Ecological Transport Information Tool for Worldwide ... - Schenker

IFEU Heidelberg, Öko-Institut, IVE, RMCON Page 69
Table 42
Characteristics of selected aircrafts
Type
Distance
Group
Type of
aircraft
Aircraft
code
Design
Range
(km)
Max. Payload
(t)
Typical
Seats
(number)
Freighter Short haul Boeing 737-200C B732F 2,240 17.3
Freighter Medium Haul Boeing 767-300F B763F 6,025 53.7
Freighter Long haul Boeing 747-400F B744F 8,230 112.6
Belly Freight Short haul Fokker 100 F100 3,170 1.0 85
Belly Freight Medium Haul Boeing 757-200 B752 7,222 4 200
Belly Freight Long haul Boeing 747-400 B744 13,450 14 416
Sources: Lang 2007; Lufthansa Cargo 2007..
As mentioned mainly high value volume or perishable goods are shipped by air freight and the
permissible maximum weight is limited. Therefore only the category volume goods is included
within the EcoTransIT World tool. Other types of goods (bulk, average) are not available. The
load factors used for volume goods differentiated by short, medium and long haul are contained
in chapter 3.2.3.
5.5.2 Energy consumption and emission factors
Specific energy consumption and emissions of air cargo transportation depend heavily on the
length of the flight. This is caused by different energy needs in different phases of flight. For
example the take-off has the highest specific energy demand. Its share of the total flight obviously
declines as the length of the flight increases. Hence EcoTransIT World contains fuel
consumption and emission data of each airplane including their flight distance dependence.
Furthermore, energy consumption and emissions depend on utilization of the capacity of aircrafts
(load factor). Whereas this dependency is considered by road transport, this was not
able for aircrafts due to lack of available data. But the possible error is small and from there
justifiable.
The basis of fuel consumption and emission data is the CORINAIR Emission Inventory
Guidebook /EEA 2006/. This guidebook includes detailed information of fuel burned as well as
NOx and HC emissions associated with discrete mission distances and for approximately 20
different turbojet aircraft types. The CORINAIR database uses modelled data derived from the
aircraft performance model PIANO3. The data of the CORINAIR Guidebook was applied in
different emission calculation tools and handbooks /ICAO 2008, DEFRA 2008/ and it is also
used for EcoTransIT World. In this context, it has to be taken into account that the CORINAIR
data is based on an average fleet. The calculated values may be 10% below or above the real
fuel consumption and emissions of individual aircrafts connecting a concrete city pair /ICAO
2008/. Although most air carriers have detailed information of their fuel consumption and
emissions, this data is not made available to the public. Thus the CORINAIR data is the best
publicly available data source for the purpose of EcoTransIT World.
Table 43 shows CORINAIR energy consumptions for aircrafts selected for the standard modus
of EcoTransIT relating to discrete travel distances. Fuel data of other aircrafts covered by
EcoTransIT can be found in Table 59 in the annex. Since CORINAIR database contains only
EcoTransIT World: Methodology and Data – July 15 th , 2010