Complex sentence: In 1986, Peru ordered 20 Tucanos to replace the Cessna T-37 Tweet, deliveries to the Fuerza Aérea del Perú (FAP) Peruvian Air Force commenced in April 1987 at the rate of two units per month the last delivery took place in November 1987.
Split into simpler sentences: In 1986, Peru ordered 20 Tucanos to replace the Cessna T-37 Tweet. Deliveries to the Fuerza Aérea del Perú (FAP) Peruvian Air Force commenced in April 1987 at the rate of two units per month; the last delivery took place in November 1987.