A process of manufacturing a pitot tube assembly comprising: obtaining a cylindrical tube having a first axial portion that is a first material blank for an assembly inlet portion of the pitot tube assembly and a second axial portion that is a second material blank for a body portion of the pitot tube assembly; nesting the first axial portion of the cylindrical tube within a cylindrical graphite insert; nesting the cylindrical graphite insert within a cylindrical sheath; constraining axial motion of the cylindrical graphite insert, characterized by further comprising: performing laser scanning to the assembly inlet portion to create a weld joint between the sheath and the cylindrical tube; and performing additive manufacturing via laser direct metal deposition on top of the cylindrical sheath nested on top of the graphite insert at the assembly inlet portion; and wherein: constraining axial motion of the insert includes mounting an endcap to the assembly to axially engage the insert and the sheath; mounting the endcap includes positioning an annular rim portion of the endcap against the sheath and positioning a boss of the endcap within an axial cavity formed by nesting the insert within the sheath, and wherein the boss axially engages the insert; and positioning the boss within the cylindrical cavity includes providing a transition fit between the boss and the sheath. obtaining a cylindrical tube having a first axial portion that is a first material blank for an assembly inlet portion of the pitot tube assembly and a second axial portion that is a second material blank for a body portion of the pitot tube assembly; nesting the first axial portion of the cylindrical tube within a cylindrical graphite insert; nesting the cylindrical graphite insert within a cylindrical sheath; constraining axial motion of the cylindrical graphite insert, characterized by further comprising: performing laser scanning to the assembly inlet portion to create a weld joint between the sheath and the cylindrical tube; and performing additive manufacturing via laser direct metal deposition on top of the cylindrical sheath nested on top of the graphite insert at the assembly inlet portion; and wherein: constraining axial motion of the insert includes mounting an endcap to the assembly to axially engage the insert and the sheath; mounting the endcap includes positioning an annular rim portion of the endcap against the sheath and positioning a boss of the endcap within an axial cavity formed by nesting the insert within the sheath, and wherein the boss axially engages the insert; and positioning the boss within the cylindrical cavity includes providing a transition fit between the boss and the sheath. performing laser scanning to the assembly inlet portion to create a weld joint between the sheath and the cylindrical tube; and performing additive manufacturing via laser direct metal deposition on top of the cylindrical sheath nested on top of the graphite insert at the assembly inlet portion; and wherein: constraining axial motion of the insert includes mounting an endcap to the assembly to axially engage the insert and the sheath; mounting the endcap includes positioning an annular rim portion of the endcap against the sheath and positioning a boss of the endcap within an axial cavity formed by nesting the insert within the sheath, and wherein the boss axially engages the insert; and positioning the boss within the cylindrical cavity includes providing a transition fit between the boss and the sheath. constraining axial motion of the insert includes mounting an endcap to the assembly to axially engage the insert and the sheath; mounting the endcap includes positioning an annular rim portion of the endcap against the sheath and positioning a boss of the endcap within an axial cavity formed by nesting the insert within the sheath, and wherein the boss axially engages the insert; and positioning the boss within the cylindrical cavity includes providing a transition fit between the boss and the sheath.