ðə skˈoːɹpiəŋklˈæs ʃˈɪps hæd tˈuː hˌɔːɹɪzˈɔntəl dᵻɹˈɛkt ˈæktɪŋ stˈiːm ˈɛndʒɪnz, bˈɪlt baɪ lˈɛɹdz, dɹˈaɪvɪŋ ɐ sˈɪŋɡəl θɹˈiːblˈeɪdᵻd,  pɹəpˈɛlɚ.
The Scorpion-class ships had two horizontal direct acting steam engines, built by Lairds, driving a single three-bladed,  propeller.