The speed is measured with video cameras and time period between passing them.
Some early videos of our squad. Now speeds are significantly increase with Cobra 2300kv motors, bullnose props and lightweight 4s 75c…"
"I see :) It cannot handle racing crashes. I have everything packed between two lower boards. Because i cracked almost everything. 140km/h crash will destroy everything you've installed to copter.
You have 250 quad but not 250 racing one."
"Can you share photo of your setup? Because it sounds almost unrealistic.
Lowest battery weight for 2200Mah is 200gr, ZMR250 frame 142gr, motors 65gr. So all other things must weight no more than 103gr. How? "
I fly APMs since APM1, all my fleet 3 copters and 1 plane built on APM platform.
As of racing quad - if you want to win every gram counts. That is why i built on CC3D platform. They simply do not need any GPS/Telemetry/OSD system at all.…"
"Overcomplicated for racequad. I've built two with naze32 and cc3d and didn't touch a thing. No configuration at all, only mechanical work. And they flew perfectly all the time.
When crashed hard i fix it with electric tape and fly :) "
CalBattery has designed a new li-ion battery with a silicon-graphene anode promising a major improvement in battery energy density. The design is based on what the company calls its "GEN3" silicon-graphene composite anode material for …