Efficient Lightweight Mechanical Drivetrain for BMW1000RR VTOL Conversion

Efficient Lightweight Mechanical Drivetrain for a prototype solo aircraft concept (see image attached) Project is to provide 3d drawings, and recommend a selection of hardware such sprockets gearing, axles and bearings , 90 deg bevel gearboxes, spindles, propellers etc. with critical regards to minimize weight and for minimal loss of power through friction drag. Please bear in mind that left and right hand propellers should be counter rotating. I believe all drive can be taken from the motorcycle engine drive sprocket by chain driving a sprocket on a rear axle without wheel with another sprocket on this same axle with chain driving another sprocket an axle shaft mounted overhead horizontally sideways to direction of travel and connected to an opposing 90deg bevel gearbox at each end of the shaft whereby 2 counter rotating horizontal double v belt pully assemblies might suffice to provide power for flight to front and rear propeller spindles on each side with V belt pulleys and idlers arranged. As an initial concern, the rear wheel will be removed to avoid disc brake becoming engaged and stalling the drive train to be replaced with a bearing encased rear axle shaft where power is divert vertically with ideal sprocket ratios for appropriate thrust at propeller for flight. It is envisioned that gross weight will finish at 550kg with rider 100kg,160Hp motorcycle with fuel 350kg and aircraft frame say 100kg therefore some research may be required to calculate prop size and speed for solving the problems of gearing to lift 150kg per prop. Further to this Drivetrain Design Project and its mathematical challenges, guidance on airframe engineering will also be required along with flight controls and related electronics.