Fuel Planning for commercial Aircrafts
Reference: http://www.skybrary.aero/index.php/Fuel_-_Regulations
I have questions regarding the Fuel carried on board a commercial aircraft. I have expanded what is given in the above link so as to make sure my understanding is correct. I have bullet-ed the questions at the end of this passage. I have tried to present this lengthy passage very precisely not to confuse the readers. ::: A - When a destination alternate aerodrome is required x1) 1.Fuel for Destination ( including Approach,Landing,missed approach). + 2.Fuel for alternate aerodrome specified in the operational and ATS flight plans (Including approach and Land). +3.Fuel to fly for 30 minutes at holding speed at 450 m (1 500 ft) above the alternate aerodrome under standard temperature conditions. +4.Contingency fuel (Reserve Fuel) specified by the operator to the satisfaction of the State of the Operator , normally 5% of Trip fuel; OR X2) 1.Fuel to fly to the alternate aerodrome via any predetermined point(Including approach and Land). + 2.Fuel for 30 minutes at 450 m (1 500 ft) above the alternate aerodrome. + 3.Contingency fuel (Reserve Fuel) specified by the operator to the satisfaction of the State of the Operator , normally 5% of Trip fuel; provided that fuel shall not be less than the amount of fuel required to fly to the aerodrome to which the flight is planned. + Fuel to destination (Approach and Landing) 4.Fuel for two hours at normal cruise consumption. ::: B - When a destination alternate aerodrome is NOT required 1.Fuel for destination Aerodrome. (Including Approach and Landing). + 2.Fuel to hold for 30 min at destination aerodrome @ 1500 feet / 450m under standard temperature and conditions. + 3.Contingency fuel (Reserve Fuel) specified by the operator to the satisfaction of the State of the Operator, normally 5% of Trip fuel; OR 1.Fuel for destination Aerodrome. + 2 hrs of fuel for cruise under normal fuel consumption. Questions: ----------- 1. The ::::A,X2) defined above(that is the 'OR' part)when do we use this ? 2. What do you mean by fuel to fly to alternate via per-determined points ? Refer ::::A,X2) Point 1. 3. Why Alternate is mentioned initially instead of Destination Aerodrome ? Any significance for that ? Refer ::::A,X2) Point 1. 4.Does the part that is highlighted in green explains points 1+2+3 should not be less than Trip fuel ? Refer ::::A,X2) Point 3. 5.The only difference between the 1st and 2nd options separated by an OR part in :::A section is "Fuel for two hours at normal cruise consumption". what do we gain from it ? , who will select the second option since it will increase the weight of the aircraft and degrade the commercial Performance. |
You have posted EXACTLY the same question in at least 3 different forums.
The Mods will not like this. Pick one forum and stick to it. |
can you reformat your post.... its pretty unreadable.
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