Download or read book Tire Overspeed Landing Test written by A-5C Aircraft Tires Committee and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document covers the basis of, and test procedure for, an overspeed landing test on aircraft tires with rated speeds of 190 mph (306 km/h) and above. The conditions requiring an overspeed test, alternatives, test requirements and pass/fail criteria are addressed. Overspeed landing is an emergency condition that can occur with certain aircraft requiring the aircraft to land at a speed higher than the design norm. For this condition, a standardized test method is needed to demonstrate a tire's capability to withstand this condition. This revision clarifies the relationship and the acceptance critierion for a tire passing the overspeed landing test, demonstrating a tire's capability to withstand the landing of an aircraft experiencing this condition.
Download or read book The Design of Aircraft Landing Gear written by Robert Kyle Schmidt and published by SAE International. This book was released on 2021-02-18 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aircraft landing gear and its associated systems represent a compelling design challenge: simultaneously a system, a structure, and a machine, it supports the aircraft on the ground, absorbs landing and braking energy, permits maneuvering, and retracts to minimize aircraft drag. Yet, as it is not required during flight, it also represents dead weight and significant effort must be made to minimize its total mass. The Design of Aircraft Landing Gear, written by R. Kyle Schmidt, PE (B.A.Sc. - Mechanical Engineering, M.Sc. - Safety and Aircraft Accident Investigation, Chairman of the SAE A-5 Committee on Aircraft Landing Gear), is designed to guide the reader through the key principles of landing system design and to provide additional references when available. Many problems which must be confronted have already been addressed by others in the past, but the information is not known or shared, leading to the observation that there are few new problems, but many new people. The Design of Aircraft Landing Gear is intended to share much of the existing information and provide avenues for further exploration. The design of an aircraft and its associated systems, including the landing system, involves iterative loops as the impact of each modification to a system or component is evaluated against the whole. It is rare to find that the lightest possible landing gear represents the best solution for the aircraft: the lightest landing gear may require attachment structures which don't exist and which would require significant weight and compromise on the part of the airframe structure design. With those requirements and compromises in mind,The Design of Aircraft Landing Gear starts with the study of airfield compatibility, aircraft stability on the ground, the correct choice of tires, followed by discussion of brakes, wheels, and brake control systems. Various landing gear architectures are investigated together with the details of shock absorber designs. Retraction, kinematics, and mechanisms are studied as well as possible actuation approaches. Detailed information on the various hydraulic and electric services commonly found on aircraft, and system elements such as dressings, lighting, and steering are also reviewed. Detail design points, the process of analysis, and a review of the relevant requirements and regulations round out the book content. The Design of Aircraft Landing Gear is a landmark work in the industry, and a must-read for any engineer interested in updating specific skills and students preparing for an exciting career.
Download or read book Advances in Aircraft Brakes and Tires written by Robert Kyle Schmidt and published by SAE International. This book was released on 2015-08-24 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: An aircraft’s interface with the ground—through its wheels, tires, and brakes—is critical to ensure safe and reliable operation, demanding constant technology development. Significant advancements have occurred with almost all civil airliners entering service with radial tires, and with the Boeing 787 having entered service in 2011 with electrically actuated carbon-carbon brakes. This book is divided into three sections: tires, control systems, and brakes, presenting a selection of the most relevant papers published by SAE International on these matters in the past fifteen years. They have been chosen to provide significant interest to those engineers working in the landing gear field. With almost all current large civil aircraft (and many smaller aircraft) opting exclusively for carbon-carbon brakes, a number of papers addressing the challenges of this technology are included. Papers touching on tire behavior and papers discussing brake control strategies are provided. For those looking for more information on aircraft landing gears, brakes, and tires, the SAE A-5 committee (the Aerospace Landing Gear Systems Committee), which meets twice a year, serves as a useful forum for discussion on landing gear issues and development. A current listing of documents produced and maintained by the A-5 committee is included in the appendix.
Download or read book Advances in Aircraft Landing Gear written by Robert Kyle Schmidt and published by SAE International. This book was released on 2015-08-24 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aircraft landing gear system is relatively unique on board an aircraft—it is both structure and machine, supporting the aircraft on the ground, yet providing functions such as energy absorption during landing, retraction, steering, and braking. Advances in Aircraft Landing Gear is a collection of eleven hand-picked technical papers focusing on the significant advancements that have occurred in this field concerning numeric modeling, electric actuation, and composite materials. Additionally, papers discussing self-powered landing gear and more electrical overall aircraft architectures have been included. The content of Advances in Aircraft Landing Gear is divided into two sections: Analysis and Design Methods; and Electric Actuation, Control, and Taxi. For those looking for more information on aircraft landing gears, the SAE A-5 committee (the Aerospace Landing Gear Systems Committee), which meets twice a year, serves as a useful forum for discussion on landing gear issues and development. A current listing of documents produced and maintained by this committee appears in the appendix.
Download or read book Aircraft Tires written by Kyle Schmidt and published by SAE International. This book was released on 2022-05-27 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landing gear provides an intriguing and compelling challenge, combining many fields of science and engineering. Designed to guide the interested reader through aircraft tire design, selection, and integration to the aircraft landing gear, this book presents a specific element of landing gear design in an accessible way. The author’s two volume treatise, The Design of Aircraft Landing, was the inspiration for this book. The Design of Aircraft Landing is a landmark work for the industry and utilizes over 1,000 pages to present a complete, in-depth study of each component that must considered when designing an aircraft’s landing gear. While recognizing that not everyone may need the entire treatise, Aircraft Tires: Key Principles for Landing Gear Design is one of three quick reference guides focusing on one key element of aircraft design and landing gear design. This volume features tire construction and terminology, mechanics of pneumatic tires, tire performance and modeling as well reviewing undesirable tire behavior. R. Kyle Schmidt has over 25 years’ experience across three countries and has held a variety of variety of engineering roles relating to the development of new landing gears and the sustainment of existing landing gears in service.
Download or read book Airfield Compatibility written by Kyle Schmidt and published by SAE International. This book was released on 2022-05-27 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landing gear provides an intriguing and compelling challenge, combining many fields of science and engineering. Designed to guide the interested reader through the key principles of aircra¬ft compatibility with the ground and ground infrastructure (airfields, heliports, etc.), this book presents a specific element of landing gear design in an accessible way. The author’s two volume treatise, The Design of Aircraft Landing, was the inspiration for this book. The Design of Aircraft Landing is a landmark work for the industry and utilizes over 1,000 pages to present a complete, in-depth study of each component that must considered when designing an aircraft’s landing gear. While recognizing that not everyone may need the entire treatise, Airfield Compatibility: Key Principles for Landing Gear Design is one of three quick reference guides focusing on one key element of aircraft design and landing gear design. This volume centers on how to ensure that the aircraft is compatible with the ground surfaces that it will encounter in use. R. Kyle Schmidt has over 25 years’ experience across three countries and has held a variety of variety of engineering roles relating to the development of new landing gears and the sustainment of existing landing gears in service.
Download or read book Aircraft Tires Service Overload Capability written by A-5C Aircraft Tires Committee and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Aerospace Recommended Practice (ARP) defines a procedure for demonstrating service overload capability for new, main and nose landing gear, radial or bias tires fitted on multiple wheel landing gear of Part 25 certified aircraft. Many OEMs impose an overload condition on the tire that exceeds the current 1.5 factor required in TSO-C62e. The overload condition described herein is recommended in support of FAR 25.1309 (a) and (b) considering continued safe flight and landing following the loss of load carrying capability of one tire on a multiple tire landing gear. In addition to maximizing safety, economic damage is mitigated by ensuring the remaining tire(s) on a landing gear perform their intended function following the loss of load carrying capability of one tire on a multiple tire landing gear. A service overload test should be a recommended practice to achieve a minimum level of safety for aircraft certified under 14 CFR Part 25.
Download or read book Tire Break in Procedures for Handling Tests written by J. E. Martinez and published by . This book was released on 1977 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1971-02 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tire Friction Coefficients and Their Relation to Ground Run Distance in Landing Classic Reprint written by F. B. Gustafson and published by Forgotten Books. This book was released on 2017-10-27 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Tire Friction Coefficients and Their Relation to Ground-Run Distance in Landing For a turf field when wet, very little data are available. The values found do not appear to be conclu sive and more information on this point is desired. Information is also lacking on the effects of high speed and of tire size on braking coefficients. The values given, with the exception of the data obtained from naca landing tests, are for automobile tires tested at speeds not exceeding 45 miles per hour. The evidence at hand, however, does not point to the likelihood of any radical changes in the general conclusions when these factors become known. Likewise, although reference I shows an increase in friction coefficient on wet concrete with a decrease in temperature, introduction of this fac tor would appear to constitute a refinement rather than a fundamental revision. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Aircraft Accident and Maintenance Review written by and published by . This book was released on 1959 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Accident Report written by and published by . This book was released on 197? with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Accident Report written by United States. National Transportation Safety Board and published by . This book was released on 2006 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: On March 23, 2004, about 1918:34 central standard time, an Era Aviation Sikorsky S-76A++ helicopter, N579EH, crashed into the Gulf of Mexico about 70 nautical miles south-southeast of Scholes International Airport (GLS), Galveston, Texas. The helicopter was transporting eight oil service personnel to the Transocean, Inc., drilling ship Discoverer Spirit, which was en route to a location about 180 miles south-southeast of GLS. The captain, copilot, and eight passengers aboard the helicopter were killed, and the helicopter was destroyed by impact forces. The flight was operating under the provisions of 14 Code of Federal Regulations Part 135 on a visual flight rules flight plan. Night visual meteorological conditions prevailed at the time of the accident. The National Transportation Safety Board determines that the probable cause of this accident was the flight crew's failure to identify and arrest the helicopter's descent for undetermined reasons, which resulted in controlled flight into terrain. The safety issues discussed in this report focus on terrain awareness and warning systems for helicopters, flight control system training, flight-tracking technology for low-flying aircraft in the Gulf of Mexico, and preflight testing and maintenance checks for cockpit voice recorders. Safety recommendations concerning these issues are addressed to the Federal Aviation Administration.
Download or read book Tire Burst Test Methodology written by A-5C Aircraft Tires Committee and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes a recommended test procedure to assess the burst characteristics of tires used on 14CFR Part 25 or similar transport airplanes. This SAE Aerospace Recommended Practice provides a standard method for testing tires to determine their burst characteristics. This test does not replace the FAA hydrostatic test to test the strength of the tire, nor does it replace the need to comply with 14CFR Part 25.729(f) and CS 25.734, and the associated AMC, including Type Burst Pressure Effect model.
Download or read book Yawed Rolling Tire Mechanical Properties Testing of the Navy T 45 Aircraft Tires written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-27 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The T-45 Goshawk is a United States Navy Jet aircraft used primarily as a trainer. The aircraft design makes use of "off the shelf" hardware as much as possible and was found to have unusual directional control issues during around operations. The aircraft was involved in numerous pilot-induced-oscillation incidents as well as observed to have unusual directional control reactions to failed main gear tires, a condition that is normally handled relatively easily by conventional aircraft steering control techniques. The behavior of the aircraft's tires had previously been modeled in simulators as a result of approximations provided in 40-year-old reference publications. Since knowledge of the true tire cornering and braking behavior is essential to modeling, understanding, and fixing directional control problems, the United States Navy requested assistance from the NASA Langley Research Center's (LARC) Aircraft Landing Dynamics Facility (ALDF) to define the yawed-rolling mechanical properties of the T-45 aircraft tires. The purpose of this report is to document the results of testing the subject tires at the NASA LaRC ALDF in September 1998. Brief descriptions of the Instrumented Tire Test Vehicle (ITTV) are included to familiarize the reader with the ITTV capabilities, data acquisition system, test and measurement techniques, data accuracy, and analysis and presentation of the testing results. Daugherty, Robert H. Langley Research Center RTOP 706-11-02
Download or read book An Innovative Friction and Wear Test for Aircraft Tires written by Khushroo M. Captain and published by . This book was released on 1972 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program is a first step toward the formulation of a standardized test for aircraft tire friction and wear. A method is determined to evaluate tire performance by testing a small section of the tread. This reduces the size and cost of the test equipment and shortens the test time. Tread loading during takeoff, landing and cornering has been analyzed in order to identify the operating conditions resulting in the most severe tread wear and friction requirements. The factors that affect tire friction and wear were studied, and the dominant forces, motions and heating of a tread element during landing were determined. The analysis was then used as a basis for the formulation of the test method and the requirements for the testing equipment.
Download or read book Recent Data on Tire Friction During Landing written by Sidney A. Batterson and published by . This book was released on 1957 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made at the Langley landing-loads track to obtain data on the coefficient of friction during wheel spin-up. A landing gear was tested at horizontal velocities ranging from zero to 180 feet per second together with vertical velocities of 7.0 and 9.3 feet per second. The results indicate the effect of forward speed and tire inflation pressure on the coefficient of friction.
