The Tromp class were to be destroyer flotilla flagships and to make the Dutch East Indies fleet stronger. They were authorized to be built in 1931 / 1935.
To help make the Tromp class fast the armor was designed to be thinner.
As there was no catapult the Fokker C.VIX floatplane had to be lowered into the water to take off.
The forward boiler room powered the starboard shaft and the aft boiler room powered the port shaft.