Unmanned aircraft or known as UAV (Unmanned Aerial Vehicle) is an aircraft technology that is controlled ly by the operator using  Control. The thrust is determined according to the needs of the aircraft itself. This study uses a thrust test stand that uses a mass measuring device as a measuring force, using a brushless motor and 3 different types of propellers, namely propeller two with a size of 8 x 4 inches and 10 x 7 inches, three propellers with a size of 6 x 3 inc to determine the optimal thrust for missions flying -controlled model aircraft (UAV). After testing, it was found that the smallest thrust force of the 6x3 inch blade type propeller, on this type of propeller only 3,874 N of thrust is produced at 100% throttle percentage and uses a 3 cell battery. While the greatest thrust generated from the propeller with a type of two when 10x7 inches, on this propeller and using a 4 cell battery can produce a Thrust of 13,194 N with a percentage of full throttle or 100%. The thrust required for the aircraft to fly cruising in the air is 0.806 N, while the thrust required for the aircraft to take off is 6.513 N.Keywords: Control Model Aircraft, Propeller, Thrust

Penelitian ini dilakukan dengan memanfaatkan kombinasi pompa hidram dengan pompa vakum yang ramah lingkungan tanpa menggunakan energi listrik dengan efesiensi yang tinggi. Desain Kombinasi Pompa Vakum dengan Pompa Hidrolik Ram menggunakan sofware Auto CAD dan sofware Sketchup. Dengan ukuran diameter pompa vakum 58 cm, tinggi tabung pompa vakum 93 cm, dengan kapasitas volume tabung pompa 220 liter, tinggi pompa hidram 85 cm, dengan lebar pompa hidram yaitu 50 cm. Hasil rata untuk tiga kali pengujian dalam waktu 10 menit volume air yang keluar rata-rata sebanyak 15 liter, dengan debit 1,5 l/m, dan head losses nya 0,02 m. tahap kedua dalam waktu 30 menit volume air yang keluar rata-rata dari tiga kali pengujian sebanyak 46,1 liter, dengan debit 1,53 l/m, dan head losses nya 0,01 m, dan tahap ketiga dalam waktu 60 menit volume air yang keluar sebanyak 92,6 liter, dengan debit 1,54 l/m, dan head losses nya 0,01 m. Dari hasil pengamatan maka metode ini mendapatkan kontinuitas yang baik dan dari nilai loses yang diperoleh maka efesiensi pompa tersebut cukup tinggi.

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Perkembangan teknologi pengolahan buah kelapa menjadi santan untuk industri skala Usaha Mikro Kecil dan Menengah masih menggunakan mesin pengolahan yang terpisah antara pemarutan dan pemerasan sehingga dinilai masih belum efektif dan efisien. Tujuan dari penelitian ini adalah untuk memanufaktur dan menguji kinerja mesin produksi santan. Tahapan penelitian dimulai dari proses manufaktur terhadap mesin produksi santan terintegrasi pemarutan, uji fungsional terhadap komponen, dan perhitungan terhadap biaya produksi per unit mesin. Hasil penelitian menunjukkan bahwa mesin produksi santan hasil fabrikasi mempunyai daya 0,75 Kw, putaran maksimum poros 2850 rpm dan dimensi mesin 600 x 600 x 1200 mm. Kapasitas mesin produksi santan 10 liter per jam. Hasil pengujian secara visual menunjukkan bahwa mesin produksi santan dapat berfungsi dengan baik pada putaran 1000 rpm, 1500 rpm, 2000 rpm, dan 2500 rpm. Total biaya produksi satu unit mesin produksi santan jenis sentrifugal dengan kapasitas produksi 10 liter per jam adalah Rp. 4.760.000,-Kata kunci: buah kelapa, santan, gaya sentrifugal, uji fungsional, biaya produksi

The wind energy as an alternative in the use of renewable energy has the potential to increase income for the capital, where the potential for wind in the area of Meulaboh, west Aceh, which is 11 km/h, on average can be used for electrical energy needs specially for low wind turbine power, This is research is designing and manufacturing wind turbine propellers. Wind type Lenz cupped type, the number of propellers as much as 3 (three) pieces. The design method is carried out by using Sketch Up software, the final result is in the form of a 3-D image and in the manufacturing process method is making the wind turbine propeller with the method hand lay up for the materials using are fiberglass as a matrix and resin as a reinforcement or known as composite materials. And to obtain the results, a test was carried out in the form of a propeller ability test in driving a generator. With the generator output was 100 W. The test was carried out at the location of Teuku Umar University in an integrated building, precisely on the rooftop with a height of build ± 50m. On the sea level. The results obtained after testing the wind speed amounted to 18.4 mph. average during testing 3 (three) days, and the average results of the propeller turbine rotation of 39.8 rpm. Key words: wind energy, energy alternative, composite materials, hand lay up, wind speed, propeller turbine rotation