Bearhawk 4 Place Plans #1582

Entry: Sat May 16 2020

Full day in the shop.

  1. Deburred center ribs
  2. Made blanks for the short center ribs aft of the tank spar
  3. Divided and marked out all ribs for trimming based on main and aft spar thickness. Since the trims are all 1/8 or 1/4 I listed the number of 8'ths to be removed. ex. -2 or -1.
  4. Built a fence for the router to trim exactly the thickness of the capstrip
  5. Trimmed all the rigs to their final (hopfully) length
  6. Deburred all the parts (yup again!)
  7. Layed out all the parts for flanging!


Just a note on efficency, I had originally planned to trim my working blocks with a router using an 1/8 undersized guide bit. The process would go something like:

  1. Flange the ribs that match the size of the current template
  2. take a pass with the router to shorten the length
  3. Using the shorter template flush trim the appropriate number of ribs for the length
  4. repeat.

After thinking about it I decided that it would be more efficient to setup the router to trim 1/8" once then process all the ribs to the correct final size.My regret is I didn't make this decision before deburring everything. Had I it would have saved some time.

Good Progress!

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This post is from Bearhawk 4 Place Plans #1582