Papa Class Submarine (Severodvinsk)

no no never: it's either a Delta (I or II) or Yankee already without missile section!

the ship with open missile hatches is Delta II

The shorter one is KS-411 (ex Orenburg) a Yankee Stretch - already without the middle section. The middle section is intended to be used with KS-64 (ex Delta IV) which shall replace earlier Project 09774 Boats to support PALTUS and Uniform Type Special submarines -
see http://pilot.strizhi.info/wp-content/uploads/2007/03/IMG_8382_sm.jpg