wongkamala bbc news in singapore. in singapore-— wongkamala bbc news in sina-aore. ~ as we heard from monica the plane maker comac has big ambitions. certification is the first main hurdle and it needs to be recognised by the faa and the european authorities in order to be recognised around the world by most authorities. they are not going to buy the air plane until that is done. and they need to convince these airlines that their plane can be operated reliably. it is still early days in operation. there are a few operating domestically in china but the data is not out there yet to validate the operational integrity of this aircraft. operating economics as well. they have to prove that this plane has similar operating economics to the a320 and 737. it is more than just offering a cheaper aircraft, it is also about having airlines be able to make money with the air plane at the end of the day. if they do not have a reliable and profitable air plane that cannot be considered seriously. but they have a significant and lar