A helicopter with a fuselage and a tail boom comprising a tail boom cone that is connected to a rear fuselage defined by the fuselage, comprising: a first airframe part that is constituted by one of the rear fuselage or the tail boom cone and has a longitudinal extension direction, an inside surface, and an outside surface; a second airframe part that is constituted by the other one of the rear fuselage or the tail boom cone and has an inside surface and an outside surface; and a shear connection, comprising: a first interface part; a shear bolt (17a, 17b); a second interface part that overlaps in the longitudinal extension direction at an overlap section with the first interface part and is rigidly and interchangeably connected with the first interface part; means (15a-d) that rigidly and non-interchangeably attach the first interface part to only the inside surface of the first airframe part and the second interface part to only one of the inside surface or the outside surface of the second airframe part, and wherein the shear bolt (17a, 17b) rigidly and interchangeably connects the second interface part with the first interface part at the overlap section and optionally additionally connects the second interface part with the first airframe part at the overlap section, thereby interchangeably connecting the first and second airframe parts. a first airframe part that is constituted by one of the rear fuselage or the tail boom cone and has a longitudinal extension direction, an inside surface, and an outside surface; a second airframe part that is constituted by the other one of the rear fuselage or the tail boom cone and has an inside surface and an outside surface; and a shear connection, comprising: a first interface part; a shear bolt (17a, 17b); a second interface part that overlaps in the longitudinal extension direction at an overlap section with the first interface part and is rigidly and interchangeably connected with the first interface part; means (15a-d) that rigidly and non-interchangeably attach the first interface part to only the inside surface of the first airframe part and the second interface part to only one of the inside surface or the outside surface of the second airframe part, and wherein the shear bolt (17a, 17b) rigidly and interchangeably connects the second interface part with the first interface part at the overlap section and optionally additionally connects the second interface part with the first airframe part at the overlap section, thereby interchangeably connecting the first and second airframe parts. a first interface part; a shear bolt (17a, 17b); a second interface part that overlaps in the longitudinal extension direction at an overlap section with the first interface part and is rigidly and interchangeably connected with the first interface part; means (15a-d) that rigidly and non-interchangeably attach the first interface part to only the inside surface of the first airframe part and the second interface part to only one of the inside surface or the outside surface of the second airframe part, and wherein the shear bolt (17a, 17b) rigidly and interchangeably connects the second interface part with the first interface part at the overlap section and optionally additionally connects the second interface part with the first airframe part at the overlap section, thereby interchangeably connecting the first and second airframe parts.