Aircraft Weight & Balance - AMT 114T PDF
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This document provides an overview of aircraft weight and balance, including terminology, coordinate systems, and station numbers. It details various aspects essential for aircraft design and manufacturing.
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AMT 114T AIRCRAFT WEIGHT & BALANCE LEANING & CORROSION CONTRO WEIGHT & BALANCE TERMINOLOGY 1.Empty Weight: The weight of an aircraft without any passengers, crew, or baggage. 2.Useful Load: The total weight of passengers, crew, baggage, and fuel an aircraft can carry. 3.Maximum Gross Weight: T...
AMT 114T AIRCRAFT WEIGHT & BALANCE LEANING & CORROSION CONTRO WEIGHT & BALANCE TERMINOLOGY 1.Empty Weight: The weight of an aircraft without any passengers, crew, or baggage. 2.Useful Load: The total weight of passengers, crew, baggage, and fuel an aircraft can carry. 3.Maximum Gross Weight: The maximum total weight an aircraft can safely operate at. 4.Maximum Takeoff Weight: The maximum weight at which an aircraft can safely take off. 5.Maximum Landing Weight: The maximum weight at which an aircraft can safely land. 6.Maximum Ramp Weight: The maximum weight at which an aircraft can be towed or moved on the ground. 7.Basic Empty Weight: The empty weight plus the weight of optional equipment installed in the aircraft. WEIGHT & BALANCE TERMINOLOGY 8.Standard Empty Weight: The empty weight plus the weight of unusable fuel and full operating fluids. 9. Payload: The total weight of passengers, crew, and baggage. 10. Baggage Weight: The total weight of all baggage carried on the aircraft. 11. Fuel Weight: The total weight of fuel on board the aircraft. 12. Cargo Weight: The total weight of cargo carried on the aircraft. 13. Operating Weight: The empty weight plus the weight of crew, fuel, and oil. 14. Zero Fuel Weight: The weight of the aircraft without any fuel on board. WEIGHT & BALANCE 16. CG Envelope: The range of acceptable CG locations for an TERMINOLOGY aircraft. 17. Forward CG: A CG that is too far forward of the recommended range. 18. Aft CG: A CG that is too far aft of the recommended range. 19. CG Range: The acceptable range of CG locations for an aircraft. 20. CG Limit: The maximum or minimum allowable CG location. 21. CG Chart: A graphical representation of the CG envelope for an aircraft. 22. Weight and Balance Sheet: A document used to calculate and record the weight and balance of an aircraft. Aircraft coordinate systems -are used to define the orientation and position of an aircraft in three- dimensional space. They are crucial for navigation, flight control, and various other aspects of aircraft operation. The primary reference axes in an aircraft coordinate system are: X-axis: Longitudinal axis, running from nose to tail. Y-axis: Lateral axis, running from left wingtip to right wingtip. Z-axis: Vertical axis, running from bottom to top. These axes provide a framework for measuring angles, distances, and other geometric quantities related to the aircraft's position and orientation. Primary Reference Axes In An Aircraft Coordinate System Station numbers are a system used in aircraft design and manufacturing to precisely locate various points along the length of the fuselage. They provide a standardized reference system for engineers, technicians, and pilots. How Station Numbers Work: 1.Baseline: The starting point, or "station 0," is typically located at the nose of the aircraft. 2.Increment: Station numbers increase in increments (usually in feet or meters) as you move towards the tail. 3.Reference Points: Key components like the wings, engines, and landing gear are referenced by their station numbers. This ensures consistency and accuracy in design, construction, and maintenance. Why Station Numbers Are Important: Design and Manufacturing: They facilitate precise measurements and alignment of components during the construction process. Maintenance and Inspection: Technicians can accurately locate specific areas for maintenance, inspections, and repairs. Weight and Balance: Station numbers are essential for calculating the aircraft's center of gravity and ensuring proper weight distribution. Flight Planning: Pilots use station numbers to determine the location of fuel tanks, cargo compartments, and other critical equipment. Examples of Aircraft Station: Wing Station: The station number where the wing attaches to the fuselage. Engine Station: The station number of the engine that is mounted. Landing Gear Station: The station numbers for the front, main, and nose landing gear. By understanding station numbers, you can gain a better appreciation for the precision and complexity involved in aircraft design and operation. Wing Station Engine Station Landing Gear Station