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The intent of this specification is for the procurement of carbon fiber and fiberglass epoxy prepreg products with 350 °F (177 °C) cure for aerospace applications; therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program must refer to the production quality assurance section (4.3) of this base specification, AMS6891.
AMS P17 Polymer Matrix Composites Committee
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS E Carbon and Low Alloy Steels Committee
This specification covers a corrosion- and heat-resistant steel in the form of sheet, strip, and plate over 0.005 inch (0.13 mm) in nominal thickness.
AMS F Corrosion and Heat Resistant Alloys Committee
This specification covers an aluminum alloy in the form of plate from 0.250 to 1.500 inches (6.35 to 38.10 mm) in thickness (see 8.6). This plate has been used typically for structural applications requiring plate with high strength, moderate fatigue strength, and high fracture-toughness, but usage is not limited to such applications.
AMS D Nonferrous Alloys Committee
This paper attempts to introduce a unique water transport system by using open-bottomed air tanks in a water transport vehicle and using horizontal buoyancy instead of vertical buoyancy. This study explains how a certain amount of horizontal buoyancy is generated by attaching open-bottomed air vessels to commonly used small watercraft. In contrast to the fact that vehicles generally require a lot of water for all water transport, this new mode of transport can use a minimal amount of water, as appropriate for the weight, through a sufficient literature survey. The proposed water–air–based vehicle integrates open-bottomed air vessels with a hydrofoil system to generate horizontal propulsion. A model analysis is conducted to explain how the horizontal buoyancy force generated by the air vessels is related to the vertical buoyancy force, and their values at different depths are tabulated. The vehicle model can achieve a maximum speed of 1.5 m/s, handling 20–70 kg payload, highlighting
Santhiyagu, Arulanantha Samy
Automatic emergency braking (AEB) systems are crucial for road safety but often face performance challenges in complex road and climatic conditions. This study aims to enhance AEB effectiveness by developing a novel adaptive algorithm that dynamically adjusts braking parameters. The core of the contribution is a refined mathematical model that incorporates vehicle-specific correction coefficients and a real-time prediction of the road–tire friction coefficient. Furthermore, the algorithm features a unique driver-style adaptation module to optimize warning times. The developed system was functionally tested on a vehicle prototype in scenarios including dry, wet, and snow-covered surfaces. Results demonstrate that the adaptive algorithm significantly improves collision avoidance performance compared to a non-adaptive baseline, particularly on low-friction surfaces, without introducing excessive false interventions. The study concludes that the proposed adaptive approach is a vital step
Petin, ViktorKeller, AndreyShadrin, SergeyMakarova, DariaAntonyan, AkopFurletov, Yury
2024–2025 Reviewers
Pilla, Srikanth
Aircraft operations during landing or takeoff depend strongly on runway surface conditions. Safe runway operations depend on the tire-to-runway frictional force and the drag offered by the aircraft. In the present research article, a methodology is developed to estimate the braking friction coefficient for varied runway conditions accurately in real-time. To this end, the extended Kalman filtering technique (EKF) is applied to sensor-measured data using the on-ground mathematical model of aircraft and wheel dynamics. The aircraft velocity and wheel angular velocity are formulated as system states, and the friction coefficient is estimated as an augmented state. The relation between the friction coefficient and wheel slip ratio is established using both simulated and actual ground roll data. Also, the technique is evaluated with the simulated data as well as real aircraft taxi data. The accuracy of friction estimation, with and without the measurement of normal reaction force on the
T.K., Khadeeja NusrathSingh, Jatinder
This SAE Standard defines the method for deriving and verifying the peening intensity exerted onto a part surface during shot peening or other surface enhancement processes.
Surface Enhancement Committee
This SAE AIR covers Forced Air technology including: reference material, equipment, safety, operation, and methodology. It is intended to provide pressure and temperature (temps pages 26 & 31) information and minimum safety guidelines regarding use of equipment to remove frozen contaminants related to: i) Forced air ii) Forced air/fluid iii) Deicing fluid
G-12M Methods Committee
The following schematic diagrams reflect various methods of illustrating automotive transmission arrangements. These have been developed to facilitate a clear understanding of the functional interrelations of the gearing, clutches, hydrodynamic drive unit, and other transmission components. Two variations of transmission diagrams are used: in neutral (clutches not applied) and in gear. For illustrative purposes, some typical transmissions are shown.
Automatic Transmission and Transaxle Committee
This information report covers all known aircraft with respect to deicing operations, especially with regard to OEM pressure and temperature limitations on the airframe. It provides data for airlines/operators on compliance with OEM limits and confirms that OEM limits are not exceeded during deicing operations.
G-12M Methods Committee
This study develops deep learning (DL) long–short-term memory (LSTM) models to predict tailpipe nitrogen oxides (NOx) emissions using real-driving on-road data from a heavy-duty Class 8 truck. The dataset comprises over 4 million data points collected across 11,000 km of driving under diverse road, weather, and load conditions. The effects of dataset size, model complexity, and input feature set on model performance are investigated, with the largest training dataset containing around 3.5 million data points and the most complex model consisting of over 0.5 million parameters. Results show that a large and diverse training dataset is essential for achieving accurate prediction of both instantaneous and cumulative NOx emissions. Increasing model complexity only enhances model performance to a certain extent, depending on the size of the training dataset. The best-performing model developed in this study achieves an R2 higher than 0.9 for instantaneous NOx emissions and less than a 2
Shahpouri, SaeidJiang, LuoKoch, Charles RobertShahbakhti, Mahdi
This AIR is limited to the testing of an extra-high strength copper alloy and benchmark conductors utilizing the test protocol of AS6324. All samples are 19 strand unilay conductors per AS29606 at 24 or 26 AWG, either nickel or silver coated. At 24 AWG, extra-high strength copper alloy is compared to high strength copper alloy conductors. At 26 AWG, extra-high strength copper alloy is compared to high strength copper alloy and ultrahigh strength copper alloy conductors.
AE-8D Wire and Cable Committee
This SAE Recommended Practice is derived from the FMVSS 105 vehicle test and applies to two-axle multipurpose passenger vehicles, trucks, and buses with a GVWR above 4540 kg (10000 pounds) equipped with hydraulic service brakes. There are two main test sequences: the Development Test Sequence for generic test conditions when not all information is available or when an assessment of brake output at different inputs is required, and the FMVSS Test Sequence when vehicle parameters for brake pressure as a function of brake pedal input force and vehicle-specific loading and brake distribution are available. The test sequences are derived from the Federal Motor Vehicle Safety Standard 105 (and 121 for optional sections) as single-ended inertia-dynamometer test procedures when using the appropriate brake hardware and test parameters. This recommended practice provides Original Equipment Manufacturers (OEMs), brake and component manufacturers, and aftermarket suppliers with results related to
Truck and Bus Hydraulic Brake Committee
E-25 General Standards for Aerospace and Propulsion Systems
This SAE Standard covers cold drawn and annealed seamless low-carbon steel pressure tubing intended for use as hydraulic lines and in other applications requiring tubing of a quality suitable for flaring and bending. In an effort to standardize within a global marketplace and ensuring that companies can remain competitive in an international market it is the intent to convert to metric tube sizes which will: Lead to one global system Guide users to preferred system Reduce complexity Eliminate inventory duplications
Metallic Tubing Committee