You can make a floppy or a twirler. Both are shown here. If you want to make it easy, just use a dolly as was suggested earlier. It can twirl on its wheels and be propped up at different angles to suit the sun's altitude.
First I used the wooden tray on the roof for the single panel. It lies flat for travelling strapped to the cargo railing at the back of the roof, then on arrival I prop it up pointing South with a little stand I made or just against the air conditioner shroud.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26854712/srt/pa/pging/1/page/1.cfmBTW this coming summer 2014, I will have my 230w 24v panel in the contraption on the ground instead of the two 100s shown there, and will still have the 130w on the roof as shown.
1. 1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
Photo in Profile
2. 1991 Bighorn 9.5ft Truck Camper on 2003 Chev 2500HD 6.0 Gas
See Profile for Electronic set-ups for 1. and 2.