A few people might have seen the 7" long range drone I’ve posted here a few times before. It’s always intended to be a survey platform eventually, and originally, I was going to strap a Sony A7 to the bottom of it. However I got carried away and won a 360-degree LiDAR off eBay which is coming over from the US, one of these to be specific:
It’s going to be a fairly long journey to get it all working so thought I’d actually remember to start a thread at the beginning this time.
Building a mounting platform and integrating it will be about 1 kg in extra weight, thankfully it’s very low power (8W) so that’s a negligible addition.
The current flight platform is:
Frame - iFlight XL8 (?)
Motors - Tmotor F90
Props - Dalprop 7056
FC - Matek H743 Slim
FCS - Ardupilot
ESC - Hobbywing 60A
RC - TBS Diversity Nano
VTX - Tmotor race VTX
FPV Cam - Runcam Splitcam 2
So to be prepared, I did the sensible thing and strapped a 1 kg lead weight to the bottom of it and flew it around the bedroom:
It was never a particularly quiet quad, but boy is it loud in an enclosed space with the payload. I did record the flight but the rooms a bit of a mess at the moment so apologies.
The prop wash is massive which drives a lot of the ‘bouncing’ behaviour you see as it messes with the barometer. It’s a problem I’ve seen in the past, and it clears up about a metre above floor so not a big issue in the real world. Hover is about 40% throttle on the controller, so plenty of headroom seriously impressed by the performance of the motors, they are barely warm to the touch.
It draws about 15A from a 6S to hover (it’s about 6A without the payload) so flight time will be limited, probably about 10 mins, but at 300,000 data points a second it doesn’t particularly matter.
I’m using a 4500 mah 6S LiHV battery for now, but I am considering some high discharge 27100 batteries like the Samsung 50S’ cells instead, which would be slightly lighter, and an awful lot cheaper (£30 per 6S pack vs £60ish)