ToDo Calculator’s aerospace calculator is an essential tool for aerospace enthusiasts, engineers, and professionals. Tailored for aerodynamics, flight dynamics, propulsion systems, and orbital mechanics, it offers advanced features and accurate calculations. With a user-friendly interface, it’s accessible to all levels of expertise, making it indispensable for designing aircraft, planning mission trajectories, and studying aerospace concepts.
Maximum Payload refers to the maximum amount of weight that an aircraft is designed to carry as cargo or passengers. It includes the combined weight of passengers, cargo, baggage, and any other items carried in the aircraft. This payload capacity is a critical factor in aircraft design, as it affects the operational flexibility and efficiency […]
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The thickness of a turbulent boundary layer can be estimated using the empirical relationship known as the “Prandtl’s mixing length theory.” According to this theory, the thickness (δ) of a turbulent boundary layer is often expressed as: Where: δ is the thickness of the turbulent boundary layer. x is the distance along the surface. Rex​
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Measures adhesive’s ability to withstand applied forces between materials. The formula is given by: Where: Bond Strength is the adhesive bond strength, Force is the maximum force required to pull apart the bonded materials, Area is the bonded area between the materials.
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In flight mechanics, fuel load refers to the quantity of fuel carried by an aircraft for a specific flight. This parameter is a critical consideration in aviation, impacting the total weight of the aircraft and consequently influencing its performance characteristics, including range, endurance, and fuel efficiency. The formula to calculate Fuel load as follows: Where:
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The nozzle expansion ratio refers to the ratio of the area of the nozzle’s exit to the area of its throat. It’s a critical parameter in the design and performance analysis of nozzles used in various engineering applications, particularly in propulsion systems like rocket engines and gas turbines. Where: ER = Nozzle expansion ratio Ae​
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A rectangular inlet refers to an opening or entrance with a rectangular cross-sectional shape through which fluid, such as air or water, can enter a system or structure. Where: A is the area of the rectangular inlet, “length” represents the length of the rectangle, “width” represents the width of the rectangle.
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Hertzian contact stress is an Analyzes stress between elastic bodies.The formula is given by: Where: σ is the Hertzian contact stress, F is the normal force applied to the contact area, R1​ and R2​ are the radii of curvature of the contacting surfaces.
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The battery weight fraction is a parameter in aerospace engineering that quantifies the proportion of an electric aircraft’s total weight attributed to the battery. This fraction is a crucial metric for assessing the impact of the battery’s mass on the overall weight of the aircraft, guiding design considerations for optimal performance and efficiency in electric
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A circular inlet area refers to the total surface area of a circular opening or entrance through which fluid, such as air or water, can flow into a system or structure. Where: A is the area of the circular inlet, π is a mathematical constant (approximately equal to 3.14159), r is the radius of the
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In flight mechanics, the skin friction coefficient is a dimensionless parameter representing the ratio of the frictional drag force between an aircraft’s surface and the surrounding air to the dynamic pressure. It characterizes the level of surface roughness or smoothness and is crucial in evaluating skin friction drag, a component of total aerodynamic drag. A
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