Step 1: Enter pilot data to determine theoretical energy to goal.

Weight Glide (LD) Speed Altitude Time
Pilot and wing
Theoretical energy kwh

Step 2: Adjust required energy based on component efficiency.

Prop Motor Batteries All else 1-(1/glide)
Efficiency reduction (%)
System efficiency %
Adjusted energy kwh
Power rate based on fpm climb kw battery draw

Step 3: At the calculated power draw, determine flight time based on battery choice.

System volts mAh Capacity Number
Available watts watts
Projected flight time minutes