Quote: Hank
Many "Claw" tiedowns pulled loose from the saturated sand; this is what many of the display aircraft used. I now own a set of the fine EAA screw-ins myself, and my dog-style screws are reverting to pet use only.
I used a Claw tiedown and it worked very well. The couple of planes I noticed with Claws that were damaged were in the center of the devestation where nothing would have kept them secure. In one case, the claw was twisted and snapped in half, indicating that it didn't fail due to a lack of being able to hold the ground. If the claw hadn't snapped, the tie down rings on the plane probably would have. I don't think anything would have held it down.
I did however, see a number of the screw in tie-downs that just pulled out of the ground easily. A flight instructor from my airport was there with his Skyhawk, and the tie-downs pulled out of the ground, but the plane was still in place and undamaged, indicating that at some point the plane was lifted up and set back down where it was.
There definitely was a correlation between light high-wing planes and damage. The Zeniths and AirCams were just totally wiped out, along with a Helio Courier that had survived many years of bush flying. It made me really appreciate the strong low wing structure of my Mooney.