animation - ships and planes

All I had to do is move the ship across from Japan to about 300miles north of Pearl Harbour  and make it look like the planes have taken off from the ship so i made the planes really small and placed them where the ship was going to stop.  i first tried to animate the planes without grouping it and it didnt work.

http://www.youtube.com/watch?v=nRyFJ9kK1ko