ðə nˌɪɪtˈɑːkəklˈæs kɹˈuːzɚz wɜː fˈɪɾᵻd wɪð sˈɪkstiːn nˈɪklɔːs bˈɔɪlɚz, ɐ ɡɹˈeɪt ɪmpɹˈuːvmənt ɔnðə lˌoʊkəmˈoʊɾɪv bˈɔɪlɚz ʌvðə sˈuːmə klˈæs.
The Niitaka-class cruisers were fitted with 16 Niclausse boilers, a great improvement on the locomotive boilers of the Suma class.