Hi there,
I have a cruise speed question for A350-900. I recently fly short legs for testing purpose and found that cuirse speed is a mystery for me. Yestday I did a LFPO-LFBO flight, CI=30, cuirse altitude=FL280. During the climb phase it went all normal, once the aircraft reach FL280 the magaged speed is reduced to 234 KIAS. This happens on every 'low cuirse level' flights. Can someone please tell me what did I do wrong?