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Mars helicopter blades redesigned by NASA could stretch single flights from 0.7 km to 18.7 km

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The next Mars helicopter could fly far longer distances thanks to a new blade shape being tested by NASA, the agency said on 20 October 2026. Simulations show the redesigned blades could let future helicopters cover up to 18.7 kilometres in one uninterrupted flight, compared with 0.7 km for Ingenuity, while carrying science instruments.

Mars helicopter: A close-up view of a cross-section of the Ingenuity rotor blade, also called an airfoil
A close-up view of a cross-section of the Ingenuity rotor blade, also called an airfoil Photo: NASA (public domain).

From Ingenuity to SkyFall: the Mars helicopter family

NASA’s Ingenuity helicopter made history as the first powered aircraft to fly on another planet. The SkyFall mission, scheduled to launch in 2028, builds on that legacy with a trio of helicopters bound for Mars. Both use a blade designed for Mars’ thin atmosphere, with a curved edge that resembles, but differs from, blades used on Earth. Researchers are now exploring thinner and sharper designs that could let missions after SkyFall greatly extend their single-flight range. A team at NASA’s Ames Research Center in California’s Silicon Valley is working with Imperial College London and Nagoya University in Japan to test a new blade cross-section, or airfoil, that promises a big boost in aerodynamic performance.

Key Facts

  • Ingenuity single-flight range: 0.7 km
  • Possible range with new blades: up to 18.7 km
  • New airfoil: roamx-0201 (NASA Ames, Imperial College London, Nagoya University)
  • Next mission: SkyFall, three helicopters, launch planned for 2028
  • Paper published: 22 September 2026 (AIAA journal)

How the roamx-0201 airfoil works

The new airfoil, called roamx-0201, was designed with advanced simulations and algorithms tuned to Mars conditions, which pointed to a thinner, asymmetrical shape. Researchers used high-fidelity simulation tools to compare its performance with Ingenuity’s. Wind tunnel tests showed the optimised design improved performance and recovered better in risky flight conditions. It works well partly because it can run longer at higher speeds before hitting “drag divergence”, the sudden loss of performance as rotors approach the speed of sound, which is lower on Mars than on Earth. It also uses turbulence differently: the airfoil deliberately disturbs the thin “boundary layer” of air at its leading edge, which, counterintuitively, helps pull the blade upward and lift the rotorcraft more effectively than earlier designs. The findings were published on 22 September in a journal of the American Institute of Aeronautics and Astronautics.

Better stall behaviour, but not ready for Mars yet

Stall, when performance drops sharply after a change in the angle of airflow, is another challenge for rotorcraft. Ingenuity’s blades lost performance steeply at stall, but under the conditions studied, the roamx-0201 design showed much better stall behaviour, which means future helicopters could operate safely at a wider range of flight angles. NASA stressed that the technology is not yet ready for Mars. The tests are helping engineers understand and resolve gaps between computer predictions and real-world results. Work across the agency aims to build more efficient Mars helicopters that can fly farther, carry more payload and open up new science missions.

Why It Matters: Longer flights would turn Mars helicopters from short-hop scouts into real survey tools that can cover ground rovers would need months to cross.

Also on TrendDesh: Curiosity rover photographs Martian dawn over wind-carved yardang cliffs on Mount Sharp · CHAPEA Mission 2 crew marks one year inside NASA's simulated Mars habitat, exit set for 31 October

Source: NASA, 20 Oct 2026 · NASA: Ingenuity Mars Helicopter

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