Has anyone Installed the steel bungee from Viking Aircraft?

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Yes; The "steel bungee" is a vast improvement over the bungee cord when taxiing, and the ability to adjust the pre-load on the spring for different engine weights is another advantage. It's also  low maintenance compared to the bungee cord.

Thank you for the reply! I changed my rubber bungee to the steel bungy last night! Can’t wait to test it out! I was just curious if anyone on this forum had done it, and what it was going to involve! But I believe I got it figured out ( hopefully ). Thanks again.

I have had great results from my steel bungee, But I too have a "bought" aircraft. Built before the plans change that installs the doubler shown in Stans photo.

The area behind has cracked "imagine a line from front to rear passing thru the center of the hole". I have repaired and installed a similar doubler as shown above.

just a note to older airframes built to plans not using doubler (users must have had cracks before steel bungee design hence the reinforcement to area)

The doubler is part number 6B8-10 "Forward Gusset" on drawing 6-XB-13 of the CH601XL illustrated parts catalog.

CH601XL Illustrated Parts Catalog

I installed on my 601.  Since I have not installed the engine yet it was very easy.

I installed a steel bungee on my 801. Had to fabricate new straps, the 701 dimensions are different. Those are grade 8 bolts and couplings, rated at 7000 pounds each.


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