At the beginning of 2012, the Solar Impulse team was about 90 strong, including 30 engineers, 25 technicians and 22 mission controllers, supported financially and technologically by over a hundred partners and advisers. And yet the team could have been limited to just twenty people.
To achieve that, an aircraft manufacturer would have had to accept being a sub-contractor responsible for building the solar airplane after completion of the feasibility study. But none of them believed it to be possible, so it was necessary in record time to create a production unit and assemble a technical team. The two founders shared the work-load, with André taking responsibility for the team and the construction work, whilst Bertrand travelled the world promoting the project and searching for partners.