Unmanned aerial heavy lift crane

grabcad

This text appears to describe an electric or gas turbine-powered aerial crane system designed by Pochari Technologies. Here's a summary of the key points: **Overview** * The system is designed for heavy lift applications, such as construction sites and worksites. * It is not certified for use over populated areas and should only be operated by trained personnel. **Powerplant Options** * Gas turbine-powered version: + 6x 800 shp dual centrifugal compressor dual power turbine reverse flow turboshaft + Turbine inlet temperature: 1560 °F + Combustor: Dual-fuel gaseous-liquid reverse flow + Compression ratio: 14:1 * Fully electric corded version: + 16x 300 hp axial flux electric motors arranged in a stack of four around an epicyclic gearbox horizontally + Three Aluminum alloy 1350 2000 MCM power cables (3100 lbs) carried by an intermediate lifter craft **Rotor System** * Main rotor hub manufactured from lay-up sheets of 300,000 psi T800 Toray aerospace-grade carbon fiber. * Main rotor grips and shaft made of titanium. * Gearbox housing is Aluminum 7075. * Bevel gear and epicyclic gears are made of 4340 steel. **Specifications** * Gross take-off weight: 33,000 lbs * Unit empty weight with 1-hour fuel: 10,500 lbs * Net lift capacity: 22,500 lbs * Maximum operating altitude without airspace permission: 400 ft * Maximum non-stop endurance: 24 hours. * Maximum travel distance over ocean or non-populated area: 480 miles, 770 km. **Purchase Price and Operating Cost** * Purchase price: + $990,000 for the turbine version + $800,000 for the electric version * Hourly operating cost: + $720/hr for the turbine version + $330/hr for the electric version Overall, this appears to be a heavy lift aerial crane system designed for industrial applications. The gas turbine-powered version is suitable for long working radii (up to 50 miles), while the fully electric corded version is limited to shorter radii (up to 500 feet).