[3][a] The ships were initially propelled by two Frichs 7AX diesel engines turning two shafts creating 3,100 kilowatts (4,200 bhp).

[3][5][b] This gave them a speed of 14 knots (26 km/h; 16 mph)[4][3] They were later replaced with two MTU diesel engines, providing 1,600 kW (2,100 hp) of power in total.

To fulfill this objective, the Danish Navy placed an emphasis on the acquisition of torpedo boats, submarines, minelayers and minesweepers.

The purchase of the cable-minelayers was approved in the 1973 defence bill[9] as a replacement for the World War II-era Lougen-class minelayers for the Royal Danish Navy.

[5] Lindormen served as a command and support ship in NATO's Standing Naval Force Channel (STANVAFORCHAN) in 1989 and again in 1990.

[3] Wambola was held in reserve until it replaced Tasuja in Estonian Navy service in 2016.