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APC SAE Prop Inserts - Fit S400 and Slow Fly Series Props which have .312" (5/16" .794mm) adapter ring recess. Each Package contains 18 each 3/16" (.190" 4.82mm) and 2.25" (5.72mm) inserts. SKU Number: APCAR18SF
Spru of APC Standard E series inserts. Fits any prop with a .375" adapter-ring recess. 6 each of 5 different adapter rings.
1/8": 3.2mm
.160": 4mm
3/16": easily drilled close to 5mm using a #8 or 13/64" drill
.231": easily drilled to 6mm using a letter "B" drill bit
5/16"
Note: The factory-drilled hole in APC props should be carefully drilled slightly oversize. Use a centering ring to center the prop; the centering-ring recess is on center.
APC Metric Prop Inserts - Fit S400 and Slow Fly Series Props which have .312" (5/16" .794mm) adapter rin recess. Each Package contains 12 each 3mm, 5mm and 6mm inserts. SKU Number: APCMPI
APC 6 x 5.5 Thin Electric Propeller LP06055E SKU Number: APC06055E
APC Electric Propellers and Prop Inserts
APC electric propellers are a workshop standard for electric-powered models, and this category spans a wide range of diameters and pitches along with the inserts that adapt them to different motor shafts. The E series is designed for the lighter loads and higher rpm typical of electric setups.
Sizes and Materials
Listings run from small props such as the 4.75 x 4.75 up through larger sizes like the 13 x 5.5, letting you match diameter and pitch to your motor and airframe. Several are molded composite, and options like the 4.75 x 4.75 carbon fiber prop and the 7 x 7E thin electric add stiffer choices for higher-rpm use. The 5 x 7.5 Speed 400 prop targets the popular Speed 400 power class.
Prop Inserts
APC standard E inserts and SAE inserts fit the prop hub to your motor shaft, so the same prop can serve different setups.
Browse the sizes and inserts above to fit your electric power system.
RPM LIMITS The following are suggested RPM limits for APC "E" Propellers:
Thin Electric (E) Propellers and Polycarbonate (Durable) FPV Propellers Maximum RPM=150,000/prop diameter (inches).
 "APC SAE Prop Inserts - Fit S400 and Slow Fly Series Props")
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 "APC 5 x 7.5 Speed 400 Electric Prop")
 "APC 13 x 5.5 Electric Propeller")
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 "APC Metric Prop Inserts - Fit S400 and Slow Fly Series Props")
 "APC 4.1 x 4.1Electric Prop")
 "APC 4.5 x 4.1 Electric Prop")
 "APC 4.7 x 4.2 Speed 400 Electric Prop")
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 "APC 4.75 x 5.5 Thin Electric Prop")
 "APC 5 x 5 Speed 400 Electric Prop")
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 "APC 5.5 x 4.5 Speed 400 Electric Propeller")
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