Sunday, June 12, 2016

Mounting the seat

I took the seat to work to weigh it (4.062lb) and got a great suggestion to use hose-clamps to mount the seat to the cross-tubes. My initial thought was to put one at each end of the aft seat tube to provide best support.  However, those locations would have interfered with the control cables, so I went with a single clamp in the center. 

After cutting out the first slots and test mounting the seat, I marked the locations for the shoulder and seat-belts.  Those slots were cut with the Dremel using a burr and cleaned with a sanding drum.  The edges were generously rounded to prevent sharp edges from cutting the seat-belt (that will be an area of inspection).




After all that, here's the seat mounted.  Yippee, onward to the next thing.

Seat:

  • DONE seat mold body work
  • DONE finish the seat mold
  • DONE pull a seat from the mold
  • DONE mount the seat to the nose
Nose:
  • change control stick axis bolt to drilled with cotter pin (will have to remove the torque tube)
  • aileron crank tube slots
  • sidewalls in forward nose section (G4N13) 
  • make a nose skid (G4N10)
Tail:
  • AN3-26A bolt into the forward line guide bracket, replacing a rivet (G4T14)
  • swage aft cables (4x remaining) 
  • round off the tail skid to be more roundy than pointy
Cabanes:
  • new cabane aft tubes with sleeves
  • cabane compression braces (some are loose after the cabane rework from G3 to G4 design)
Wing:
  • glass the ribs to LE and TE
  • stiffener for aileron control line 
  • leading edge shell (G4S9)
Control surfaces:
  • glass the right aileron ribs
  • flip fwd aileron control horn bolt to other direction ... and switch to AN3-13
  • rivet aileron crank tube to trailing edge (G4S4)
Miscellaneous:
  • wrap every pulley with tape and heat shrink to hold stiff and straight
  • threadlock on every quick-link
  • DONE neoprene eyebolt spacer: horizontal stab (G4T8), elevator control arm (G4T16), tail strut (G4T19)
  • check every quick pin for elastic retainers are both present and correct length (several are just singles)
Buy list:
  • DONE 1" wide fiberglass tape (I ran out on the aileron, also needed for the ribs to LE/TE joint)
  • DONE (1x) AN3-26A for fwd tail line guide (G4T14)
  • DONE (2x) AN3-13 for aileron fwd control linkages
  • nose skid plastic plate
  • covering and adhesive
  • (1x) 1/8" SS quick-link

1 comment:

Anonymous said...

Wow! That's a great seat! I'll buy you a beer if you make me one!

Jeff

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