courierguy wrote:GravityKnight wrote:Scolopax wrote:I recently discovered a product called "Orange Screw" that makes an excellent tie down anchor. They are not intended for aviation, but they are very well designed and perfectly suited for tie down anchors in the wilderness. They are functional, lightweight, inexpensive, durable, easy to drive in to the ground and very difficult to pull up from most earth that I have driven them in to. I would highly recommend these for anyone's airplane wilderness tie down kit.
http://www.orangescrew.com/
I think I am going to get a couple of these, they are cheap enough to test them out. I like that they are light! Super light!
Seems you could thread 2 in per wing and raise the capacity up even further if needed
Hit one rock with one of these and you'd be....screwed. Good soil though, they look fine. I like using natural tie downs whenever possible: a big sage brush, fence line, boulder, etc., and will park accordingly when landing off airport and leaving the plane for a while. Duh...it just occurred to me I could get a few screws to use when appropriate, AND still carry my existing 3 stake tie down kit, as their weight is so slight, why not?
I have used them several times now. I carry my home made 2024 aluminum stakes I made (5/8 2024 alum I turned to a point in the lathe, then swedged a sleeve of steel on the end about 2" long and drilled through that and the stake to put an eye bolt to attach to it, about 18" long or so iirc. Total weight for both was like 2 lbs ish) anytime I know I'll need a tie down, but leave the orange screws in the plane all the time in case I need a tie down I didn't plan on, at least I have something... they weight nothing.
I have tried threading them into ground so hard they just hang up, I've hit rocks, no damage to the screws from any of that, they are surprisingly strong and "springy" ... since you twist them in by hand you can stop before you damage them due to the ground or things under the surface. They work best in ground you can just barely turn them into (duh).
I do regularly use them to tie down the tail, and they have not had an issue yet. I was in KS at the RANS fly in the other day, and we got pounded one day and most of the night with 40mph+ wind. My home made stakes didn't loosen up, and the orange screw on the tail was still secure. The ground was right for it - the wrong soil and it wouldn't have much pull, true for any tie down I've seen so far though.... Even though I've not had an issue with them, I like my stakes better for the wings and feel better with those there than the screws.
I was skeptical about the orange plastic screws too, and I'm not sure I'd even bother with them on a heavier airplane, but for the money and especially weight, it doesn't hurt my feelings to have them riding along in the plane as another option.