No time to post. Go down to the aviation department of True Value Hardware. Find what they call Bridge Spikes (or use the trade name of "Big M8%#r F^@&!#g Nails"). Get the largest and longest they have. In general they'll be about 3/16" diameter and 12" long. Get 3 Spikes per tiedown. Go over to the chain section. Find the smallest proof chain the Spikes will fit through. Have them cut four links per tiedown. Go to the junk tools counter. Buy a METAL FORGED hammer (no wood). Put this all into a small nylon carry bag meant for tent poles or similar.
Go back to True Value. Get three pieces of 3/8" plywood as large as will slide under the back seat. Put these pieces under one half of the back seat. Put the Spike assemblies under the other.
When you get to OSH, don't push your airplane ALL the way back, stop about 12" short. Put the plywood under the backs of the wheels. Push the airplane wheels onto the plywood. Chock the wheels to keep the wheels onto the plywood.
Start with one wing tiedown. Push the Spike through one link of the chain. Pound the Spike into the ground at a 45° angle to the horizontal. Repeat with the other three spikes at 120° horizontal degrees from each other. Put your rope through the last link in the chain. Strap that sucker down.
I'll find a place to post the article but probably not before tomorrow morning.
POSTED: https://dl.dropboxusercontent.com/u/4662601/KP1301.zip
Jim