SS-N-23 Not to be confused with SS-23 or SSN-23. NATO reporting name SS-N-23 Skiff can refer to: R-29RM Shtil Soviet missile (most commonly) R-29RMU Sineva Russian missile R-29 Vysota missile family Topics referred to by the same termThis disambiguation page lists articles associated with the same title formed as a letter–number combination.If an internal link led you here, you may wish to change the link to point directly to the intended article.