Hey there!
So…I’m thinking of getting https://www.robotshop.com/en/lynxmotion-mes-reconfigurable-folding-uav-frame-kit.html with 4x https://store.flitetest.com/flite-test-radial-2218b-1180kv-brushless-motor-flt-3036/p846362 with the standard 1045 props on and use the Pixhawk to fly it. But I’ve realized that the frame will be a bit heavier than the usual ones (I’ll be using the quadrotor configuration). I’m also thinking of using a camera and gimbal (along with a payload-carrying and dropping system in the future for which I will use 8 motors in an X configuration). I will also be using 2 4s 5200mAh batteries for longer flight time. The approximate weight of the UAV will be about 2 - 2.5 Kgs. Will the 1180kv motors with the 1045 props provide sufficient thrust for this UAV? Or do I need to change these, if yes then which motors/props should I use and why? Thank you 
On the page you included, they indicate “Over 1Kg/motor on 4s and most prop choices” and “Recommended Propeller: HQ 10 x 4.7”, so in theory, using this combination, each motor + prop combination should provide >1Kg of thrust. for a 2Kg quadcopter, that’s perfect. For a 2.5Kg drone, the total thrust from all motors should be 5Kg (or more). Normally a 2:1 thrust to weight ratio is desirable.
Consider this for power distribution (only one ESC would need a BEC, you would disconnect and tape off the others):
It’s made for up to 8 motors, 8 ESCs and two batteries.
Looking forward to seeing your creation.
Thank you @cbenson! Just one more question: why is it necessary to disconnect and tape off the VCC for the ESCs? I’ve heard that you should remove the VCC wire when the ESC lead goes directly into the flight controller to safeguard the flight controller from any voltage spikes. But for the PDB that you have recommended, the ESC leads connect to the PDB. So I’m somewhat confused why it’s still necessary to disconnect the power leads even though they are going straight into the PDB and not the flight controller?
@Hersh Normally one 1A to 2A BEC is sufficient to provide power to the electronics (flight controller, radio receiver etc.), so having the BEC from all of the ESCs connected on the same power rail providing power will likely be problematic. As such, it’s best to disconnect (NOT cut) the 5V output from all but one ESC. You can follow this: http://www.lynxmotion.com/images/jpg/stbec.jpg
For the PDB suggested, you would not need to remove any wires, though that’s not always the case for other PDBs.
