Conceptual configuration only. It is not flight validated; dimensions and performance are not finalized and remain subject to aerodynamic, structural, and propulsion testing.
Why place both motors on the centerline
A front tractor and rear pusher create thrust close to the longitudinal centerline. If one motor fails, the yawing moment can be smaller than with widely spaced wing motors. This may simplify immediate controllability, but it does not guarantee safe continued flight: total available thrust, pitch moments, propeller drag, and electrical failure commonality still matter.
Integration penalties
- Rear propeller inflow can be disturbed by the fuselage and forward propeller wake.
- Rear motor and controller cooling are harder inside the fuselage wake.
- Tail geometry must avoid the rear propeller disk and retain stiffness.
- Landing clearance and safe ground handling become more demanding.
- Two powertrains increase wiring, controls, monitoring, and mass.
- A shared battery or power bus may defeat the intended redundancy.
Required evidence
Selection requires propulsion bench testing, measured static and dynamic thrust, thermal testing, inflow analysis, vibration assessment, structural load cases around both motor mounts, and simulation of each motor-failure condition. A simpler single-motor aircraft remains the reference case until this evidence exists.
Challenge the assumptions.
If a claim is unsupported, incomplete, misleading, or technically incorrect, identify it. Agreement is not required. Well-supported criticism is valuable.