Well this is definitely
muzukashii. I am going to try to be very careful what I say here. I also will not be posting anymore due to several reasons. I enjoyed reading other's post and the some very intelligent and thoughtful contributions.
There are things I know for sure and some things I think I know.
IMO, this move is a good thing. This was not a last minute decision. I have respect for both Arai-san and Hasegawa-san. Hasegawa-san is very capable. Arai-san and Hasegawa-san were both considered to head the F1 program but it was ultimately decided to be Arai-san by the former president. I would consider latest move a resignation and not a firing.
It is my understanding that "Mark 1 engines version a and b will be tested now." 'Mark 2 engines version a and b" will be tested at the next session. Primary differences are with the ICE and turbine and compressor combinations.
There were three teams working to come up with different solutions for 2016. I think the word "rogue" is too strong. Nothing was secret and one team did have more "senior" engineers and staff. This was the geriatric gang.
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This move is not a surprise. This transition was planned in advance and McLaren was well aware in advance. Hasegawa-san and Arai-san have very different personalities. I know Hasegawa-san much better than Arai-san and he should thrive in this situation.
I will still visit this forum and please feel free to continue to PM me. I will try and answer promptly but will be away from my PC quite a bit in the future. I enjoy answering your questions from Honda's past working experiences to what turbo you should run for your Civic street car...
McLaren Honda, GAMBARE!!!!!