Aircraft Archives

A-TOMATO-FLAMES Explained: Understanding This Common Aviation Mnemonic

Here’s a hot topic! What happens when a tomato flames? In aviation training, few mnemonics are as well known as ATOMATOFLAMES. This handy memory aid serves pilots preparing for a checkride, oral exam, or written exam. It helps them recall the FAA’s required instruments and equipment for VFR (Visual Flight Rules) flight under FAR (Federal Aviation Regulations) 91.205. Understanding this regulation is essential for student pilots, private pilots, and instructors (CFIs) alike. What does ATOMATOFLAMES mean? The meaning behind ATOMATOFLAMES represents the equipment that every aircraft must have when operating under VFR during the day per FAR 91.205(b).The acronym stand for: Equipment Functions A Airspeed Indicator Displays aircraft speed through the air T Tachometer Indicates engine RPM O Oil Pressure … Read more

Understanding Angle of Attack: Essential to Safe and Efficient Flight

Angle of attack (AOA) is a fundamental concept in aviation that influences every aircraft type, from training aircraft like the Cessna 172 to large jets like the Airbus A320. Knowing what angle of attack is and how it affects aerodynamics is essential for safe flight and high performance. What does a pilot need to know? Read on! What is Angle of Attack? By definition, angle of attack is the angle between an airfoil’s chord line (an imaginary straight line from the leading edge to the trailing edge) and the relative wind (the airflow opposite the flight path). Pilots constantly manage this angle with the airplane’s controls, using pitch and attitude changes to maintain lift and stability. The AOA can be … Read more

Types of Aircraft: From Balloons to Supersonic Jets

Aviation is filled with a wide variety of aircraft with each designed for a specific purpose. Whether you fly as a passenger on a commercial aircraft, study military models like stealth aircraft, or admire a balloon drifting over the countryside, every type of aircraft contributes to the story of flight. Categories of Aircraft Aircraft can be grouped into broad categories and then subdivided into more specific types. The most common distinction is between civil aircraft and military aircraft: Civil Aircraft include private jets, commuter aircraft, regional jets, cargo aircraft, general aviation, which includes flight training, air taxi services, light-sport aircraft (LSA) and ultralight airplanes. The most common would be full-service carriers like American Airlines. Military Aircraft include bombers, fighter jets, … Read more

What is a Dutch Roll? The Aircraft Maneuver Every Pilot Should Know

In aviation, Dutch roll refers to a potentially dangerous flight instability where an aircraft experiences a combination of yaw and roll oscillations. It can either be a specific maneuver or a naturally occurring aircraft phenomenon. Definition and Dynamics of the Dutch Roll Dutch roll is an aircraft motion where the tail is wagged side to side (yaw) while the wings rock from side to side (roll), with both movements occurring out of phase. It is caused by aerodynamic coupling between the yaw (side-to-side motion) and roll (banking motion) axes of an aircraft. This is sometimes called yaw and roll coupling. When a jet or commercial airliner, like a Boeing 737 MAX, experiences this instability, it may begin to oscillate. These … Read more

Understanding Aviation Fuel: Types, Uses, and Safety

Aviation fuel powers the world’s aircraft, supporting countless commercial, general, and military flights each year. From jet fuel to avgas, this vital resource comes in various grades and compositions, each with specific performance characteristics. In this article, I’ll explore what aviation fuel is, how it’s used, safety issues, and the future of sustainable aviation fuel (SAF). What is Aviation Fuel? What Aviation fuel refers to any fuel used to power airplanes or aeroplanes, primarily Jet A/Jet A-1, Jet B, and aviation gasoline (avgas). The chemical formula, composition, autoignition temperature, and flash point vary depending on the type. These properties are key to ensuring safe engine performance under extreme conditions. Types of Aviation Fuel Compared Different types of fuel are used … Read more

Understanding Ailerons: What are they and how do they work?

Ailerons are essential flight control surfaces mounted on the trailing edges of an airplane’s wings. Their primary function is to control the aircraft’s movement along the roll axis, which allows the aircraft to bank left or right. Whether flying a Cessna Skyhawk here at Epic or a Boeing 737 for the airlines, understanding how they work is fundamental to aircraft operation and maintenance. What do ailerons do? The function of ailerons is to manage roll control by creating differential lift on each wing. When the right aileron deflects downward and the left aileron upward, the airplane rolls to the left, and vice versa. This movement is coordinated through cables or other mechanical linkages in the flight control system. How do … Read more

Understanding Indicated Airspeed: A Pilot’s Guide

Learning to fly a plane, whether a light aircraft like a Cessna 172 here at Epic or a Boeing 747 jet, involves mastering many cockpit instruments. However, none is more essential than the Airspeed Indicator (ASI). Indicated Airspeed (IAS) is a fundamental concept in pilot training because it helps pilots measure and manage flight performance, lift-to-drag ratio, and safety-critical V-speeds. Here, I’ll get into IAS, explain how it works, define related airspeed types, and show you how to read and correct airspeed for better accuracy. Let’s get started! What is indicated airspeed (IAS)? A good definition for indicated airspeed is the speed shown directly on the aircraft’s ASI without correction for instrument errors, altitude, or air density. It reflects the … Read more

What is a Pitot Tube?

A simple definition for a pitot tube is a device used to measure the speed of a fluid, usually air. Pitot tubes are crucial for aircraft. They feed data to the airspeed indicator, which informs pilots as to how fast they’re flying relative to the surrounding air. A blocked or malfunctioning pitot tube can lead to incorrect readings, which can create serious flight safety risks. Pitot tubes are an important part on every aircraft. Understanding How a Pitot Tube Works Understanding the Two Key Openings in a Prandtl Pitot Tube: Front-facing (impact) opening (hole): Also known as the ram air inlet, this measures total pressure (also called stagnation pressure). This is the pressure felt when air is brought to a … Read more

Aircraft Lighting: Types, Importance, and Regulations

Aircraft lighting plays a critical role in aviation safety and operation. Lighting helps pilots navigate and communicate. Proper lighting is required to comply with FAA and ICAO regulations. From anti-collision lights to position lights, each system serves a unique function. Proper lights on aircraft ensure both commercial pilots and military aviators can fly safely in all conditions. In this guide, I examine the history, importance, and aspects of aircraft lighting while providing a guide for aviation enthusiasts, mechanics, and pilots. Types of Aircraft Lights and Their Roles There are two main types of aircraft lighting: interior and exterior. Interior lighting improves visibility inside the cabin and cockpit, and exterior lighting enhances safety by making aircraft visible in the sky and … Read more

Ultralight Aircraft: Planes You Can Fly Without a Pilot License

What is an Ultralight Aircraft? A true ultralight aircraft is a lightweight, small, and typically single-seat airplane designed for recreational flying. People like these aircraft for their affordability, ease of use, and the fact that many models do not require a pilot license. However, in the USA, ultralight aircraft must meet specific FAA regulations. For example, a true ultralight cannot exceed the maximum empty weight of 254 pounds or a top speed of 63 mph (55 k/ph). Although we don’t train ultralight pilots here at Epic, I am often asked about them and thought it would be helpful to address them in this article. Under FAA Part 103 regulations, ultralight aircraft are subject to specific requirements to qualify as true … Read more