"rotor engine"

#13038947

29 November 2025

Four large white wind turbines stand on a ridge above the forested and residential shoreline of Lake Starnberg in Starnberg, Germany, on November 29, 2025, symbolizing green energy production against a colorful sunset sky. In the foreground, a seagull sits atop a wooden piling in the calm water of the lake.

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#12930539

31 October 2025

Close up at the rotor engine and the propellers of the Archer Midnight electric vertical takeoff and landing aircraft eVTOL with the futuristic design as displayed inside the exhibition hall during the Paris Air Show 2025 at Le Bourget Airport. The Archer Midnight with registration tail number N302AX, developed by California-based Archer Aviation, is designed as a piloted and four passenger air taxi aimed at reducing urban congestion through sustainable electric air mobility. The Midnight aircraft’s first test flight outside the United States took place in July 2025 at Al Bateen Executive Airport in Abu Dhabi, where it was evaluated under local environmental conditions as part of preparations for regional certification aiming to the usage of affordable air taxi transportation. Paris Air Show, one of the oldest and largest in the world aerospace events, gathers global industry leaders to showcase the latest advancements in aviation, defense, and space technology. Le Bourget, France on June 22, 2025

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#12788488

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: An Italian Navy McDonnell Douglas AV-8B Harrier II, marked “A.S.G. Duca Cavo Dragone” in honor of Admiral Giuseppe Cavo Dragone, one of the first Harrier AV-8B pilots with over 2,500 flight hours, is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788476

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: A Czech Air Force Bell AH-1Z Viper attack helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788477

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: A Czech Air Force Bell AH-1Z Viper attack helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788479

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: A Czech Air Force Bell UH-1 Y Venom helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788481

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: A Czech Air Force Bell UH-1 Y Venom helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788483

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: Details of a Czech Air Force Bell UH-1 Y Venom helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788484

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: Details of a Czech Air Force Bell UH-1 Y Venom helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12788472

23 September 2025

MOSNOV, CZECH REPUBLIC — SEPTEMBER 21: A Czech Air Force Bell UH-1 Y Venom helicopter is displayed during the second day of NATO Days in Ostrava and Czech Air Force Days at Mosnov Airport, Czech Republic, on September 21, 2025. The show, Europe’s largest security and military exhibition held at Leos Janacek Airport, is celebrating its 25th edition with around 17 participating countries.

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#12683501

28 August 2025

Two heavy-duty multi-rotor unmanned aerial vehicles carry out tower material transportation operations in the mountainous area of Yuexi County, Anqing City, Anhui Province, China, on August 28, 2025.

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#12683502

28 August 2025

Two heavy-duty multi-rotor unmanned aerial vehicles carry out tower material transportation operations in the mountainous area of Yuexi County, Anqing City, Anhui Province, China, on August 28, 2025.

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#12683504

28 August 2025

Two heavy-duty multi-rotor unmanned aerial vehicles carry out tower material transportation operations in the mountainous area of Yuexi County, Anqing City, Anhui Province, China, on August 28, 2025.

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#12318674

30 April 2025

A Smartflower compact photovoltaic system is installed on the grounds of the Technical University of Munich (TUM), Campus Straubing for Biotechnology and Sustainability, in Straubing, Lower Bavaria, Bavaria, Germany, on April 26, 2025. The Smartflower is a solar energy device that unfolds like a flower to track the sun for optimal solar power generation.

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#12318675

30 April 2025

A Smartflower compact photovoltaic system is installed on the grounds of the Technical University of Munich (TUM), Campus Straubing for Biotechnology and Sustainability, in Straubing, Lower Bavaria, Bavaria, Germany, on April 26, 2025. The Smartflower is a solar energy device that unfolds like a flower to track the sun for optimal solar power generation.

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#12318676

30 April 2025

A Smartflower compact photovoltaic system is installed on the grounds of the Technical University of Munich (TUM), Campus Straubing for Biotechnology and Sustainability, in Straubing, Lower Bavaria, Bavaria, Germany, on April 26, 2025. The Smartflower is a solar energy device that unfolds like a flower to track the sun for optimal solar power generation.

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