FPV propeller names often contain several numbers, followed by letters or a rotation label. A marking such as 10×5×3 provides useful information, but it is easy to confuse the blade count with the package quantity or read pitch as a direct measure of flight speed.

Understanding the format makes product listings easier to compare and helps you describe the exact propeller you need.

Breaking Down 10×5×3

In a diameter × pitch × blade-count format, the three numbers describe the following:

Marking	Meaning	Unit
10	Propeller diameter	Inches
5	Nominal pitch	Inches per revolution
3	Number of blades on each propeller	Blade count

The final “3” describes one three-blade propeller. It does not mean that three propellers are included in the package.

Diameter Is Not Blade Length

Propeller diameter describes the overall diameter of the circle swept by the rotating blades. It is not the length of a single blade measured from the hub.

That distinction matters when reading a product description or checking dimensions. A 10-inch propeller does not have blades that each extend 10 inches from the center.

Pitch Is Not a Flight-Speed Rating

Pitch describes the propeller’s nominal theoretical advance in one revolution. In the example above, the listed pitch is 5 inches.

This does not mean the aircraft will move exactly 5 inches every time the propeller rotates. It also does not provide a guaranteed flight speed.

Use pitch to identify the specified propeller, then refer to the recommended motor combination and relevant performance data when evaluating the complete setup.

Read Rotation and Package Quantity Separately

A listing may also include CW and CCW, referring to clockwise and counterclockwise rotation versions. These are separate from diameter, pitch, and blade count.

For example, a package described as “2 CW + 2 CCW” contains four complete propellers. If they are three-blade models, each individual propeller has three blades.

When ordering, record the rotation quantities explicitly rather than relying on words such as “pair” or “set” without checking the package description.

Not Every Manufacturer Uses the Same Naming System

Some products show diameter and pitch separated by an “×”. Others use compact model codes, prefixes, or additional letters.

Do not assume every sequence of digits follows the same rule. Use the manufacturer’s specification table to confirm the dimensions, blade count, and meaning of any suffix.

What the Size Code Does Not Tell You

Even when you understand the marking, it is not a complete specification. Check the separate product information for:

• Center-hole or shaft diameter
• Hub thickness and mounting method
• Material and product version
• Rotation direction
• Number of propellers supplied
• Recommended operating limits and motor compatibility

A clear size code makes comparison easier. Confirming the remaining details helps ensure that the product you order matches the intended installation.

Browse QINKO FPV propellers, or contact our team to confirm the specifications and quantities required for your order.