Thus, a thick parachutist falls at a greater speed. That is why, when disembarking the first goes the radar - he has a 50-kilogram battery on his back.

Not on the back, fucking. On his back is a suitcase with a parachute.
He has a box in his hands on a 15-meter fault. After unlocking, this box is thrown naked, the box lands first and the last 15 meters is overcome by the radist in the eased version.