2 cars at an airport are pulling a big airplane with two steel cables. Car 1 pulls with force 51000N at 30° angle. Car 2 pulls with force 68000N at 60° angle, both pull in forward direction. find fnet and direction

Heres an image i made of problem : http://img16.imageshack.us/img16/8035/planek.png

now I tried doing:

Well we need to finding F1x F1y and F2x F2y.

I found Fx already by doing:

F1x=51000cos30

F1x=44167.3N

F2x=68000cos60

F2x=34000N

So Fx= F1x+f2x

Fx=78167.3 N

But I dont know how to find Fy and the direction, but I know I need fy first before I find the direction. I know for Fy you use the sin instead of cos but I dont know how to find Fy.. need some help please.

thanks!