Pendekatan reka bentuk itu berbeza-beza menurut keinginan seseorang dan kriteria dipertimbangkan. Dalam projek rekaan Hand launch UAV, buku “Airplane Design” oleh Dr Jan Roskam telah digunakan sebagai rujukan. Menurut buku “Airplane Design”, pensaizan Preliminary adalah langkah pertama dalam reka bentuk konseptual bagi kapal terbang serta UAV. Keputusan keseluruhan pensaizan awal boleh dibahagikan kepada untuk dua kategori, iaitu berat dan prestasi. Keputusan bagi pensaizan berat adalah berat perlepasan, berat kosong, berat bahan api misi bagi UAV. Manakala, pensaizan prestasi adalah bagi mencari maksimum memerlukan perlepasan kuasa dan luas sayap untuk UAV dengan menentukan lif maksimum pekali pada setiap profil penerbangan. Tesis ini menggambarkan kaedah dan proses bagi pemerintahan hubungan untuk kelompang UAV berat dan berlepas berat, dan “plot padan" pada memberi keperluan akan dipenuhi. Kaedah rekabentuk dalam pensaizan awal untuk pelancaran Hand UAV digambarkan dalam reka bentuk Airplane: Buku pensaizan awal oleh Dr Jan Roskam. Hasil pensaizan permulaan telah bertemu menugaskan syarat-syarat teknikal di mana maksimum berlepas berat UAV tidak lebih daripada 5kg dengan berat kosong 3.4kg. UAV menyerang ketinggian 100m dengan kelajuan 50km / h dan maksimum belayar kelajuan 80km / h.
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Nowadays, there is still no one standard procedure to design Unmanned Aerial Vehicles. The design approach varies according people and criteria to be considered. In this Hand Launch UAV design project, book of Airplane Design by Dr. Jan Roskam used as primary reference approach. According to Airplane Design, Preliminary sizing is the very first of in conceptual design of airplane as well as UAV. Preliminary Sizing is the first phase to be carried before further design process going on. The overall result of preliminary sizing can be divided into to two categories, which are weight and performance. The results of weight sizing are gross take-off weight, empty weight, mission fuel weight of UAV. Whereas, the performance sizing are to find the maximum required take-off power and wing area for UAV by determine the maximum lift coefficient at different mission profile. This thesis describes the method and process of governing of relationship for UAV empty weight and takeoff weight, and “matching plot” at given requirement to be fulfilled. The design method in initial sizing for the Hand launch UAV is described in Airplane design: Preliminary sizing book by Dr Jan Roskam. The result of the preliminary sizing has met the assigned technical requirements in which the maximum take off weight of the UAV do not more than 5kg with empty weight of 3.4kg. The UAV flies at height of 100m with speed 50km/h and maximum cruise speed of 80km/h.
Conceptual design of hand-launch uav_Tang Kia Wei_A2_2009_NI