here as an example how to solve it: with the impress 3 without motor I have a sink rate of 1 - 1.1 with the frame and propeller is the rate of descent at 1.1 to 1.2 in a standard paramotor usually at 1.4 - 1.6. the rechargeable battery (8.5 kg) is exactly where else the water ballast is, therefore the zero balance remains unchanged. The motor is near on the back. the 5.5 kg for the drive incl. Regulator, angle adjustment and housing can not be felt by thermal flying. the propeller weighs 360 grams. As a rescue system, a 135 kg parachute is installed laterally and a second system up to 140 kg in front of the abdomen in the competition pod. everything weighs 22.5 kg. Normally you do not need 2 rescue systems. I do it anyway because I fly with it in very hard thermic. With only one rescue system and a new lightweight pod harness, 18kg is realistic. The maximum height with me as 85 kg pilot is about 800 meters above ground. the level flight without thermals is about 20- 25 minutes.
