A plain bearing, sometimes referred to as a bushing, is a mechanical component implemented to minimize friction between a rotating shaft and its stationary support pieces. They are usually made from soft metal or plastic and feature an oil film in order to support the rotating shaft on the much harder shaft journal. Plain bearings are manufactured in many types and have a variety of functions. This blog will serve to explain a bit about each type of plain bearing and their uses.


Read more »


An auxiliary power unit (APU) is a small turbine engine installed near the rear of the fuselage and serves as an additional energy source in starting one of the main engines on an airliner or business jet. Though a number of airports in the United States restrict the operation of APUs (especially at night) due to the noise they produce, the majority of an APUs usage is on the ground, before take-off and after landing. In addition to its starting capabilities, APUs are equipped with an extra electrical generator that creates enough power to operate onboard lighting, galley electrics and cockpit avionics.


Read more »


Radar is an acronym for Radio Detection and Ranging. At its simplest, an aircraft radar system consists of a transmitted radio signal aimed by an antenna in a particular direction, and a receiver that detects the echoes of any objects in the path of the signal. The transmitter consists of an electronic circuit that oscillates at a specific frequency, much higher than those used for TV or radio broadcasts. This signal is sent out in small bursts of electromagnetic energy, called pulses, through which the antenna produces a narrow beam. The distance between the target and the antenna is determined by the time it takes between transmitting the pulse and receiving the echo. Because the radar signal travels at the speed of light, which is constant, a radar system can easily determine how far away an object is and how fast it is traveling.


Read more »


There are many types of wings for various aircraft. Some may be long or short, and others wide or thin. Some commercial aircraft however, may feature a curved tip at the end of the wings. These aircraft wingtips can often prove beneficial to aircraft performance, and contrary to some beliefs, they can even increase an aircraft’s lift. In this blog, we will explore the functionality of these curved wingtips and why some commercial aircraft feature them.


Read more »


When was the last time you took your car in to the shop? Routine checkups are an important part of ensuring your car will run reliably. Similarly, aircraft must routinely go through standardized examinations called base maintenance. Base maintenance includes any modifications, repairs or alterations to the airframe, power plants, aircraft propellers, instruments, flight inspection equipment, avionics, test equipment, and any other aircraft accessories.  


Read more »


There is a library of resources on and offline on how to replace car tires, as well as how to maintain them, and what to look out for when selecting new tires. But when it comes to information on aircraft tires, there aren’t as many resources or information readily available. It’s doubly important to know how to maintain your aircraft tires because the process can be lengthy and far more expensive than replacing car tires. Read on below for more information on aircraft tire maintenance and selecting new tires. 


Read more »


An aircraft engine is a remarkably complex piece of machinery, with hundreds of moving parts that operate outside of the perception of the pilot’s senses. Most mechanical issues in an engine begin affecting the aircraft before they can be seen, heard, or felt. Fortunately, modern technological innovations have led to the creation of aircraft engine monitoring systems, arrays of sensors and digital computers that are designed to help the pilot gauge the health and status of their aircraft. These systems can determine what kinds of maintenance might be required for an aircraft’s engine, or help them determine if an engine is fit for operations. While typically used on commercial aircraft, they are popular for personal aircraft as well.


Read more »


Every part of an aircraft has a specific function, and with that function, specific maintenance requirements. The Federal Aviation Authority mandates regular maintenance and inspections of all aircraft, with some parts being required to be replaced after a certain number of hours in flight, no matter their current condition.


Read more »


Chances are, you have probably used a fastener or a machine with fasteners in it within the past week. Used to make a connection between two components, fasteners are small pieces of hardware that come in very handy in a lot of different circumstances. The aerospace industry is particularly fond of fasteners as they form a rigid but temporary connection.


Read more »


The Federal Aviation Administration (FAA) is an agency of the United States Department of Transportation; they are responsible for the oversight and regulation of aviation within the United States, as well as operation of the National Airspace System (NAS). The primary responsibility of the FAA is to ensure the safety of civil aviation. Their regulation responsibilities also encompass the following: development of aeronautics, operation of air traffic control and navigation systems for civil and military aircraft, regulation of U.S. commercial space transportation, and the development of programs to mitigate aircraft noise and other environmental effects of aviation. The FAA also controls the construction and operation of airports; adding to the list of complex responsibilities. 


Read more »


Recent Twitter Posts