What are the forces on a tied down glider?

On Aug 13, 2:49*pm, Andy wrote:
Others would say why worry - put it in the box!

Kinda hard to do that if:

1) You've landed away from home and are waiting for the box to arrive

2) Touring in a self-launcher without a chase crew

On Aug 13, 1:58*pm, 5Z wrote:
On Aug 13, 2:49*pm, Andy wrote:

Others would say why worry - put it in the box!

Kinda hard to do that if:

1) *You've landed away from home and are waiting for the box to arrive

2) *Touring in a self-launcher without a chase crew

Williams Soaring is selling JJ's little tie-down kit that can be
carried in the ship.
JJ

There's a tiedown technique I developed 40 years ago when I decided that
steel stakes were too heavy and often didn't work in soft ground.

I bought some stout 10 gallon nylon bags with 1/2" nylon rope closures and a
lightweight folding shovel "trenching tool" from a military surplus store.
Three bags and one shovel were much lighter and took less space in the
glider than the steel screw-in stakes they replaced. The idea was to dig
holes and put the dirt in the bags and push the filled bags into the holes,
then tie the glider to the nylon ropes.

After using them, I tried to pull the bags out of the ground with a truck
but gave up and left the bags in the ground when the truck almost got stuck.
Even if the glider was able to pull a bag out of the ground, the
considerable weight of the dirt filled bag would still hold the glider. On
the other hand, steel stakes pulled out easily.

I've just heard that these bags are still available through military
sources.


"5Z" wrote in message
...
On Aug 13, 2:49 pm, Andy wrote:
Others would say why worry - put it in the box!

Kinda hard to do that if:

1) You've landed away from home and are waiting for the box to arrive

2) Touring in a self-launcher without a chase crew