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Impact of the fuel mixture ratio of AVGAS 100LL and RON 92 fuel on combustion characteristics Sabam Danny Sulung; Daniel Dewantoro Rumani; Ikhwanul Qiram; Muhammad Nur Cahyo Hidayat Nasrullah; Untung Lestari Nur Wibowo
Journal of Science Technology (JoSTec) Vol. 5 No. 1 (2023): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v5i1.478

AVGAS 100LL is an aviation fuel used in piston engine aircraft, particularly in training aircraft such as the Cessna 172S with Lycoming engines. The use of lead in this fuel can have various health-related concerns. Therefore, reducing the use of leaded fuel has become a solution to address these issues. This study aimed to investigate the combustion characteristics of AVGAS fuels, including AVGAS 100%, AVGAS 75% + PERTAMAX 25%, and AVGAS 50% + PERTAMAX 50%. The research involved conducting combustion tests using a Bunsen burner. The results showed that the addition of PERTAMAX to AVGAS significantly influenced the temperature, color, flame height, and flame area produced. The temperature values were higher for AVGAS 100% compared to AVGAS mixed with PERTAMAX. On the other hand, the flame height and flame area were lower for AVGAS 100% compared to the blended fuels. These findings indicate that the addition of PERTAMAX affects the combustion characteristics of AVGAS fuels. Further studies are recommended to explore and expand our understanding of the effects of blending AVGAS with alternative fuels.

Performance Tests of Cessna 172S Magnetos Under Various Thermal Conditions Muhammad Nur Cahyo Hidayat Nasrullah; Sabam Danny Sulung; Untung Lestari Nur Wibowo; Ikhwanul Qiram
Journal of Science Technology (JoSTec) Vol. 5 No. 1 (2023): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v5i1.628

Magneto serves as the ignition source in the combustion process of piston aircraft engines. Typically, spark-ignition aircraft like the Cessna 172SP are equipped with two ignition systems (dual magnetos). Dual magnetos are installed so that if one system fails, the aircraft can still continue its flight. During the engine startup process, the magneto plays a significant role as the ignition source for the initial combustion before the aircraft engine comes to life. In the case experienced by pilots at the Indonesian Civil Pilot Academy Banyuwangi, starting the engine became challenging when the aircraft had been previously used for a flight. Therefore, this research is conducted to address the underlying causes of this issue. The parameters examined in this research include outside air temperature (OAT), Cylinder Head Temperature (CHT), and Exhaust Gas Temperature (EGT). Data were collected regarding the duration of the engine startup process. The duration time for starting the engine was found to be the highest at an exhaust gas temperature of 135 °F, a cylinder head temperature of 180 °F, and an outside air temperature of 35 °F, with a duration time of 6.8 seconds. Conversely, the shortest engine startup duration was observed at an exhaust gas temperature of 75 °F, a cylinder head temperature of 75 °F, and an outside air temperature of 26 °F, resulting in a duration time of 1.6 seconds.

Studi Kecepatan Pembakaran Laminar dan Tinggi Api Premix Avgas 100 LL dengan Variasi Ekuivalen Rasio Nasrullah, Muhammad Nur Cahyo Hidayat; Kustanto, Muh Nurkoyim; Darsin, Mahros; Ilminnafik, Nasrul; Syuhri, Skriptyan Noor Hidayatullah
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2952

Aviation gasoline atau yang umum disebut dengan avgas merupakan bahan bakar bagi pesawat dengan mesin piston. Pesawat tipe ini pada umumnya banyak digunakan untuk pelatihan terbang hingga untuk penyemprotan tanaman. Banyak peneliti yang telah membahas mengenai bahan bakar ini. Namun, masih belum ditemukan mengenai pengujian kecepatan pembakaran (SL) dan tinggi api laminar premix menggunakan metode bunsen burner. Oleh karena itu penelitian ini membahas mengenai studi kecepatan pembakaran laminar dan tinggi api premix avgas 100 LL dengan memvariasikan ekuivalen rasio dari 0,8; 1,0 dan 1,2. Pada penelitian ini ditemukan bahwa kecepatan pembakaran tertinggi didapatkan pada ekuivalen rasio 1,0 yakni 49,31 cm/detik. Namun pada pengujian tinggi api, ekuivalen rasio 1,0 menghasilkan nilai tingi api terendah yakni 6,303 mm. Hal ini disebabkan karena nilai maksimum kecepatan pembakaran umumnya tercapai pada rasio stoikiometrik, yang menandakan saat bahan bakar dan udara dicampur dalam proporsi yang tepat untuk pembakaran sempurna. Dengan pembakaran campuran bahan bakar-udara yang mendekati stokiometri ini maka menyebabkan nilai tinggi api semakin rendah. Fenomena ini terjadi karena tinggi api terkait erat dengan konsumsi penuh uap bahan bakar, Sehingga, tinggi api mencapai titik akhir ketika semua bahan bakar yang menguap telah terbakar habis.

Unraveling the Research Trends of Artificial Intelligence in Aviation: A Bibliometric Analysis Sulung, Sabam Danny; Nasrullah, Muhammad Nur Cahyo Hidayat; Wibowo, Untung Lestari Nur
Journal of Science Technology (JoSTec) Vol. 5 No. 1 (2023): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v5i1.696

This study employs bibliometric methods utilizing VOSviewer analysis of Scopus data from 2013 to 2023 to investigate trends in artificial intelligence (AI) research within the aviation industry. The analysis reveals a substantial increase in publication volume over time, peaking at 406 articles in 2022, signifying a heightened interest in AI implementation within the aviation sector. Key publication sources notably include conferences such as AIAA IEEE Digital Avionics Systems Conference Proceedings and ACM International Conference Proceeding Series. Leading contributions in publications emerge from countries such as the United States, China, India, Germany, the United Kingdom, and France, reflecting global involvement in AI research within the aviation industry. Citation analysis identifies highly cited articles addressing topics such as Digital Twin (DT) optimization processes in aviation, AI application in aircraft navigation, and machine learning for weather forecasting. These findings underscore researchers' interest in fundamental topics such as aviation, aircraft-related artificial intelligence, flight delay, and deep learning. Furthermore, co-citation analysis delineates research clusters, illustrating thematic similarities within AI research in the aviation industry. Overall, this bibliometric analysis provides comprehensive insights into the evolution of AI research in the aviation industry, potentially guiding researchers, practitioners, and stakeholders in directing research efforts, formulating policies, and understanding current trends in the application of artificial intelligence within the aviation sector.

Kecepatan Pembakaran Laminar dan Tinggi Api Premix pada Campuran Pertamax-Avgas dengan Etanol Nur Cahyo Hidayat Nasrullah, Muhammad; Nurkoyim Kustanto, Muh; Darsin, Mahros; Ilminnafik, Nasrul; Noor Hidayatullah Syuhri, Skriptyan
National Multidisciplinary Sciences Vol. 3 No. 1 (2024): PROCEEDING SEMAKIN E.1
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Bahan bakar penerbangan yang umum digunakan untuk pesawat dengan tipe mesin reciprocating adalah avgas 100 LL. Keandalan penggunaan bahan bakar ini masih belum tergantikan, khususnya di daerah Indonesia. Pada umumnya avgas menggunakan zat aditif berbahaya berupa tetraethyl lead atau timbal untuk meningkatkan performa bahan bakar ini. Meskipun dapat meningkatkan performa, zat aditif ini terkenal menjadi cancer agent hingga penyebab penurunan IQ akademik pada anak-anak. Beberapa penelitian untuk mengurangi penggunaan timbal pada bahan bakar penerbangan sudah beberapa kali dibahas oleh para peneliti, salah satunya dengan mencampurkan avgas dengan bahan bakar konvensional tanpa timbal. Namun jarang yang membahas mengenai kecepatan pembakaran laminar (SL) pada topik tersebut. Artikel ini bertujuan untuk mengetahui dampak pencampuran bahan bakar avgas dengan pertamax serta penambahan etanol, serta variasi nosel burner terhadap kecepatan pembakaran laminar (SL) dan tinggi api premix yang dihasilkan pada rasio ekuivalen 0,8; 1,0; dan 1,2. Metode bunsen burner dipilih sebagai alat pengujian, karena dinilai simpel dan memiliki hasil yang cukup akurat. Dari pengujian yang dilakukan etanol memiliki nilai SL tertinggi. Campuran avgas dan pertamax memiliki kecepatan pembakaran yang lebih rendah dibanding avgas 100 LL murni, namun lebih tinggi dari pada pertamax murni. Sebaliknya hasil tinggi api berbanding terbalik. Namun dapat diketahui bahwa penambahan volume 30% etanol pada campuran terbukti meningkatkan kecepatan pembakaran yang dihasilkan. Selain data dari variasi bahan bakar, pengujian juga dilakukan dengan variasi diameter nosel. Dapat diketahui bahwa diameter nosel mempengaruhi nilai SL.

Pengenalan Pesawat Terbang Tingkat Dasar Bagi Mahasiswa Perguruan Tinggi Di Banyuwangi Prayitno, Hadi; Dimas Hari Cahyo; Arief Rusdyansyah; Fajar Islam; Dimas Endrawan Putra; Muhammad Nur Cahyo Hidayat Nasrullah
TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Vol. 4 No. 1 (2024): TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat
Publisher : Fakultas Teknik, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tekiba.v4i1.3619

Aviation safety is a condition where safety requirements are met in the use of airspace. Technological developments in the world of aviation will influence the risk of aircraft accidents occurring in the world of aviation, so the level of Standard Operation Procedure (SOP) of an airline must also be considered. Currently, limited information regarding aviation by university students outside of aviation schools is a problem often faced in the aviation industry. It does not rule out the possibility that those who have a career or work in the aviation industry are students from aviation or aviation schools, while those from universities outside of aviation will not be competent in it. Research regarding the introduction of basic level aircraft for university students in Banyuwangi was carried out to share knowledge with students who have chosen education outside the field of aviation. Where later he will become an informant for family, relatives and the surrounding community who are still at senior high school level as an option for them and their parents in determining their future education. And for those who have taken university level, they can get information or knowledge in the aviation field, where if they are interested, they will be able to continue their education and work in the aviation field after completing their education. This research uses qualitative methods so that the results obtained by introducing basic level aircraft for students can capture the interests and talents of university students and students to join the Banyuwangi Indonesian Aviation Academy, students will gain more in-depth knowledge about the world of aviation. Students can understand the complexities and challenges faced by pilots and other aviation professionals. They will also learn about the various stages of education and training required to achieve success in this field.

Unraveling the Research Trends of Artificial Intelligence in Aviation: A Bibliometric Analysis Sulung, Sabam Danny; Nasrullah, Muhammad Nur Cahyo Hidayat; Wibowo, Untung Lestari Nur; Lubis, Julianto
Journal of Science Technology (JoSTec) Vol. 5 No. 1 (2023): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v5i1.696

This study employs bibliometric methods utilizing VOSviewer analysis of Scopus data from 2013 to 2023 to investigate trends in artificial intelligence (AI) research within the aviation industry. The analysis reveals a substantial increase in publication volume over time, peaking at 406 articles in 2022, signifying a heightened interest in AI implementation within the aviation sector. Key publication sources notably include conferences such as AIAA IEEE Digital Avionics Systems Conference Proceedings and ACM International Conference Proceeding Series. Leading contributions in publications emerge from countries such as the United States, China, India, Germany, the United Kingdom, and France, reflecting global involvement in AI research within the aviation industry. Citation analysis identifies highly cited articles addressing topics such as Digital Twin (DT) optimization processes in aviation, AI application in aircraft navigation, and machine learning for weather forecasting. These findings underscore researchers' interest in fundamental topics such as aviation, aircraft-related artificial intelligence, flight delay, and deep learning. Furthermore, co-citation analysis delineates research clusters, illustrating thematic similarities within AI research in the aviation industry. Overall, this bibliometric analysis provides comprehensive insights into the evolution of AI research in the aviation industry, potentially guiding researchers, practitioners, and stakeholders in directing research efforts, formulating policies, and understanding current trends in the application of artificial intelligence within the aviation sector.

Integrated and Sustainable Transit Development: A Case Study of Terminal Isimu and Djalaluddin Airport in Gorontalo Province Rahmawati, Aisyah; Nasrullah, Muhammad Nur Cahyo Hidayat; Mintje, Quirina Ariantji Patrisia
Logistica : Journal of Logistic and Transportation Vol. 3 No. 2 (2025): April 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/logistica.v3i2.698

This study examines the integration potential between Terminal Isimu and Djalaluddin Airport in Gorontalo Province, Indonesia, using the Green Transport Sustainability Model (GTSM). The research evaluates existing conditions of intermodal connectivity, identifies key barriers, and develops alternative development scenarios. A qualitative descriptive approach was applied, relying on secondary institutional data and GTSM indicators such as connectivity, modal share, emissions, and stakeholder alignment. The findings indicate that Terminal Isimu currently operates as an informal hub, while Djalaluddin Airport serves growing passenger and cargo traffic with limited coordination. Three scenarios are outlined, ranging from basic shuttle linkage to a full Transit Oriented Development (TOD) with electric vehicles and intelligent transport systems. The study contributes by contextualizing GTSM in a secondary city setting and highlighting practical pathways for phased integration. However, the exclusive use of secondary data and the absence of field validation limit the scope of findings. Future research should incorporate surveys or stakeholder engagement to strengthen empirical evidence and ensure policy relevance. The study concludes that Gorontalo holds significant promise as a model for sustainable transit integration in Indonesia's secondary urban areas. Through strategic investments and stakeholder collaboration, the region can enhance accessibility, reduce emissions, and support inclusive economic growth.

Human Capital Optimization in Logistics: A Quantitative Analysis of Motivational and Environmental Determinants of Performance Herdian, Rofik Sandra; Budiyanto, Albert; Nasrullah, Muhammad Nur Cahyo Hidayat; Hariri, Ahmad; Marini
Logistica : Journal of Logistic and Transportation Vol. 2 No. 1 (2024): January 2024
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/logistica.v2i1.737

This study investigates the influence of work motivation and work environment on employee performance within PT Aerojasa Cargo's warehouse division. Recognizing the strategic importance of human capital in logistics, the research aims to evaluate how these two variables interact to affect operational outcomes.Using a quantitative methodology, the study surveyed 55 employees selected through Slovin’s formula. A structured Likert-scale questionnaire measured three core constructs: motivation, work environment, and performance. Data were analyzed using SPSS 26.0, employing descriptive statistics, multiple regression analysis, and validation metrics such as Cronbach’s alpha and R². Key results show that both motivation and work environment significantly impact employee performance (p < 0.05), with a combined explanatory power of 83.3% (R² = 0.833). The work environment demonstrated a slightly higher beta coefficient (β = 0.417) than motivation (β = 0.286), suggesting that physical and social workplace conditions are marginally more influential. Descriptive findings also revealed demographic patterns relevant to performance, including age distribution, education level, and gender roles. These findings align with existing literature and underscore the synergistic importance of fostering motivation and creating supportive work environments. The study concludes that HR managers in logistics should implement dual-focused strategies to enhance both motivational drivers and workplace quality. Such strategies may include high-performance work systems, ergonomic improvements, and continuous feedback mechanisms. This research contributes to the field of organizational behavior by offering empirical support for integrated HRM approaches in logistics, providing a framework for future policy and academic inquiry.

Maritime Connectivity and Economic Inclusion: A Decade of Indonesia’s Sea Toll Program Nasrullah, Muhammad Nur Cahyo Hidayat
Sinergi International Journal of Logistics Vol. 3 No. 3 (2025): August 2025
Publisher : Yayasan Sinergi Kawula Muda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61194/sijl.v3i3.890

Indonesia’s archipelagic geography poses significant logistical challenges, particularly in achieving equitable connectivity across its more than 17,000 islands. In response, the government launched the Sea Toll Program in 2014 to reduce logistics costs, address price disparities, and integrate remote regions into the national economy. This study aims to evaluate the performance of the Sea Toll Program, focusing on its impact on route expansion, infrastructure development, and commodity price stabilization. Employing a qualitative-descriptive methodology, the research utilizes secondary data from government agencies, international institutions, and academic sources. Comparative and thematic analyses are applied to assess logistics improvements and ongoing structural constraints. The results show substantial progress: route expansions from 3 to 39 between 2015 and 2024, port coverage increased to 109, and cargo volumes reached 24,556 TEUs. Notably, between 2018 and 2024, price reductions of 10–12% for essential commodities were recorded in remote regions, based on data from the Ministry of Trade and Central Bureau of Statistics (BPS). However, only 58.7% of ports are adequately equipped, and backhaul cargo utilization remains below 25%. Infrastructure gaps, fragmented digital systems, and limited intermodal integration continue to impede efficiency. The study concludes that while the Sea Toll Program has enhanced logistics connectivity and supported regional equity, systemic reforms are required to realize its full potential. These include infrastructure modernization, digital platform integration, intermodal coordination, and adaptive governance models. The findings offer a roadmap for future logistics strategies that support national resilience and inclusive development.

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