Rotorcraft design has always been a challenging tradeoff among overall size, capabilities, complexity, and other factors based on available technology and customer requirements. Advancements in propulsion, energy systems and other technologies have enabled new vehicles and missions; complementary advances in analysis methods and tools enable exploration of these enhanced vehicles and the evolving mission design space. A system study was performed to better understand the interdependency between vehicle design and propulsion system capabilities versus hover / loiter requirements and range capability. Three representative vertical lift vehicles were developed to explore the tradeoff in capability between hover efficiency versus range and endurance capability. The vehicles were a single-main rotor helicopter, a tilt rotor, and a vertical take-off and landing (VTOL) aircraft. Vehicle capability was limited to two or three people (including pilot or crew) and maximum range within one hour of flight (100-200 miles, depending on vehicle). Two types of propulsion and energy storage systems were used in this study. First was traditional hydrocarbon-fueled cycles (such as Otto, diesel or gas turbine cycles). Second was an all-electric system using electric motors, power management and distribution, assuming batteries for energy storage, with the possibility of hydrocarbon-fueled range extenders. The high power requirements for hover significantly reduced mission radius capability. Loiter was less power intensive, resulting in about 1/2 the equivalent mission radius penalty. With so many design variables, the VTOL aircraft has the potential to perform well for a variety of missions. This vehicle is a good candidate for additional study; component model development is also required to adequately assess performance over the design space of interest.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Range and Endurance Tradeoffs on Personal Rotorcraft Design


    Contributors:

    Conference:

    American Helicopter Society Annual Forum and Technology Display ; 2016 ; West Palm Beach, FL, United States


    Publication date :

    2016-05-17


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English







    Range and Endurance Tradeoffs on Personal Rotorcraft Design

    Snyder, Christopher | British Library Conference Proceedings | 2016


    Endurance Optimisation of Battery-Powered Rotorcraft

    Abdilla, Analiza / Richards, Arthur / Burrow, Stephen | British Library Conference Proceedings | 2015