The “empty weight” of an aircraft, often referred to as the “basic empty weight” or “unladen weight,” represents the weight of the aircraft without any passengers, cargo, or fuel. It includes the weight of the airframe, engines, avionics, fixed equipment, and any required operating fluids such as oil and hydraulic fluid. The empty weight is […]
Empty Weight Calculator Read More »
Normal force per unit area refers to the force exerted perpendicularly on a surface per unit area. In other words, it quantifies the force applied by a fluid, solid, or any other medium onto a surface in a direction that is perpendicular to that surface. Pressure is a fundamental concept in physics and engineering and
Normal force per unit area Calculator Read More »
In the context of aircraft design and operations, “disposable load” refers to the total weight of items or cargo that can be carried by an aircraft in addition to its own empty weight (airframe, engines, avionics, etc.) and fuel. This includes passengers, cargo, baggage, and any other items carried on the aircraft for a specific
Disposable Load Calculator Read More »
The force on the surface refers to the physical interaction or push or pull that occurs at the boundary or interface between an object or substance and its surroundings. This force can arise from various sources and mechanisms, including mechanical, electromagnetic, or fluid dynamic interactions. Force (N) in N Freestream density (𝜌∞) in kg/m^3 Freestream
Force on the surface from the Newton’s second law Calculator Read More »
The “aspect ratio” of an aircraft’s vertical tail, often referred to as the vertical tail aspect ratio, is a measure of the elongation or slenderness of the vertical tail fin. Aspect ratio is an important parameter in aircraft design as it influences the tail’s efficiency in providing stability and control. The formula for calculating the
Aspect Ratio Of Vertical Tail Calculator Read More »
Total aerodynamic heating refers to the overall heat flux experienced by an object as it moves through a fluid medium, typically due to high-speed flight or reentry into an atmosphere. This heating phenomenon results from the combination of convective heating and radiative heating. Total aerodynamic heating is an important consideration in aerospace engineering and aerodynamics,
Total aerodynamic heating Calculator Read More »
The “bypass ratio” of an aircraft engine is a critical parameter in aviation that measures the ratio of the mass of air that bypasses the engine core (flows around the engine) to the mass of air that passes through the engine core (flows into the engine and is combusted). It’s a key design parameter for
Engine Bypass Ratio Calculator Read More »
The “rate of roll” in aircraft design and aviation refers to the angular rate at which an aircraft rotates about its longitudinal axis (the axis that runs from the nose to the tail). It measures how quickly an aircraft can change its bank angle (tilt) during a roll maneuver, such as initiating a turn. The
Rate Of Roll Calculator Read More »
The “wing taper ratio” is a parameter in aircraft design that describes the ratio of the wing’s tip chord to its root chord. The chord of a wing is the width of the wing from front to back, and the taper ratio indicates how the wing’s width changes from the root (base) to the tip.
Wing Taper Ratio Calculator Read More »
Non-dimensional velocity for flow over a cone is a dimensionless quantity used to represent the velocity of fluid flow relative to the speed of sound within the same flow, particularly in the context of flows over conical geometries. It is a common parameter used in aerodynamics and fluid dynamics to characterize and analyze the behavior
Non-dimensional velocity for flow over cone Calculator Read More »
