heavy lift

  1. D

    Calculating the frame strength of a 40-kilogram copter

    Hello everyone, we are designing a heavy-lift multirotor using RuiH-Tech PX-18 motors (datasheet attached). The copter will operate at low RPM for higher energy efficiency. We have run into a problem choosing the frame and would like to do it properly rather than just picking something at...
  2. B

    Large heavy lifter multicopter, as cheap as possible

    Hi. I need a heavy lifter that can lift 10lb with a decent TWR for a few minutes, and I want to make it as cheap as possible within those constraints. I'm aware that cheap is relative and this will probably end up >1k on the low end. The entire purpose of this thing is to fly straight up, drop...
  3. Raptortech

    Custom GIANT multirotor - 25lbs payload, 20 minutes flight

    Hope my title caught your attention! :D It is true: I am building an aerial photography craft of epic proportions. Right now, I have a setup in mind, but before I go an throw down $7000, I thought I'd chat with everyone first. So my plan (as of 6/29/15) is to build a custom X8 frame. Motors...