The performance of the fighting triplanes was soon overtaken by improved biplane fighters.

Only one was completed and flown, its makers preferring to develop a biplane fighter.

The formation was attacked on the return flight by two enemy scout planes and one biplane fighter.

The experiences in Spain would prove once and for all that the days of the biplane fighter were over.

It was one of the last biplane fighters in operational use, and also one of the best ever produced.

They were accompanied with six biplane fighters, anti-aircraft guns and about 100 tons of other supplies.

The Germans also quickly realized that the days of the biplane fighter were finished.

Initial flight testing revealed performance superior to most contemporary biplane fighters and led to an order of 100 aircraft being placed.

In addition, the P-16 remained the only two-seat biplane fighter to be produced for the army after 1918.

The M1928 was installed in some biplane fighters of the late 1920s and early 1930s.