The 1913 Hærens Flyvemaskinfabrikk F.F.1 Longhorn (or Langhorn) was a Maurice Farman MF.7 Longhorn copy.
Einar Sem-Jacobsen drew from memory after a Farman factory visit.
It was the first Norwegian aircraft, undertaking a trial run on 22 May 1913.
Haerens F.F.1 Longhorn
All Aero 