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- Business Model for Air Transportation in Specific Market SegmentsPublication . Cruz, Inês Ramos da; Silva, Jorge Miguel dos ReisSince the beginning of times, humanity has needed transportation of goods, people or animals. As technology advanced and changed, the user's demand was modified. Hence new means of transportation started arising and airships, for instance, have been getting an increasing amount of attention, mostly due to the fact that aeronautical entities have been concerned with adopting environmentally friendly technologies. In this century, airships started to have their fair share of distinct uses: advertisement, surveillance, monitoring, investigation and tourism. In this dissertation another use was analysed, this was logistics freight transportation to inquire if it would be a practical alternative to road transportation and if it could counter some of the nowadays’ restraints found in logistics such as poor street conditions, interdiction to the circulation of some vehicles in certain areas, and traffic congestion. In this thesis, it was shown how using airships for freight and consequently its role in terms of logistics’ distribution is feasible. To do so, the vital elements of a business plan and model were analysed, the network route optimisation methodologies were studied and an approach to a case study based on a real company’s operation in the national market was made. The results confirmed the viability of the initial assumptions corroborating the advantages (along with the challenges) of using airships in the logistics chain of freight transportation.