Tarot FY680 Hexacopter APM 2.6 with 13 inch Propeller Carbon Composite upgrade

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Upgraded my cheap plastic props to some Carbon Composite 13 inch monsters. Well they are much bigger than the previous 12 inch props anyway. Needs some tuning now with the bigger props.
Tarot FY680 is running with APM 2.6 Arducopter 3.1.1
Afro 30A ESCs
Turnigy MultiStar 3508 640kV 14 Pole motors
Flying really well now with 13 x 4 Carbon 3k Props
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