Ko e mohuku ko e ʻakau vaoa taʻefiemaʻu ʻaupito ia. ʻOku ui ko e ʻakau kovi ʻoku mafola mo tupu vao ʻe he palemia ʻi 1927 (lao fakalahi 1988, vahe 128) maʻa Haʻapai mo Vavaʻu, pea ʻi 1929 maʻa Niuatoputapu mo Tafahi.