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World Earthquake Report for Monday, 10 August 2026
• Volcano earthquake report for Monday, 10 Aug 2026
• Moderate mag. 4.0 earthquake - Zangilan Rayon, 58 km southwest of Ganja, Ga...
• Moderate mag. 4.6 earthquake - 31 km northeast of Xunchang, Sichuan, China,...
• Moderate mag. 4.2 earthquake - New Zealand on Tuesday, Aug 11, 2026, at 06:...
• World Earthquake Report for August 2026
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#558436
Wed 29 Apr 2020 06:45:PM
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Joined: Feb 2001
Posts: 678,976
Launch Director
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OP
Launch Director
Joined: Feb 2001
Posts: 678,976 |
Abstract: Electric-motor powered aircraft possess the ability to operate with efficient energy delivery, but lack the operational range of internal combustion engine powered aircraft. This range limitation requires the use of high aspect ratio, thin-chord wings to minimize aerodynamic drag losses, which results in highly loaded composite spar structures. High aspect ratio wings are required to increase mission durations for a NASA-developed experimental multi-rotor electric powered aircraft denoted as ... Source: Structural Analysis and Performance-Based Validation of a Composite Wing Spar
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