According Chief Designer of Kamov design bureau , Kamov in 1995-96 developed a preliminary design of future Z-10 under a contract with the China.
The Project 941 design was not based on any Soviet-era attack helicopter project and was strictly designed for China's unique requirements, Mikheev says. "They gave us the desired weight, we discussed preliminary performance parameters, then we signed a contract and we fulfilled the contract," he says.
After Kamov completed the design, the Russian design bureau verified the design via testing. Kamov then delivered the design to China and the Project 941 concept was accepted by that country's government for further development, he says. Kamov did not participate in any further developmental work on the WZ-10, he insists.
You left out the most important part of the interview. He also said that it is a preliminary study only and Kamov doesn't not involve with the detail design and all the components are Chinese. They also said they don't any other association with the project since then
Preliminary study is quite common in the industrial world . Why the Chinese contracted out to Kamov?Because they don't have the tool to design Helicopter Unlike common variety of structural software. The simulation software to design the helicopter is not available in open market.Without it you cannot design the parameter of the helicopter. It take a long time to design software.
So the only avenue open to the Chinese is to let Kamov do the preliminary study . It is a paper machine .
You cannot design software without actually do the detail design and testing. Because the software actually take account of field experience and not just theoretical formula.
By now the Chinese should have the software to design the helicopter and the next helicopter project won't required any assistance
