The following chart has been provided by the fine people at Top Flite. Top Flite has been supplying the R/C industry with quality aircraft kits, propellers, covering material, and covering accessories for many years.
How to use this Chart
Note: Four Stroke engines are typically higher torque engines and should use the larger props indicated in the range.
Recommended prop ranges will vary depending on your particular engine and airplane. This chart represents average prop usage and should be used only as a general guideline. Always refer to the manufacturer's instructions included with your engine.
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