I see some components such as ESCs say 'rated for 550/650 class quadcopters', but what is a 550 class? Size? Weight?Thanks

Hello,I am building a quadcopter, and would like some advice on how to wire things up correctly.Its going to be approximately 5kg in weight, I have some 330kv motors, 18" props, a 16,000 mah 10c 6S battery and a APM 2.5 and I am trying to get as…

Hello,I built a basic quadcopter for my first project (following instructions from this instructables page -> https://www.instructables.com/id/Cheap-Sturdy-1-Hour-Quadcopter/)   and now I would like to build a hexacopter for my second build, one…