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OA 7x4 Folding prop blades (2mm hinge pin)

Product Code: OA7X4
 (1 review)

Price: $22.92

1 in stock
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A pair of high quality very lightweight carbon 7 x 4 folding propeller blades made by OA Composites. These blades require smaller spinner/hub assemblies with 2mm diameter hinge pins. The last phot shows them assembled on a VM 25 mm spinner. A little trimming of the plastic cone and of the blade root is required to get a perfect folding action, this just takes a few minutes.

These nicely made blades are suitable for use with F5K type and smaller electric models.

Note this product consists of two propeller blades only. The central spinner/yoke assembly is not included. Also it is common for prop blades to not fit all spinner/yokes perfectly as supplied. It is often necessary to reduce the width the blade root slightly to ensure free folding movement. Also the cut out in the spinner cone often needs to be increased to allow the blades to fully extend. The root of the blade should not touch the spinner cone when the prop is fully opened.

OA 7x4 Folding Propeller Blade Specifications
Prop diameter 18 cm 7 in
Prop pitch 10 cm 4 in
Weight of 2 blades 2.6 g 0.09 oz
Width of blade root 5.0 mm 0.197 in
Hinge pin hole dia 2.0 mm 0.079 in
Max power 250 W

Reviews 1  

 Review by:

Am using these blades with a T-motor 1507/2700kv and a Tattu 2s 450-75c pack in a Fury and have good power. Blade finish is excellent and the 2mm pin mounting hole is accurate.

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