• Journal of Advanced Navigation Technology
• /
• v.28 no.3
• /
• pp.272-277
• /
• 2024

In most countries, instrument flight procedures are designed by applying one of the following standards: the International Aviation Organization's DOC 8168, Air Navigation Services and Operation Procedures (PANS-OPS), or the US Federal Aviation Administration's TERPS, Terminal Procedures. In particular, the circling approach procedure has many differences between the two standards, and the US terminal procedure (TERPS) has become more complicated since 2013 by applying expanded standards depending on altitude. The circling approach procedures are more risky than straight-in approach procedures because it involves maneuvering the aircraft close to the ground at low energy for landing. In order to accurately understand these differences, this study provides to distinguish by what criteria the circling approach procedure is designed according to individual domestic airports in Korea, to calculate the radius for the range of circling approach areas that guarantee minimum obstacle avoidance during circling approach maneuvers, and to present methods for performing safe circling approach procedures.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2020.11a
• /
• pp.72-74
• /
• 2020

일반적으로 선박조종에 필요한 중요한 성능으로 보침성능, 변침성능, 선회성능, 정지성능을 중요하게 여긴다. 이러한 조종성능은 선체의 선형과 함께 타와 엔진으로 표현될 수 있으며 특히 엔진의 성능은 선박의 안전운항과 직결되어 있다. 따라서 선박이 충분한 출력을 확보하지 못하면 항내조선시 선박의 안전을 담보하기 힘들며 또한 황천항해시 외력을 이기고 선박을 안전하게 조선하기 힘들다. 본 연구에서는 2020년 4월 6일 발생한 밀라노브릿지 사고를 통해 선박의 엔진출력을 저해하는 요소인 프로펠러 레이싱, 공전현상, 벤틸레이션 현상에 대하여 고찰하고자 하며 이를 통하여 선박의 조종성능에 미치는 출력을 중요성에 대하여 강조하고자 한다.

• Journal of Korean Society of Transportation
• /
• v.21 no.1
• /
• pp.7-19
• /
• 2003

The airspace has to be designed considering the flight safety and economic efficiency of aircraft operators. The International Civil Aviation Organization(ICAO) published standards and recommended practices for safe design of the airspace. Each contracting country must follow the ICAO standards in designing the airspace for the utilization of civil aviation. Normally each member establishes its own standards and national aviation law for the safe and efficient design of the airspace, regarding the ICAO standards. However, our government has not developed yet clear and detailed standards and regulation system for airspace design. This might lead to aviation accidents and disputes between operators of aviation system This study is to review the characteristics of ICAO standards and a legal problem related to application of international standards for airspace design. Specifically this research analyzed the case of airspace design and operation of a domestic airport. The results of analysis are as follow: (1) per the safety of civil aviation, it is very required to establish national regulation system to follow ICAO standards in designing airspace, (2) It is also necessary to establish separate procedure for civil aircraft in military air base, when the aerodrome is co-used by military and civil aircraft. If the same procedure for military aircraft is applied to civil aircraft, it is necessary to make clear what the design concept is, (3) and the differences from ICAO standards have to be publicly known.