CFD-Based Design and Feasibility Analysis of a Combustion-Engine Powered Hover Bike

Personal aerial mobility has emerged as a promising solution to urban congestion and emergency transport challenges. Hover bikes, also known as flying motorcycles, represent a compact vertical take-off and landing (VTOL) platform capable of agile maneuvering. While electric propulsion dominates current research, combustion engines offer higher energy density and longer endurance. This paper presents a comprehensive theoretical and CFD-based study on a combustion-engine powered hover bike employing quad ducted-fan propulsion. The research investigates thrust generation, aerodynamic efficiency, pressure and velocity distribution, and hover feasibility. Simulations were conducted using ANSYS Fluent under steady-state conditions. Results demonstrate that ducted-fan propulsion significantly enhances thrust efficiency and hover stability. Challenges including vibration, emissions, and noise are also discussed. CFD results indicate average thrust of 480–520 N per fan, producing a total lift sufficient for hover The study concludes that combustion-powered hover bikes are technically viable for specialized applications.