Here's my quad copter flying with my 1.7 kg 3/4" plywood bench testing jig designed to prevent it from flying.
I was in the backyard yesterday testing my failsafe settings and decided to give it some throttle, much to my surprise it actually lifted off. I'll have to try lifting something in the near future... and I'll have to clamp the test jig down from now on.
(Yes, I am concerned about prop safety and the motors are not powered up most of the time. The test jig is for those rainy days when I want to power up the ESCs and not launch into the rafters).
Comments
Just lay out the waypoints to grid out your backyard and use it as a leaf blower. seem'd to do a good job of clearing the leaves!
Did you try use "Baltic birch" plywood? :-))
The props are 11x4.5 APC.
Since my jig extends to about the motor centers is should block about 40% of the lift as well. I calculated about 6kg of lift at max throttle, the quad is ~2.1 kg with batt in FPV config w/ goPro. So 40% of 6 kg lift is 3.6, minus about 2 kg of quad as tested leaves 1.5 kg of thrust, less than the 1.7kg of plywood. Obviously my guesstimate was off a little somewhere, but it was great fun to see it flying away with my test jig.
I'm still safe on the bench with my 13.8v 10A power supply, won't even hover. Need to add my current meter (Attopilot board from SparkFun) next. Cheers.
what props are those?
Put a brick on the board. It won't go anywhere.
With that size prop and motor, you should have know that it's capable of lifting 1.7 kg and more.