Tag Archives: happymodel

Review: Crazybee F4 Pro Whoop FC (V1 V2 V3 Changes)

The Crazybee F4 Whoop FC is designed by Happymodel, originally for brushless Tiny Whoops but are now also used in ultra-light micro quads, such as my favourite Sailfly. It’s a compact and light weight solution, as the radio receiver, FC and 4in1 ESC are all integrated into one single board.

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