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Lombok International Airport is the premier second-class airport located in Tanak Awu, Pujut, Lombok Tengah, Nusa Tenggara Barat which functions to serve transportation services. Lombok International Airport has runway, apron, and two taxiways along with its drainage. The drainage system is needed to prevent puddles of rainwater in the runway, taxiway and apron that can obstruct the aircraft movement. However, looking at the existing condition of the Lombok International Airport’s trunk, it is necessary to conduct research about trunk reconstruction for the next ten years’ time.The research is begun by collecting data such as existing elevation, existing dimension, slope of existing trunk and rainfall data for the last five years. From these data, an analysis of the rainfall plan is carried out using gumbel distribution method. Furthermore, from the results of the analysis, it is obtained the daily maximum rainfall which is used to know the rainwater runoff debit. Re-planning the dimensions of Lombok International Airport’s trunk is carried out to accommodate rainwater runoff debit for the next ten years since the existing dimensions of the existing trunk cannot accommodate rainwater runoff debit for the next ten years. Therefore, it was obtained the design plan for the reconstruction of each segment with a length of 1,2 meters, width of 1,84 meters and height of 1,77 meters. Re-planning the dimensions of the trunk is in precast concrete.

I Gusti Ngurah Rai International Airport, as it is known, is taken from the name of national hero I Gusti Ngurah Rai who is a very influential figure for the people of Bali Island. I Gusti Ngurah Rai International Airport currently has 11 taxiways which are divided into 9 taxiways on the North runway / North (2 parallel taxiways, 2 rapid exit taxiways, and 5 exit taxiways) and 2 taxiways on the South runway. This writing uses primary and secondary data which will be analyzed by descriptive analysis method. Descriptive analysis method is research that is intended to collect information about the status - the status of a symptom that exists, namely the state of symptoms according to what they were when the study was conducted. The author also uses the pavement design application in the form of FAARFIELD and COMFAA to support the research method used. Therefore, to be able to receive loads from aircraft passing through taxiways, it is necessary to calculate the planing of the pavement on the taxiways that will be built so that they are able to withstand the loads that will be received for flight safety and fulfill the age of the plan itself. The new taxiway parallel to the south of the runway needs to be built to support the operational activities of the annual IMF (International Monetary Fund) activities and taxiway overlaying in all North taxiways. In addition, it is expected to reduce the number of aircraft carrying out cross runways from the southern apron to the northern apron or to the northern taxiway parallel.

Pesawat terbang merupakan aplikasi ilmu mekanika fluida yang sangat memperhatikan aspek aerodinamika karena berkaitan dengan performa pada penerbangan. Satu hal penting yang harus diperhatikan dalam pendesainan suatu pesawat yaitu pemilihan airfoil dan modifikasinya. Modifikasi airfoil dilakukan untuk menunda separasi aliran dan meningkatkan performa airfoil, salah satunya dengan vortex generator. Modifikasi pada airfoil dilakukan untuk meningkatkan performansi dari airfoil. Hal ini dapat diindikasikan dengan tertundanya separasi aliran yang melintasi permukaan atas dari airfoil. Dengan tertundanya separasi ini maka gaya lift akan semakin besar dan gaya drag akan semakin kecil. Penelitian sebelumnya menunjukkan bahwa penambahan vortex generator pada permukaan atas airfoil dapat menunda terjadinya separasi aliran. Hal ini disebabkan aliran lebih tahan melawan gaya gesek dan adverse pressure gradient. Topik yang dikaji dalam penelitian ini adalah aliran melintasi airfoil NACA 43018 dengan penambahan vortex generator. Airfoil NACA 43018 digunakan pada sayap pesawat terbang ATR 72. Tujuan penelitian ini adalah untuk membandingkan karakteristik aliran fluida dengan dan tanpa penambahan vortex generator. Profil vortex generator yang digunakan adalah rectangular flat plate vortex generator dengan konfigurasi straight dan ditempatkan pada x/c = 10% dan 20% arah chord line dari leading edge. Variasi yang digunakan adalah bilangan Reynolds (Re) dan sudut serang (α) pada airfoil. Kecepatan freestream yang digunakan yaitu kecepatan 12 m/s atau Re = 7,65 x 105 dan kecepatan 17 m/s atau Re = 9 x 105, dan pada sudut serang (α) 0o, 3o, 6o, 9o, 12o, 15o, 19o, dan 20o. Parameter yang dievaluasi meliputi koefisien tekanan (Cp), profil kecepatan, lift, drag, dan rasio CL/CD. Hasil penelitian ini menunjukkan bahwa terjadi peningkatan performansi dari airfoil NACA 43018 dengan penambahan vortex generator dibandingkan dengan tanpa vortex generator. Adanya vortex generator, dapat menunda terjadinya separasi. Dengan penambahan vortex generator terjadi peningkatan lift sekitar 5% dan menaikkan drag sekitar 1,5%. Rasio CL/CD meningkat sekitar 5 %.

Characteristic of viscous flow through a contour always become the interesting topic to be studied. This research studied characteristic of turbulent viscous flow through a flat plate mounted by bump. Target of this research is to know the flow characteristic through the semicircle, triangle and quadrangular bump, and also to get distribution coefficient of pressure (Cp), separation point, coefficient of pressure drag (CDp) and coefficient of total drag (CD). Beside that, in this research also conduct smoke visualization to know visualization of turbulent viscous flow through a flat plate mounted by bump. This experiment is conducted in subsonic wind tunnel. Form of the bump that is used are semicircle, triangle and quadrangular, and free stream velocity equal to 9.75 m/s and 15.5 m/s. Pressure coefficient got from static pressure measurement over flat plate and bump by using wall pressure tap. Coefficient of pressure drag (CDp) got from calculation based pressure. The measurement of velocity profile over flat plate and bump by using pitot tube. Measurement conducted at 6 point before side of upstream bump, 1 point at top bump and 13 point after side of downstream bump where distance between the points are 20 mm. While for the direction of vertical, the measurement taken at 80 point started from height 80 mm from surface until near the surface. Existence of bump on flat plate result the flow becomes separation so that generate the total drag force addition over flat plate. The highest total drag force occured on flat plate with triangle bump, then on flat plate with quadrangular bump and the smallest occur on flat plate with semicircle bump.

Pada jam operasional Bandara Internasional Sultan Aji Muhammad Sulaiman Sepinggan Balikpapan sering dijumpai komplain pihak terminal bandara dan pihak tenant yang memberitahu teknisi listrik tentang masalah tidak adanya power listrik menyuplai beban di suatu titik terminal bandara. Untuk menanggapi hal tersebut, seorang teknisi harus menuju ke lokasi untuk melakukan pengecekan. Hal yang dilakukan teknisi ini dipandang kurang efisien karena belum adanya kontrol dan monitoring jarak jauh secara otomatis menggunakan PC. Untuk mengatasi hal tersebut, penulis bermaksud untuk merancang sebuah alat kontrol dan monitoring panel LVSDP secara otomatis menggunakan mikrokontroller dengan bantuan sensor arus ACS-712 dan sensor tegangan H11AA1. Setelah diketahui nilai arus dan tegangan yang menuju ke beban selanjutnya akan ditampilkan pada PC menggunakan software Visual Basic sebagai Human Machine Interface.