Derived from R-01 EMESE-B but steel-tube fuselage frames (2 to Egypt), 1937
Inter-Wars
Rubik R-05 Vöcsök (Grebe)
Derived from R-01 EMESE-B as R-07 prototype, 1937
Rubik R-04 Szittya II (Scythian II)
A gull-winged glider, 1937/38 1 built
Rubik R-03 Szittya I (Scythian I)
A gull-winged, single-seat glider, 1 built 1933
Rubik R-02 (MSrE M-19)
A 2-seat cabin monoplane tourer, 130 hp (95.5 kW) DH Gypsy Major, 1 built, 1936.
The M-19A designation applied in 1937 after a rebuild following a crash
Rubik R-01 (MSrE M-20)
A single-seat sailplane (better known as EMESE-B/-C), flown 1935.
Rubik Aero
Hungary
Ernő Rubik (Rubik Ernő in Hungarian usage) designed 28 gliders and 5 powered aircraft before his death in 1997. Only a few remained unbuilt projects. The most dramatic was the Rubik R-21 1.5-tonne military assault glider project.
Royal Thai Air Force Paribatra / Boripatra

The construction ot this indigenous two seat bomber began on 5 April 1927 and was named ‘Paribatra’ by His Majestry the King.
The Boripatra was the first aircraft designed and built by the Thais. Around 12 were built by the Aeronautical Service Workshops at Don Muang up until 1933 and were powered by a Bristol Jupiter, BMW, Curtiss D-12 or Pratt & Whitney Hornet engine.
Royal Naval Dockyard [Denmark]
Built seaplanes and flying-boats for the Danish Navy from 1914, comprising both original designs and license-built types such as Hawker Danecock (Dankok).
Royal Army Aircraft Factory [Sweden] S.21H.L
Reconnaissance biplane.