TBF the D-XXI was indeed - as the video mentioned - specified as a fighter for the Dutch East-Indies. As such the requirements asked for a rugged, simply to maintain fighter as there was little infrastructure there for complex maintenance. Choosing a fixed undercarriage contributed to that simplicity. It was never meant to face cutting-edge fighters like the Bf-109; it lacked the speed and the armament to do so.

That was an excellent video ! The vintage film clips really give the viewer good details of the various aircraft. Well done !

Nice to see interest in Dutch warplanes. Alas several mistakes. The D21 had two times two machineguns in the wings. It was of mixed construction. Because we Dutch needed to import engines we didn't have engines in the 1000 hp range. The D21 could compete Me 109e even though 200 hp less. The D23 tryed to solve the same issue. Yet with aircooled engines this never would have worked. The video with Tros in de corner are Harvard T6 trainers representing D21 for a film. 15:44 The G1 was akin the much later Mosquito made from woud. The prototype shown in the video had counter rotating props. Later used by Lockeed in the P38 with the nose gear of the D23.

I love those dutch designs..

Awesome!

The aircraft shown from 0:50 to 1:40 aren’t actual DXXI’s. They are modified North American Harvards used in the film Soldaat van Oranje to represent DXXI’s. Since last year there is an actual flying DXXI in the netherlands. Built from scratch by a team of volunteers at the airfield of Hoogeveen. kzfaq.info/get/bejne/o-B9YLpo3N6yeas.htmlsi=hkEa1Cf3-JB6QuK2