Aircraft cleaning requires the proper selection and use of approved cleaning materials, solvents, and methods to ensure effective maintenance without damaging components. Various cleaning agents—such as solvents, emulsions, detergents, and mild abrasives—are used to remove contaminants including oil, grease, carbon deposits, and corrosion products. However, improper use of these materials can create safety hazards or … Read more
Revision Block Revisions to a drawing are necessitated by changes in dimensions, design, or materials. The changes are usually listed in ruled columns either adjacent to the title block or at one corner of the drawing. All changes to approved drawings must be carefully noted on all existing prints of the drawing. When drawings contain … Read more
The ultimate test of whether there is a problem with an airplane’s weight and balance is when it is loaded and ready to fly. The only real importance of an airplane’s empty weight and EWCG is how it affects the loaded weight and balance of the airplane, since an airplane does not fly when it … Read more
Corrosion of aircraft metals is a critical maintenance concern that directly affects structural integrity, safety, and service life. Different metals used in aircraft construction—such as steel, aluminum, magnesium, and titanium—exhibit unique corrosion characteristics and require specific inspection and treatment methods. Understanding how corrosion develops, how it appears on various materials, and how it can be … Read more
Lines and Their Meanings Every drawing is composed of lines. Lines mark the boundaries, edges, and intersection of surfaces. Lines are used to show dimensions and hidden surfaces and to indicate centers. Obviously, if the same kind of line is used to show these variations, a drawing becomes a meaningless collection of lines. For this … Read more
Computer Graphics From the early days of aviation, development of aircraft, aircraft engines, and other components relied heavily on aircraft drawings. For most of the 20th century, drawings were created on a drawing “board” with pen or pencil and paper. With the introduction and advancement of computers in the later decades of the 20th century, … Read more
In general, any complete corrosion treatment involves cleaning and stripping of the corroded area, removing as much of the corrosion products as practicable, neutralizing any residual materials remaining in pits and crevices, restoring protective surface films, and applying temporary or permanent coatings or paint finishes. Repair of corrosion damage includes removal of all corrosion and … Read more
General Concepts The most important reason for weighing an aircraft is to find out its empty weight (basic empty weight) and to find out where it balances in the empty weight condition. When an aircraft is to be flown, the pilot in command must know what the loaded weight of the aircraft is and where … Read more
Applied Geometry Geometry is the branch of mathematics that deals with lines, angles, figures, and certain assumed properties in space. Applied geometry, as used in drawings, makes use of these properties to accurately and correctly represent objects graphically. In the past, draftsmen utilized a variety of instruments with various scales, shapes, and curves to make … Read more
Aircraft Cleaning Cleaning an aircraft and keeping it clean are extremely important. From an AMT’s viewpoint, it should be considered a regular part of aircraft maintenance. Keeping the aircraft clean can mean more accurate inspection results, and may even allow a flight crewmember to spot an impending component failure. A cracked landing gear fitting covered … Read more
Aviation Knowledge & Technical Study
Aero Guide provides structured aviation study materials, technical explanations, and educational resources based on FAA handbooks and other aviation references. Explore aviation fundamentals, aircraft systems, airframe structures, powerplant systems, weight and balance, and more to support your aviation learning journey.
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