	Comment ( Ottos couplers for Diesels and Freight trains )
   	Coupling (
		Type ( Automatic )
		Spring (
			Stiffness ( 8e4N/m 4.5e6N/m )
			Damping ( 2e6N/m/s 2e6N/m/s )
			Break ( 5.1e7N 5.1e7N )
			r0 ( 0cm 2cm )
		)
		Velocity ( 0.2m/s )
	)
