From serial number 543 on, however, D.520s used the 12Y49 engine that had a slightly higher rated performance than the 12Y45, although the German Armistice Commission explicitly prohibited replacing the original engines with the more powerful 12Y51 or 12Z engines.
But the German Armistice Commission explicitly prohibited production of the more powerful 12Y51 or 12Z engines. From serial number 543 on, however, D.520s used the 12Y49 engine that had a slightly higher rated altitude than the 12Y45.
From serial number 543 on, however, D.520s used the 12Y49 engine that had a slightly higher rated altitude than the 12Y45. But the German Armistice Commission explicitly prohibited production of the more powerful 12Y51 or 12Z engines.
From serial number 543 on, however, D.520s used the 12Y49 engine that had a slightly higher rated altitude than the 12Y45. But the German Armistice Commission explicitly prohibited production of the more powerful 12Y51 or 12Z engines.