air

Assalaam-u Alaikum Wa Rahmat-Allah(S).I wanted to ask regarding the prayers while on a journey.If one is travelling on the airoplane and the time for Zuhr, Asr, or Maghrib prayer approaches, then where and how (many Raka'ahs) is one to pray. Could you please specify the number of Raka'ahs needing to be prayed for the above prayers.Also if the ablution breaks while on the airoplane then how must one perform their ablution? Jazak-Allah(s) Khair.Wassalaam-u Aliakum.