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Date:  10-13-2016
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Step Fabrication

Yesterday evening, I returned to the shop to fabricate the steel step. I am aware that SPA has a fully finished step as an option, but I had a one-foot length of 2.023 X 0.857 X 0.049 streamline steel tube and a nine-inch length of ¾” X 0.049 round 4130 tube on hand, and a Tig welder; so I decided to roll my own.

I measured the angle of the mounting socket in the fuselage relative to a vertical plane through the aircraft centerline, and a vertical plane normal to the aircraft centerline at the step socket location. Using a miter saw with a carbide tipped blade, set up to match the measured angles, the vertical and horizontal components of the step were cut. Magically, the two pieces mated correctly. The horizontal step, measured horizontally, was about 3/16” shorter than the vertical member, but this was expected due to the cut angles of the two components.

With this success in hand, I retired for the evening.
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Cutting Vertical Member

Cutting Vertical Member

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Cutting Horizontal Member

Cutting Horizontal Member

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