Estimating aircraft wing area is first thing that allows you to define the rest of the geometry of the aircraft.
However, you generally need an estimate of mass to determine your wing area. If you are building functional UAV which
has a specific purpose this section makes an intial estimate of aicraft total mass based on your payload, endurance and
range requirements.

2. Estimation of Aircraft Wing Area

An estimate of the aircraft wing area is calculated in this section based in the total aircraft mass estimate in the previous
section.

3. Estimation of Aircraft Drag and Cruise Thrust

In order to determine the thrust required to power your aircraft you need to determine drag.

4. Estimation of VTOL Thrust and Rotor Area

The purpose behind this step is to estimate your required rotor or propeller radius, diameter.

5. Estimation of Battery Power and Capacity for Range and Endurance

In this stage you work the battery capacity for required for aircraft range and endurance.

6. Estimation of Stabilising and Control Surface Areas

Now that wing area is known you can work out the rest of the aircraft geometry.

A.1 Conversion factors

Value

Units

Conversion Value

Units

1

Inch (in)

0.0254

Metre (m)

1

Feet (ft)

0.3048

Metre (m)

1

Square inch (sq in)

0.000645

Square metre (m^{2})

1

Square feet (sq ft)

0.0929

Square metre (m^{2})

1

Kilometre (km)

1000

Metre (m)

1

Statutory mile

1609.3

Metre (m)

1

Nautical mile (nm)

1828.8

Metre (m)

1

Kilometre per hour (kph)

0.2778

Metres per second (ms^{-1})

1

Statutory mile per hour (mph)

0.4470

Metres per second (ms^{-1})

1

Nautical mile per hour (knot)

0.5144

Metres per second (ms^{-1})

1

Pound (lb)

0.3732

Kilogram (kg)

A.2 Standard Altitude

ISA (International Standard Atmostphere) air density calculator.

Disclaimer: Eiteog makes every effort to provide information which is as accurate as possible. Eiteog will
not be responsible for any liability, loss or risk incurred as a result of the use and application of information on
its website or in its products. None of the information on Eiteog's website or in its products supersedes any information
contained in documents or procedures issued by relevant aviation authorities, manufacturers, flight schools or the
operators of aircraft, UAVs.