Navarchos Miaoulis was an unprotected cruiser. She was 246 feet long with a beam of 36 feet and a mean draught of 14'5". The hull was made of iron and wood. Displacement was 1,800 ton. The engines produced 2,200 ihp and used 1 propeller for a speed of 15 knots.
In the early 1890s, armament was three Krupp 17 cm RK L/25 in a single mounts, and one 17 cm RK L/20. There were also two machine guns and four very light guns.
Navarchos Miaoulis was built by Forges et Chantiers de la Méditerranée in France. She was purchased by Greece as part of their program of naval expansion after the unsuccessful Cretan uprising of 1866. She was soon rendered operationally obsolete with the acquisition of newer, faster and larger ships such as the battleship and was made into a training ship. She served on active duty in this capacity until decommissioned in 1931.