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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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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 As this is the first edition, published on February 16th 2018, the data on actual utilization is a little out of date, but it does include a description of the general design method for multi-copters (it is possible that this is based on the design of radio-controlled model),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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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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Book Introduction Part 5

Follow me! Use “Artisan Tools” to Squash Design Troubles! -How to use FMEA, FTA and Design Review wisely! (Japanese version only) Author: Yoshimasa Kunii Publisher: Nikkan Kogyo Shinbunsha The book explains the methods of FMEA/FTA and design review, which are quality control methods, in an easy-to-understand manner. It explains why FMEA/FTA and design review are not so effective despite the fact that they are thoroughly implemented as a means to strengthen quality control. The book also provides simple examples of…

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Book Introduction Part 4

Dynamics of Atmospheric Flight Author： Bernard Etkin Publisher: John Wiley & Sons Inc. This textbook derives the dynamics of aircraft and spacecraft, taking into account the effects of the earth’s rotation and orbit. It is intended for those who want to study the equations of motion of airplanes thoroughly. Especially, if you understand chapters 4 and 5, you can simulate the motion of various vehicles moving in three dimensions. There are some misprints in some parts, and it is rumored…

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Book Introduction Part 3

Flight Dynamics (Japanese version only) Author: Hiroshi Maeda Publisher: Yokendo The author, who was not an aeronautics specialist but now teaches aeronautical engineering, has designed this book for beginners to understand the motions of aircraft, satellites, and rockets with knowledge at the college level, without using many difficult mathematical formulas. The book is very easy to understand and is recommended for those who aim to become aerospace engineers. The Story of Wings (Japanese version only) Author: Hiroshi Maeda Publisher: Yokendo…

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Book Introduction Part 2

Test Pilot’s Testimony: Struggles and Lessons Learned in Postwar Domestic Aircraft Development (Japanese version only) Author: Eizo Hasegawa Publisher: Kantousha The author, who participated in the development of the YS-11, C-1, and FA-200 as a test pilot after World War II, describes the conditions of flight tests, etc. The book includes information such as the communication between the pilot and the designer during the development of the YS-11, which can be used as a reference in the development of new…

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Introduction to Public Standards Search Site

This is an introduction to a site for searching and purchasing public standards related to drones, aircraft, etc. The MIL standards search site has an older version, but the standards themselves can be viewed. ASTM Standards: https://www.astm.org/ ASTM standards are developed and published by the American Society for Testing and Materials (ASTM International), a U.S. standards organization. There are standards for all industrial materials (iron and steel, nonferrous metals, rubber, plastics, coatings, textiles, etc.). SAE Standards: https://www.sae.org/standards SAE Standards are…

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Book Introduction Part1

DO-178C Practical Guidebook (Japanese version only) Author: MHI Aerospace Systems, Inc. Publisher: Sankeisha This is probably the only publication in Japan on the DO-178C standard required for certification of onboard aircraft software. It not only explains the difficult DO-178C in an easy-to-understand manner, but it is also a good read for companies that develop new aircraft software or intend to install existing software. One of the authors, Mr. Kakamu, has started his own company to support software certification, so companies…

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