Abstract: A battery retention system is provided including a first retention system. The first retention system includes a first battery door having a first sliding coupling in a direction between the first battery door and a battery compartment. Also including a first locking mechanism configured to secure the first battery door in a position relative to the the battery compartment. A second retention system including a second battery door having a second sliding coupling in another direction between the second battery door and the battery compartment. Where a second locking mechanism is provided that secures the second battery door in a position relative to the battery compartment and where the second battery door slidably locking in place restricts the opening of the first battery door.

Abstract: The present invention provides a model vehicle having a motor and electronic speed control for driving and braking driven wheels, combined with a separate braking system for non-driven wheels. A controller and a method of operation are provided.

Abstract: A realistic simulation of the dynamic sounds of a full-sized vehicle are created on a moving R/C Scale Model. A mounting apparatus supports an audio exciter in a model vehicle without any modification to the exciter. A full range of volume of sound may be produced by the exciter without limiting the range of movement of the exciter as volume is increased or decreased. The apparatus may limit the mechanical excursion of the exciter to prevent physical damage to the exciter. The present invention also provides a method and apparatus for operating the audio exciter in a model vehicle.

Abstract: A realistic simulation of the dynamic sounds of a full-sized vehicle are created on a moving R/C Scale Model. A mounting apparatus supports an audio exciter in a model vehicle without any modification to the exciter. A full range of volume of sound may be produced by the exciter without limiting the range of movement of the exciter as volume is increased or decreased. The apparatus may limit the mechanical excursion of the exciter to prevent physical damage to the exciter. The present invention also provides a method and apparatus for operating the audio exciter in a model vehicle.

Abstract: Provided are methods, apparatus and articles for vehicles, such as or relating to a skid-plate shock absorber, body mounting, chassis assembly, component securing, engine mounting, slipper clutch, and transmission housing that may be employed in the assembly, operation, and control of vehicles.