
The all-metal Tubavion of Charles Ponche & Maurice Primard, the first 100% metal aeroplane built in France, went through a number of variations from 1911 onward, well into WWI.
Ponche & Pimard Tubavion Article

This photograph represents the 1912 version flown by Marcel Goffin at Reims or Amiens. The undercarriage and metal framework around the nacelle containing the engine and pilot are distinctive.

Development of the Tubavion halted when Ponche was killed in an aircraft accident on February 10, 1916.
