Advaidhya Tiwari
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Take just one exemple :
Give to your wife a golden jewel. its price is far higher than the sole gold. Why? because you have to pay for the designer work, for the guy who made the jewel, for the jeweller, VAT...
In a fighter case, there is a part of R&D in the price (in the Rafale case, 25% of the R&D was paid by Dassault, Thales, Snecma), the price of a single mono crystal blade of the engine is more than its weight in gold. A T/R module of the AESA radar probably also.
The skilled workers in a plane factory are not paid 4$ per hour even in Indi.
What is the weight of a software? The price per Kilo of Windows 10 is so huge.... => Weight is not the right mesure.
Bro, you can be sure that if it was possible to reduce by 10 the price, it was discover since 1950...
I am only saying that the operational cost of a plane can be made to be very low. So, by scaling it to higher numbers, per unit price can be reduced drastically.
The cost of salary in India for plane factory workers is indeed about $3-$10 per hour (Rs 35000-150000 per month) from the mechanical workers to the highly qualified and experienced workers. The govt salary of HAL etc are not too high. However, certain perks like job stability, unlimited medical insurance etc are provided by PSUs. So, the cost of workers is not too high, at least not in India.
The cost of R&D can be considered as government grant for research and simply written off. The development of software, hardware etc are one time job with regular refining. So, they too can be considered as one time developmental labour cost. Once developed, these cost no longer matter for production.