Tech Library
List of Tech Library
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National Aerospace and Defense Contractors Accreditation Program (Nadcap)
What is Nadcap? 航空宇宙・防衛部品製造において、世界的に統一した基準による特殊工程管理を実施することで、全てのサプライヤーの品質を維持することを目的とした認証プログラム。Nadcap は、National Aerospace and Defense Contractors Accreditation Programの略称。 「製造およびサービス提供の過程で生じるアウトプットが、それ以降の審査及び測定で検証することが不可能な場合（製品が使用されサービスが提供された後でしか不具合が顕在化しない場合）」の作業工程を指し、具体的には機械加工、熱処理、表面処理、ショットピーニング、非破壊検査などが該当する。 Scope of Nadcap ＜Special Processes＞ ・Conventional Machining as a Special Process (CMSP) ；Drilling, milling, grinding, etc. (NADCAP AC No.AC7126 etc.) ・Chemical Processing (CP) ；Anodizing, chemical conversion coating, plating, etching, etc. (NADCAP AC No.AC7108 etc.) ・Coatings (CT) ；Thermal spraying, vapor deposition, etc. (NADCAP AC No.AC7109 etc.) ・Heat Treating Materials Testing (HT) ；Heat treatment process, equipment, high temperature measurement, carburizing, nitriding, brazing, etc. (NADCAP AC No.AC7102 etc.) ・Measurement and Inspection (MI) ；CMM, laser tracker, etc….
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(日本語) 自衛隊耐空証明
Sorry, this entry is only available in Japanese.
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State Safety Programme (SSP) Implementation Plan in Japan
JCAB published the “State Safety Programme (SSP) Implementation Plan 2025.” This implementation plan outlines annual safety targets and specific implementation measures. In accordance with Annex 19 of the Convention on International Civil Aviation, JCAB established the State Safety Programme (SSP) in October 2013. To ensure the effective implementation of the SSP, the following three measures were established under the “Mid-Term Direction for State Safety Administration” formulated in October 2015. (1) Set national safety targets on a regular basis (once a…
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Guidelines for the safe simultaneous operation of multiple unmanned aircraft in Japan
Unmanned aircraft are widely used in areas such as pesticide spraying, photography, surveying, and infrastructure inspection, but human resource shortages are an issue. In response to this situation, the Japan Ministry of Land, Infrastructure, Transport and Tourism has established “Guidelines for the safe simultaneous operation of multiple unmanned aircraft in Japan” in March 28, 2025, in order to solve the problem of “operating more unmanned aircraft simultaneously with fewer personnel.” These guidelines were established to promote the commercialization of unmanned…
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Book Introduction Part 9
All about the application of the drone industry -from the basics of development to practical application – (Japanese version only) Author : Kenzo Nonami Publisher : Ohmsha, Ltd. As this is the first edition, published on February 16th 2018, the data on actual utilization is a little out of date, but it does include a description of the general design method for multi-copters (it is possible that this is based on the design of radio-controlled model), and there are also…
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UAS Traffics Management System ( UTM )
A management system for enabling safe and efficient BVLOS operations in airspace where multiple unmanned aircraft are in operation. This is a system that supports the sharing of information on airspace, flight rules, other unmanned aircraft and manned aircraft, etc., and the avoidance of risks such as collisions in advance. Currently, each country is working on the development of UTM concepts, and demonstrations of UTM concepts are being conducted in collaboration with aviation regulatory authorities, research institutions, UTM service providers,…
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Book Introduction Part 8
NASA CR-3144 A Compilation and Analysis of Helicopter Handling Qualities Data Author：Heffly, R.K. , Jewell, W. F. Publisher： NASA This paper is a compilation of various helicopters (liner model) for rating handling qualities. A block diagram of the flight control law for each aircraft is also presented, although it is a simplified version. The aircraft included are OH-6A, BO-105C, AH-1G, UH-1H, and CH-53D. There are also data on the amount of steering and weight and center of gravity tolerances required…
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Book Introduction Part 7
NASA CR-2144 AIRCRAFT HANDLING QUALITIES DATA Author: Heffly, R.K. , Jewell, W. F. Publisher: NASA This book is a paper that collects airframe motion models (but linear models) of various airframes for maneuverability evaluation. A block diagram of the flight control law for each aircraft is also presented, although in a simplified version. The aircraft included are NT-33A, F-104A, F-4C, X-15, HL-10, Jetstar, CV-880M, B-747, C-5A, and XB-70A. It is worth reading for those who want to fly these aircraft…
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Book Introduction Part 6
AIRPLANE DESIGN Vol.1～8 Author: Jan Roskam Publisher: DAR CORPORATION This book summarizes airplane design methods in an easy-to-understand manner using drawings, tables, etc. of past airplane developments, from the initial design (aircraft sizing) in Volume 1 to the development, mass production, and maintenance cost evaluation in Volume 8. It covers both military and civilian aircraft, and is recommended for those who want to study the outlines of aircraft design. Volume 8 is particularly valuable because it contains a volume’s worth…
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About Approved Organizations
What is Approved Organizations? Approved Organizations are defined in Article 20 of the Civil Aeronautics Act as a organization that can conduct part or all of the government’s inspections on behalf of the government regarding the design, manufacturing process, and current status of the airworthiness of aircraft and equipment. In order for an organization to be approved, it must be certified by the Minister of Land, Infrastructure, Transport and Tourism that its capabilities in one or two or more of the…
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PIO: Pilot Induced Oscillation
About PIO(Pilot Induced Oscillation) A vibration phenomenon that is unintentionally excited by the correlation between the aircraft’s control system and the pilot. This phenomenon has been observed in the Wright Flyer, the first aircraft, and in the latest fighter aircraft (X-36), and in the worst case, it can lead to a crash. Although the name gives the impression that the cause is the pilot, the cause is the aircraft (Flight Control System). PIO is classified into the following four types…
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Unmanned Aircraft: Reporting Obligations for Holders of Type Certification, etc.
Article 132-21 of the Civil Aeronautics Act stipulates that “Any person who has approved Type Certification etc. must, regarding with an unmanned aircraft of the type for which Type Certification etc. have been approved, collect information on situations specified by Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism as those in which aircraft accidents, etc. (limited to those involving unmanned aircraft) and other unmanned aircraft do not comply with safety standards or are likely to fail to comply…