Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task C. Weight and Balance

AM.I.C.R3

Risk management

Use of scales.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - General p. 7-26
Chapter 7: Aircraft Materials, Hardware, & Processes › Aircraft Metals › Rockwell Tester
used as a guide in selecting the weight (or weights) and in reading the dial. For the B-scale test, use the red weight and read the red numbers. For a C-scale test, add the black weight ... Should an overlap occur at the top of the B-scale and the bottom of the C-scale, use the C-scale setup…
Aircraft Weight and Balance Handbook p. 3-3
Chapter 3: Weighing the Aircraft and Determining the Empty Weight Center of Gravity › Preparation for Weighing › Scale Preparation
which they are to be used and allowed to come up to temperature at least 2 hours prior to use. Scales should not be used in temperature extremes below 40 °F or above 100 °F unless the scale is specifically ... designed for use in those temperatures. Electronic scales are very sensitive and, if subjected to freezing temperatures, the liquid displays may be damaged beyond use. Figure 3-3. Load cell scales…
Aviation Maintenance Technician Handbook - General p. 5-21
Chapter 5: Physics for Aviation › Radiation › Temperature
conversions may be used for the calculations of changes in the state of gases. The Kelvin and Centigrade scales are used more extensively in scientific work; therefore, some technical manuals may use these scales in giving directions and operating instructions ... scale is commonly used in the United States, and most people are familiar with it. Therefore, the Fahrenheit scale is used in most areas of this book…