Nozzle sector

A nozzle sector for a sectorized annular stator of a gas turbine having a rotational axis, the nozzle sector comprising:

• an inner platform;
• an outer platform;
• and
• an airfoil disposed between the inner platform and the outer platform,
• wherein the inner platform and the outer platform are concentric with the rotational axis of the gas turbine,
• wherein each of the inner platform and the outer platform has a platform leading edge, a platform trailing edge, a first platform sidewall edge, and a second platform sidewall edge,
• wherein each of the first platform sidewall edge and the second platform sidewall edge extends from the platform leading edge to the platform trailing edge of the respective platform,
• wherein the first platform sidewall edge and the second platform sidewall edge are complementary to each other,
• wherein each of the first platform sidewall edge and the second platform sidewall edge has a leading portion forming a first angle with respect to the platform leading edge, a trailing portion forming a second angle with respect to the platform trailing edge, and an intermediate portion that extends between the leading portion and the trailing portion,
• wherein the intermediate portion is tilted with respect to the leading portion of by a third angle, and
• wherein the first angle is between 70 degrees and 110 degrees,
• wherein the second angle is between 70 degrees and 110 degrees,
• wherein the third angle is in a range of plus or minus 20 degrees to of a stagger angle A of the airfoil, and
• wherein the second platform sidewall edge of the outer platform is circumferentially offset from the second platform sidewall edge of the inner platform.