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Reduced Contingency Fuel (RCF) Procedure

 
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K.Haroon
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PostPosted: Tue Aug 20, 2013 8:38 pm    Post subject: Reduced Contingency Fuel (RCF) Procedure Reply with quote

The Reduced Contingency Fuel (RCF) Procedure

The RCF procedure (Previously the 'Decision Point Procedure') offers additional flexibility in fuel planning for an operator.

The procedure makes use of an en-route alternate (ERA) and a Decision Point (DP).

The ERA provides an optional refuel destination.

The RCF procedure reduces the minimum fuel required for the sector by reducing contingency fuel.

Thus reducing fuel helps in increasing the payload.



The amount of fuel required should be the greater of the following two calculations:

Arrow Calculation 1

A Total of:

Taxy fuel

Sector fuel (to destination via DP)

Contingency (5% of trip DP to destination)

Alternate

Final reserve + Additional Fuel + Extra Fuel


Arrow Calculation 2

A Total of:

Taxy fuel

Sector fuel (to ERA via DP)

Contingency (Departure to ERA via DP) + Alternate

Final reserve

Additional Fuel

Extra Fuel


Use of the RCF procedure requires the approval of the Authority.

When and exactly how an operator can use the procedure will be contained in the Aircraft Operations Manual.


An Example of RCF Procedure

An aeroplane is to operate a route from London to Toronto with Ottawa as the alternate.

The route overflys Goose Bay.

Because of payload and performance restrictions, the fuel load on take-off from London is limited to only 73,000 kg.

Normal calculation gives the following fuel plan:

Trip Fuel to Toronto 62,000 kg

Contingency 5% is 3100 kg

Alternate (Ottawa) 3600 kg

Final Reserve 6000 kg

TOTAL FUEL 74,700 kg

This exceeds our plan limit as we have room for only 73,000 kg without unloading passengers.

Now apply the Reduced Contingency Fuel (RCF) procedure using Goose Bay as our ERA.

Calculation 1:

Trip Fuel to Toronto via DP 62,000 kg

Cont 5% DP to Toronto only 1000 kg

Alternate (Ottawa) 3600 kg

Final Reserve 6000 kg

TOTAL FUEL 72,600 kg


Calculation 2:

Trip Fuel to Goose Bay via DP 54,700 kg

Contingency (5% of Trip) 2735 kg

Alternate (St Johns) 2300 kg

Final Reserve 6000 kg

TOTAL FUEL 65,735 kg

From the two totals, we must take the higher value i.e. 72,600 kg.

This is within our 73,000 kg limit.
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