The first Sopwith 1½ Strutter, with RNAS serial 9396 "A2" landed August 25, 1916 near Schoondijke and was interned as LA33.
A second aircraft also from the RNAS, with serial 9420, made an emergency landing on September 17, 1916 near Westkapelle and was interned as LA38.

A third examples, again from the RNAS with serial 9376 was grounded near Oostburg and entered Dutch service as LA42. Noteworthy is that this was the first production Strutter.

A fourth example with RNAS serial N5154 "Firefly" landed May 12, 1917 near Cadzand. This aircraft was equipped with a radio-receiver and transmitter. It was interned as LA34 [this serial was previously used by the Fokker A1, which was withdrawn from use].

The fifth and last 1½ Strutter was a French aircraft, built by Hanriot. This aircraft with serial 115, landed on July 7, 1917 near Beringen and entered service as LA45. It was a single seat plane. It had a Swan on the fuselage and inscription "Je t'sens bien".

Sopwith Hanriot I B.1 (1½Strutter) LA45, rechts voor. Ex 115 Armée de l' Air, december 1917 reg. S701. Achter het toestel staat een Fokker D.III met oranje bollen.
Sopwith Hanriot I B.1 (1½Strutter) LA45.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith Hanriot I B.1 (1½Strutter) LA45. Ex 115 Armée de l' Air, december 1917. Op de achtergrond een Albatros C.X.
Sopwith-Hanriot I B.1 (1½ Strutter) LA45.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith Hanriot I B.1 (1½ Strutter) LA45. Detail of the cockpit, machine gun on the upper wings and (opened) inspection panels in the fuselage.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith 1½ Strutter van de LVA Soesterberg, op bezoek MVK de Kooy 1919. Was een geïnterneerd vliegtuig
Sopwith 1½ Strutter visiting Naval air station De Kooy in 1919.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith 1½ Strutter van de LVA Soesterberg, op bezoek MVK de Kooy 1919. Was een geïnterneerd vliegtuig
Sopwith 1½ Strutter, S24 from the LVA Soesterberg on loan at naval air station De Kooy in 1919.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith 1½Strutter met registratienummer LA33. Registratienummer RNAS was 9396. Mitrailleur op de bovenvleugel, meteoinstrumenten rechts onder de bovenvleugel.
Sopwith 1½Strutter, serial LA33, ex RNAS 9396. Note he machine-gun mounted on the wing and the meteorological instruments at the right of the upper wing.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith 1½Strutter met registratienummer LA33. Registratienummer RNAS was 9396. Mitrailleur op de bovenvleugel, meteoinstrumenten rechts onder de bovenvleugel.
Sopwith 1½Strutter serial LA33. 
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Sopwith 1½Strutter LA42. Ex 9376 van de RNAS, in december 1917 met registratie S412. Rechts een Sopwith Hanriot LA45.
Sopwith 1½Strutter LA42. Ex RNAS 9376 December 1917, now registered S412. At the right the Sopwith Hanriot LA45.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]