The Engineering Division VCP-1

The Engineering Division PW-1, designed by Verville and Clark.

The Euler D II was a more powerful derivative of the D I, but, owing to tardy delivery, shared the earlier fighter's fate in being relegated to the fighter training role.

The Engineering Division TP-1 two-seat fighter characterised by an upper wing with a shorter span than the lower.

The Euler "Gelber Hund" of 1915 which featured a fixed forward-firing machine gun in the extreme nose of the fuselage pod.

The initial form of the Euler two-seat fighter of 1915 intended primarily for anti-airship and escort missions.

The final form of the Euler two-seat fighter of 1915 intended primarily for anti-airship and escort missions.

The first Euler single-seat fighter triplane was designed by Julius Hromadnik and was under test in the summer of 1917.