From Freefly

The new ALTA has 18 inch folding props that whisper at a hover speed of 4600 RPM. As if to say ‘don’t worry ALEXA Mini, I got you…….I got you.’

13.6kg (30lb) AUW
Hover Speed: 4,600rpm
Specific Power: 144W/kgf
Thrust Margin: 1.85:1

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