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What Are Miniature and Subminiature Bulbs?
Lighting is an important part of all modern airplanes. A typical airplane has anywhere from hundreds to thousands or even tens of thousands of individual bulbs. Some of them large, such as external navigation lights and anti-collision lights. Miniature and … Continue reading
What Is a Trip-Free Circuit Breaker?
Circuit breakers are found in nearly all modern airplanes. Not to be confused with fuses, they protect electrical equipment from overcurrent-related damage. If the current flowing through a circuit exceeds a safe amount, the circuit breaker will disrupt it. Current … Continue reading
The Beginner’s Guide to Self-Locking Nutplates
Nutplates offer a simple and effective solution for blind fastener installations. Also known as plate nuts or anchor nuts, they feature a threaded nut with an anchor base. Even if you can’t access the rear side of an assembly, you … Continue reading
Aluminum Foil Tape vs Duct Tape: What’s the Difference?
Not all tape is the same. There are different types of tape, two of the most popular being aluminum foil tape and duct tape. They both feature a sticky adhesive on one side, allowing them to cling to objects. Aluminum … Continue reading
6 Benefits of Push-to-Open Drain Valves
Push-to-open drain valves are used extensively in the aviation industry. As the name suggests, they are used to drain fluid — typically fuel or oil — via a pushing action. Most airplanes, particularly piston-engine airplanes, have one or more drain … Continue reading
Common Cross-Sectional Shapes for Washers
Are you familiar with the different cross-sectional shapes in which washers are made? All washers have a cross-sectional shape. It represents the shape of a washer if you cut it straight through the middle and view it from the side. … Continue reading
Why Sheet Metal Screws Have Sharp Threads
When inspecting a standard sheet metal screw, you may notice that it has sharp threads. All screws, of course, have threads. Consisting of helical ridges that extend fully or partially down the shank, they convert rotational force into linear force … Continue reading
Mitre vs Square Cut Cotter Pin Ends: What’s the Difference?
Do you know the difference between mitre and square cut cotter pin ends? Cotter pins are commonly used in machinery and mechanical assemblies. Also known as split pins, they consist of a U-shaped piece of metal with two prongs of … Continue reading
What Type of Insulation Do Ring Terminals Have?
Ring terminals are used in many electrical systems. You can find them in automotive wiring harnesses, marine equipment, aircraft controls and more. As their name suggests, ring terminals feature a ring-shaped piece conductor that “terminates” the end of a wire. … Continue reading

