Strength of undercarriage & bungee cord shock absorbers design and dimension.

In an all wood fuselage design similar to RagWing Roger Mann designs or Fisher Flying products
I'm concerned with strength of undercarriage and dimension of bungee cord shock absorbers.I didn't
found a lot of reference to help. I have the R.Hisckocks PDF that misses the Landing Gear Chapter and
don't know if it could help. All advice is welcome, thanks.

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Link to Ragwing RW22 bungee cord shock absorber pdf design example
https://drive.google.com/file/d/16Tq...ew?usp=sharing

A good description of shock cords is there
https://www.univair.com/content/Shock-Cords.pdf

Example with a 1080 cord:

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