This aircraft entered service July 1918, but was disappointing for a fighter aircraft. It was mainly used as a trainer and withdrawn from use in 1920.

Prototype of the Spijker V.1Fighter at Soesterberg. On the cowling the  makrings 'Spijker" and on the rudder the factory marking "Trompenburg" (Amsterdam).
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Trompenburg (Spijker) V.1. Evaluation testss at Ede, 23 mei 1917. Pilot elt. F.A. van Heijst.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Trompenburg (Spijker) V.1 at Soesterberg. First version autumn 1916.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Trompenburg (Spijker) V.1. Test at air field Ede, May 23 1917. Pilot  elt. F.A.van Heijst.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]