shiv wrote:What do we need to do in order to have the industrial capacity to make 10 aircraft a month?
Shiv-saar,
Kindly let a newbie (on BRF, not in life) chip in. The very first thing to do, which no one is discussing, is to have the design itself conducive to manufacture. In-process small changes in design identified by the manufacturing steps itself for the sole purpose of increasing yield is standard procedure for highly complex system manufacturing. For this the design process itself would be highly dynamic.
HAL is wrong in claiming 16/year as Max (in reality no one believes that number either, could be 5 to 6). A process that continuously improves yield to the target level of 10/month can be implemented. It's a technical problem and has a technical solution.
Hypothetical Example:
When the GE engine is attached to the frame for the very first time, they do a vibration test at various rpm. If the vibration test fails at any point, the engine is removed and is installed on another jet body (mix and match). Immediately a root cause need to be found, and in
next batch a small design change is implemented to overcome this issue, and there would be hundreds of such incremental improvements going on over a few years until you hit 10/month.
Often manufacturers advertise time to change engine for serviceability, this is arrived at after many years of manufacturing improvements. On a new design such as Tejas it could be a very elaborate process including wiring harness, plumbing, and what not, could be a week or more.
Supply-chain, babudom, nehruvian PSUs etc are philosophical. Think of the guys on the shop floor where the work gets done.
(hiding for cover and running to Benis Thread)