Hybrid Drives. Combining speed and acceleration

[Proginoskes]

The effect of attaching a rocket to a car or boat or propeller plane with a 'waved-in-place propulsion system should be approximately equivalent to attaching a rocket to an unwaved car or boat or propeller plane, which I think would be a massive boost in acceleration for as long as the rocket burns, then a rapid deceleration to normal maximum speed as soon as the rocket cuts out (and probably severe damage to the normal drive train), which negates the inertial travel benefit of pure reaction drives.