https://youtu.be/t_MMa5gueRM
If you watch the grass, it's just after winter here in UK and I was taking off across the ridges. There was a breeze and that helps, but even in flat calm it took off this strip in 40-50m. Light is everything, none of these pointless heavy bubble traps, aluminium brackets for valves. Just a Powerbox Digi switch, Rx and iGyro 3e
Dave