, 02:39
Our operation - A-B fuel includes fuel to the missed approach point. B-C includes fuel from the missed approach point onwards to C. If you want additional fuel for an extra approach then it is added, as a minimum, from the standard allowances, which detail the amount for a missed approach followed by an approach from the overhead (worst case scenario). That extra amount obviously gets you back to the missed approach point a second time without having touched the original B-C fuel.