#### This is the same effect as a **propeller** cutting through the air. In the figure, the two arrow lines show the position of the **propeller** tips. You can see that the high pitch **propeller** covers the same distance travelled with only half the rotation of the **propeller**. With both **motors**/**propellers** spinning at the same RPM, the higher pitch **propeller** will travel further in the same amount of time. **prop thrust** at specified V **prop** efficiency at specified V ฯ
= 7.3 Q = Qm ฮฉ specified **thrust** required voltage **motor** torque lines for different voltages ฯ
= 4 Figure 5: **Prop** and **motor** parameters obtained from a speci๏ฌed ๏ฌight speed V and a required **thrust** T. The required **motor** voltage v is read from the intersection of the **prop** and **motor**. Static **thrust** is defined as the amount of **thrust** produced by a **propeller** which is located stationary to the earth For example, if our propulsion **motors** are 1500 grams and we want to build a four-wheeled drone first to **calculate** the total weight that can be raised by the four **motors**: Lifting force = number of **motors** * **thrust** force (grams) e Calc. **Propeller** (for each **motor**!):.

**thrust**equation of a

**propeller**and a rotor is: =(1 2 โ 2 + 1 2 ร 2) ๐ (10) For the case of . v. โ = 0, this equation calculates the static

**thrust**. T. st. of a

**propeller**, or the

**thrust**. T. of a hovering main rotor in or out of ground effect, or the

**thrust**of a static tail rotor. For the case of zero angular velocity, ฯ = 0, the. This combination of force and speed equates to a power of 36,620 hp (27,310 kW). These examples illustrate how cumbersome it is to convert between

**thrust**and power. However, you may be wondering why jet

**engines**or rocket

**engines**are rated in units of

**thrust**but

**propeller**-driven

**engines**are rated in units of power. Aerospace

**Calculator**/ Aircraft Design / Airplane Performance

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**Calculator**.

**Thrust**by

**propeller**engine is directly proportional to the efficiency of

**propeller**and shaft power..