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11h ago

IIT’s iRonCub3 Humanoid Robot Achieves First Jet-Powered Hover

It uses four jet engines plus neural network-based aerodynamics to maintain stable lift 50 cm off the ground.

Image
The iRonCub3 humanoid robot, equipped with jet engines on its arms and back, hovers roughly 50 cm off the ground during a flight test at the Italian Institute of Technology. Suspended by safety tethers, the robot maintains a stable, upright posture as it demonstrates controlled lift using jet propulsion.

Overview

  • The first controlled flight tests in June 2025 saw iRonCub3 hover about 50 cm above the ground at IIT’s dedicated testing area in Genoa.
  • Two engines mounted on its arms and two on its back provide the thrust needed for stable hovering.
  • Its control system relies on neural networks trained on both simulated and experimental data to estimate aerodynamic forces in real time.
  • A titanium spine and heat-resistant covers protect the robot from engine exhaust temperatures nearing 800 °C during flight.
  • Expanded trials at Genoa Airport are planned in collaboration with Aeroporto di Genova to evaluate its performance for search-and-rescue and hazardous-environment inspections.