chapter 1-Measurement

chapter 1- measurement

The aeronautical engineer is required to be conversant with the basic laws of Physics. In additions with the laws and application, he/she must also be familiar with the unit in common used, both SI and fps.

The system of measurement used will determine the unit of quantity.Lets start with SI base unit. Since secondary school, you have been taught there are five (5) basic quantity. As follow:

1. length, meter
2. temperature, Kelvin
3. electrical current, Ampere 
4. time, second
5. Mass, kilogram

In this level, you should be able to understand there are seven (7) base quantity. It comes from the above five plus
     6.  Luminous Intensity, Candela
     7.  Mole, mol.

Table below shows SI and Non-SI units:

Since aviation engineer need to be familiar with both SI and fps system, they should be able to change from one sytem to another. Some common unit conversion must be in your mind. For example kindly refer table below: