DARPA Lift Challenge 1
Sherman Aeronautics built a version of RotorWings for the DARPA Lift Challenge to attempt a 4:1 payload to weight ratio. Over the course of the competition the vehicle demonstrated a sustained hover ratio of 2.98:1.
Vehicle Specifications
| Powertrain | Electric |
|---|---|
| Rotor Diameter | 40 ft |
| RotorWing Wingspan | 10 ft |
| RotorWing Weight | 15–18 lb |
| Total System Weight | 32–38 lb |
| Max Rotor Speed | 1.2 RPM |
Sherman Aeronautics demonstrated the viability of tethered vehicles as alternatives to existing rotorcraft systems. The era of tethered aerial vehicles is just beginning, and the ceiling is extremely high. With the conclusion of the DARPA Lift Challenge, Sherman Aeronautics is actively seeking funding opportunities to commercialize the RotorWing system for heavy lift, or surveillance missions.
DARPA Lift Challenge 2028
Sherman Aeronautics plans to attend DLC-2 with the next generation of RotorWings. If you are interested in collaborating with us, please send us an email!
shermanaeronautics@gmail.com