Propeller-Wing Integration on the Parallel Electric-Gas Architecture with Synergistic Utilization Scheme (PEGASUS) Aircraft

Hydrogen-Powered Aviation—Design of a Hybrid-Electric Regional Aircraft for Entry into Service in 2040

“…However, the design iteration code does not include effects regarding disc loading, blown wing area and similar; hence, the results of Nathaniel [27] were used to define the power split to achieve a higher level of fidelity. They investigated the power distribution of an ATR 42-500 with WTP and conventional propellers.…”

“…The advantage of using WTP is the reduction of induced drag [25]. Considering the WTP concept individually, it promises an improvement of up to 50% less induced drag during climb and 25% less during cruise [26] regarding the wing and up to 15% less total drag on the aircraft level [27]. Secondary effects are the decrease of the wingtip vortex intensity through the WTP [26], which leads to a significant noise reduction [24] as well as to a reduced wing bending moment, relieving the wing by mounting a mass with a long lever arm on the wing tip.…”

FUTPRINT50 Academy – Aircraft Design Challenge 2022: Development of a hybrid-electric regional aircraft

“…Fuel cell technology combined with modern batteries provide a suitable platform for emission-free regional aviation in the near future. Propellers are the most efficient propulsion form and HAIQU uses four with an efficient power split of 50-50 [2]. The use of wing tip propellers reduces induced drag [3] and relieves the wing during flight.…”

Aero-Propulsive and Aero-Structural Design Integration of Turboprop Aircraft with Electric Wingtip-Mounted Propellers

“…Numerous integration studies have been performed on (variations of) wingtip-mounted propeller configurations. Some studies have mainly investigated the aerodynamic effects [7][8][9][10]. Some studied the effect on the aircraft weight by assuming aerodynamic benefits [11] or by ignoring mutual interference [12].…”