The ship's name is spelled as Clas Uggla in some English-language sources.

The ship displaced about 800 long tons (810 t) at normal load.

The steam engines were rated at 4,500 indicated horsepower (3,400 kW) which gave her a speed of 20 knots (37 km/h; 23 mph).

Claes Uggla carried up to 100 long tons (100 t) of coal and had a complement of 99 officers and ratings.

This article about a specific military ship or boat of Sweden is a stub.