I have taken a bunch of the coroplast political signs and hinged them together with duct tape (not DUCK tape) to form a nice takeoff "deck".  I cut a taper of 1/2" off each end, and that gives the perfect curve for 40' to 50' lines.

Put two edges together and tape them tight.  Fold them back and put a tape around the joint.  You now have a nice hinge in one direction.  Reverse for the next panel and you get a fan-fold set that becomes very compact. 

The signs are 24" x 18", so you can use 8 hinged on the 18" side to get a 12" ramp.  Andy B is going to make a wider ramp hinged on the 24" side for more width. He will need about 12 panels, and I am going to calculate the cut to match 60' lines.

Since we fly a bunch of electric on a local soccer field, having a takeoff strip works out great!

I grabbed a dozen or so political signs today. I went back later after work for 3 very large 4 x 8 corplast signs near the Fullerton airport and our meeting place at AFI and the city of Fullerton had already taken them down. Well anyway picked-up 12 sheets of political sign coroplast to build with for the time being.

Plan on building a stuntable version of Larry Renger's new ET-1 for starters. Was also thinking of proposing a club junk yard fun fly using some these recycled signs. Just a fun thought...

Mike

what good would a (12") ramp be maybe you mean 12' ?

I was thinking of building a dog house with the stuff.  Triple-thick it should be well is insulated.

I wonder what the fuel will do to the art work on the signs?  I guess I should test that.  I have enough signs in the back yard.  Be sure your choice of candidates doesn't offend the park board.  Is you choice of a "deck candidate" an endorsement or an insult?

Painters Choice goes on just fine and is fuel resistant.