1. Maximum take-off mass estimation of a 19-seat fuel cell aircraft consuming liquid hydrogenMaršenka Marksel, Anita Prapotnik Brdnik, 2022, original scientific article Abstract: In this paper, the maximum take-off mass (MTOM) of a 19-seat fuel cell aircraft with similar
characteristics to a conventional 19-seat aircraft is estimated using the combination of a rapid method
and semi-empirical equations. The study shows that the MTOM of a 19-seat fuel cell aircraft with
current technology would be 25% greater than that of a conventional aircraft. However, with the
expected technological improvements, the MTOM of a 19-seat fuel cell aircraft could reach lower
values than that of a conventional aircraft. The most important parameter affecting the MTOM of
fuel cell aircraft is the power-to-weight ratio of the fuel cells. If this ratio of fuel cell aircraft does
not improve significantly in the future, fuel cell aircraft with lower power loading will become the
preferred choice; thus, certain trade-offs in flight performance, such as a longer takeoff distance, will
be accepted. The study provides the basis for further economic analysis of fuel cell aircraft, which
has yet to be conducted.
Keywords: fuel cell aircraf, general aviation, turboprop aircraft, all-electric aircraft
Published in DKUM: 13.03.2025; Views: 0; Downloads: 2
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3. Expansion of airport capacity at London Heathrow airportMilan Janić, 2004, original scientific article Abstract: Civil aviation has been confronted with the problem of matching its capacity to growing demand long term. This has been a particularly important issue at some large European and U.S. airports where increasing operational, economic, and, particularly, environmental constraints have affected expansion and development. The long-term matching of capacity to demand at London Heathrow Airport in England is discussed. This analysis includes predicting airport demand relative to annual number of aircraft movements and number of passengers, designing solutions for providing capacity, and generating scenarios for long-term matching of capacity to demand. The results indicate that until the year 2020 the airport will permanently struggle with congestion both airside and landside.
Keywords: civil aviation, airport system, airport capacity, London Heathrow airport, aviation
Published in DKUM: 05.06.2012; Views: 1311; Downloads: 147
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4. Liberalisation of European aviation : analysis and modelling of the airline behaviourMilan Janić, 1997, original scientific article Abstract: This paper deals with the analysis and modelling of behaviour of the Western European airlines during the first phase of the gradual liberalisation of the EU (European Union) aviation market. The framework for monitoring this behaviour and appropriate methodology for registering significant changes in the airline industry, specific airlines, and the aviation market itself has been developed. Three classes of empirical models have been estimated: airline growth and financial performances, airline mergings and alliances by holding of equity stakes in partners, and airline relationships (cooperation and/or competition) on the EU air route network consisting of five sub-models. The EU airline sub-models are: market share, market concentration, air travel demand, quality of services, and pricing policy. The least-square regression technique has been applied over the cross-sectional data for making the empirical estimates.
Keywords: European aviation, liberalisation of the aviation market, Wester European airlines, externalities
Published in DKUM: 05.06.2012; Views: 1467; Downloads: 104
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5. An assessment of risk and safety in civil aviation - dialogue from the black boxMilan Janić, 2000, review article Abstract: Risk and safety have always been important considerations in civil aviation. This is particularly so under current conditions of continuous growth in air transport demand, frequent scarcity of airport and infrastructure capacity, and thus permanent and increased pressure on the system components. There is also the growing public and operators' awareness of these and other system externalities such as air pollution, noise, land use, water/soil pollution and waste management, and congestion. This paper offers an assessment of risk and safety in civil aviation. It deals with general concept of risk and safety, describes the main causes of aircraft accidents and proposes a methodology for quantifying risk and safety.
Keywords: risk, safety, civil aviation, externalities
Published in DKUM: 05.06.2012; Views: 1528; Downloads: 42
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