Langit Biru: Jurnal Ilmiah Aviasi

Estimating Air Travel Demand in North Sumatra Using Gravity Model Approach with Economic and Route Analysis

Ahnis Zulkarnain — 2025-04-17

This study estimates regional air travel demand in North Sumatra Province using variations of the gravity model. The objectives are to identify key factors influencing air travel demand, estimate demand through different model formulations, and assess airport infrastructure adequacy for regional connectivity. Three models were developed, progressively incorporating economic indicators such as GDP per capita, population, and distance, alongside socio-economic variables like leisure attractions, hotel accommodations, universities, and health facilities. The methodology involved log-linear transformations and regression analysis to estimate parameters. Results revealed significant variability in air travel demand, driven by proximity and economic activity, with the population coefficient shifting from 0.707 in Model 1 to -0.178 in Model 3, as socio-economic variables like leisure attractions (0.811) and GDP per capita (0.813) became more influential. Findings also exposed disparities in airport coverage, highlighting the need for strategic infrastructure improvements, particularly for high-demand pairs like Medan - Mandailing Natal.

The Role of Seaplane in Promoting the Concept of Sustainable Tourism in Indonesia

Hadi Prayitno — 2025-04-17

This study discusses the role of amphibious aircraft in promoting the concept of sustainable tourism in Indonesia. Amphibious aircraft emerged as an innovative solution to the problem of accessibility to remote islands in Indonesia. However, the integration of amphibious aircraft into the Indonesian tourism sector and its alignment with the principles of sustainable tourism is a complex problem. This study uses a literature review research methodology. The analysis method used is descriptive qualitative. The descriptive qualitative research method is a method of seeking knowledge about previous research through books, national and international journals. During the review process, researchers look for similarities, find differences, provide opinions, summarize and combine into a new concept. This study aims to contribute knowledge and recommendations to policy makers, tourism operators, and environmental activists to support sustainable development in the Indonesian tourism sector. It is hoped that this study can provide a comprehensive picture of the potential benefits, challenges, and impacts of amphibious aircraft in promoting sustainable tourism practices in Indonesia, as well as identifying gaps and opportunities for future research.

Analysis of the Effect of Variations in Wingtip and Winglet Additions of Aeromodelling Aircraft Wings on Flight Performance and Battery Consumption

ferry setiawan — 2025-04-17

This research develops an aeromodelling aircraft with three wing variations: wingtip, winglet fence, and blended winglet. The aircraft is designed using 3D software and built from polyfoam, with airfoils, servos, ESCs, and motors for control. Each wing type affects performance and battery usage differently. The aircraft is tested over a 5-minute flight. Wingtips improve agility and are the most battery efficient, consuming 12.60%, with battery after Used 87.4%. Winglet fences have similar manoeuvrability to blended winglets but use more battery at 14.32% and 14.61%, respectively. While winglets save energy in large aircraft, in aeromodelling with frequent manoeuvres, they consume more battery due to energy spent on maintaining stability. This study helps aeromodelling enthusiasts choose wings that match their flying needs, whether for agile manoeuvres or fast, straight flight.

Certification Process of Starlink Wifi on A320 Aircraft

Roni Hasudungan Malau — 2025-04-18

Driven by the growing demand for seamless in-flight internet access and efforts to enhance passenger comfort, airlines are increasingly adopting in-flight connectivity technologies such as the Starlink Wi-Fi system. Integrating these systems into aircraft requires obtaining Supplemental Type Certificate (STC) approval from aviation authorities to ensure compliance with airworthiness standards. This paper examines the certification process for installing Starlink Wi-Fi on A320 aircraft under EASA and DGCA regulations, with a focus on airworthiness aspects. The process involves defining the design description, classifying the modification, and identifying the certification basis and compliance requirements. The installation is classified as a non-significant major change under both regulatory frameworks, requiring adherence to specific certification basis, Means of Compliance, and Design Organization Approval (DOA) frameworks. DGCA mandates Class C and D DOA, while EASA employs a single DOA structure based on approved privileges, highlighting distinct regulatory approaches to certification.

Automated System Design for Sending Arrival Messages at Backup Facilities in Jakarta Air Traffic Service Center

Muhammad Caesar Akbar — 2025-04-20

This research is urgent to ensure that the Arrival Message Engine, which is separate from the Main ATC System, can send ATS Messages automatically. This was deemed necessary to do immediately to back up a bug in the Main ATC System, which caused several Arrival Messages not to be sent. The method used is the research and development method, meaning it is a scientific way to research, design, and test the validity of the product that has been created. Research and development has four levels: researching without testing, testing without researching, researching and testing to develop existing products, and researching and testing to create new products. A product has been produced in the form of an arrival message delivery automation system that automatically sends arrival message data to the AFTN message network and can run well per the user needs assessment in this research. It was proven from the design validation results that the test results were 100% and categorized as very feasible, as well as from the system test results using the Black Box method. As a continuation of this research, a warning and monitoring system for sending ATS messages is needed when a failure or anomaly occurs in the main system. It is hoped that this research can be considered for use in operations as an alternative facility so that it can support activities related to handling ATS messages or flight data processing systems in flight navigation operations.