And he's writing a web diary for CBBC Newsround.
He explains how hard it is reporting from inside a war
Diary entry 12:
It was a sad day today. They held a service in the hanger of Ark Royal for the men who died in yesterday's helicopter crash.
The ship's band played. One chair was left empty - for the band member who died. It was draped with the colours of 849 Squadron.
They were the group that lost the seven men when two Sea King helicopters crashed over the Gulf.
All too real
It was moving. Somehow, as the ship's chaplain pointed out, war doesn't seem very real here. We're floating in the ocean, miles away from the guns and the land war.
But the crash and the deaths brought it home to everyone that the ship is very much at war.
Later my cameraman went flying with some of the other crew members. One told him he'd lost friends, students, colleagues, a golfing partner.
But he had to get on with the job for now. Later he could grieve. In the ship there's a subdued atmosphere.