Computing Area of Two-dimensional Solids Area is a measurement of the amount of surface of an object. Area is usually expressed in such units as square inches or square centimeters for small surfaces or in square feet or square meters for larger surfaces. Rectangle A rectangle is a four-sided figure with opposite sides of equal length and parallel. [Figure 1-13] All of the angles are right angl..

항공산업기사 준비하시는 분들을 위한 산업기사 전자실기 특강 진행합니다. 작년에는 반응도 좋았고 참여율도 괜찮았는데 올해는 어떨지 궁금하네요. 꼭 산업기사를 준비하시는 분들만이 아니라도 정비사 면장 준비하시는 분들도 공통된 내용이 많으니 함께 들어보셔도 좋을 것 같습니다. 미리미리 ..

Algebra Algebra is the branch of mathematics that uses letters or symbols to represent variables in formulas and equations. For example, in the equation D = V × T, where Distance = Velocity × Time, the variables are: D, V, and T. Equations Algebraic equations are frequently used in aviation to show the relationship between two or more variables. Equations normally have an equals sign (=) in..

항공분야에 임한지 20년이 넘어가는 시점에 관련 정보를 요구하는 분들도 많아지고 잘못된 오류들이 정보인냥 인터넷을 떠돌고 있는 현실에 보다 적극적으로 미래를 준비하는 분들에 도움이 되고자 사무실을 열게 되었습니다. 제 개인적 프로필은 블로그의 글들을 읽어보시면 아실 수 있을 것으로 생..

Functions of Numbers Chart The Functions of Numbers chart [Figure 1-10] is included in this chapter for convenience in making computations. Each column in the chart is listed below, with new concepts explained. • Number, (N) • N squared, (N2) • N cubed, (N3) • Square root of N, (√N) • Cube root of N, ( 3√N) • Circumference of a circle with diameter = N. Circumference is the line..

Positive and Negative Numbers (Signed Numbers) Positive numbers are numbers that are greater than zero. Negative numbers are numbers less than zero. [Figure 1-8] Signed numbers are also called integers. Addition of Positive and Negative Numbers The sum (addition) of two positive numbers is positive. The sum (addition) of two negative numbers is negative. The sum of a positive and a negative num..

사무실 오픈을 맞아 얼마간 중지되어 있는 A&P 무료강의를 다시 시작하려 합니다. 관심있는 분들의 많은 참여 바랍니다. ▶ 일시 : 2010년 2월 6일 부터....매주 토요일 오전 9시~11시 ▶ 장소 : AEROKOREA 사무실 (당산역 #12 출구 100m) ▶ 교재 : FAA A&P Technician Textbook 1set ▶ 문의 : 070-7522-4955 (통화가 안되는 경우 ..

Percentage Percentage means “parts out of one hundred.” The percentage sign is “%”. Ninety percent is expressed as 90% (= 90 parts out of 100). The decimal 0.90 equals 90⁄100, or 90 out of 100, or 90%. Expressing a Decimal Number as a Percentage To express a decimal number in percent, move the decimal point two places to the right (adding zeros if necessary) and then affix the percent..

Ratio A ratio is the comparison of two numbers or quantities. A ratio may be expressed in three ways: as a fraction, with a colon, or with the word “to.” For example, a gear ratio of 5:7 can be expressed as any of the following: 5⁄7 or 5:7 or 5 to 7 Aviation Applications Ratios have widespread application in the field of aviation. For example: Compression ratio on a reciprocating engine i..

Division of Decimal Numbers Division of decimal numbers is performed the same way as whole numbers, unless the divisor is a decimal. When the divisor is a decimal, it must be changed to a whole number before dividing. To do this, move the decimal in the divisor to the right until there are no decimal places. At the same time, move the decimal point in the dividend to the right the same number o..