Solar Impulse 2 flight to Abu Dhabi delayed

Dubai - The flight was initially delayed due to bad weather conditions but then the pilot developed a stomach illness.

Solar Impulse 2, Si2, the solar-powered plane attempting to become the first aircraft in the world to circumnavigate the globe without using a drop of fossil fuel has delayed its trip to Abu Dhabi.
There is still no word as yet on when the solar-powered plane will begin it's journey from Cairo.
It touched down in Egypt on Wednesday and the plane was received at Cairo International Airport by Egypt's Minister of Civil Aviation, Sherif Fathy, and the UAE Ambassador to Egypt, Juma Mubarak Al Junaibi.
Bertrand Piccard, the co-founder and co-pilot of Si-2 who has to fly the plane, tweeted about the delay saying he prefers to postpone the flight until he feels better and until they can identify another good weather window.
The flight was initially delayed due to bad weather conditions but then the pilot developed a stomach illness.
According to their official blog, takeoff conditions are tricky in Cairo due to the wind direction at takeoff.
The statement read, "We will have to takeoff on a taxiway, which requires special approval from the air traffic control towers. Our takeoff window is only one and a half hours long before low stratus clouds settle over the airport and make it difficult to see. These low morning clouds usually set in at sunrise in these regions. The pilots, Bertrand and André, together with the Mission Control Center will undergo a final evaluation of takeoff on the runway."
Taking to social media, Piccard tweeted saying, "I'm sick. Stomach upset. I prefer to postpone the take-off. I cannot go flying for 48 hours in that shape. Sorry."

I'm sick. Stomach upset. I prefer to postpone the take-off @solarimpulse. I cannot go flying for 48 hours in that shape. Sorry
- Bertrand PICCARD (@bertrandpiccard) July 16, 2016