It's a regular folding propeller hub with a modification that prevents the blades from overlapping when they are folded. Have a look at my photos if you want to know how this is done.
The blades I use are the Graupner CAM 8x4.5 (TURNIGY 28-36 1200 Kv motor).
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The blades I use are the Graupner CAM 8x4.5 (TURNIGY 28-36 1200 Kv motor).
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