Month: December 2017

Cozy Experimental Aircraft Update – December 31, 2017

Workshop temperature 25 deg C and humidity 26%.

Mixed a batch of epoxy using 146g resin and 56g hardner.

Epoxy was applied to the 2 plies of bid (including the peel ply).

A small bath of flox was made and applied to all the corners where the heat duct and seat brace mate with the seatback and instrument panel.

The tape was cut out using electric scissors and applied to all of the corners.

Citabria Update – December 28, 2017

CAVOK all day at CYPQ.  I arrived at noon to warm up the engine and the cockpit then clear the snow.  By early afternoon the outside air temperature had warmed up to -17 deg C.

The Citabria started no problem then I taxied to the run-up area holding short of runway 27.  The left magneto was running quite rough during the magneto checks.  I tried it several times with no improvements.  The RPM drop was > 250 RPM and the delta between the left and right magneto drops was 200 RPM so the flight was cancelled and the aircraft returned to the hangar for troubleshooting on a “warmer day”.

Cozy Experimental Aircraft Update – December 27, 2017

Permanent installation of the seat brace and the heat duct.

Outside air temperature was -20 deg C and the workshop temperature was +25 deg C (humidity 32%).

The seat brace/duct assembly was positioned in place and a marker was used to outline where it mates with the instrument panel and seatback.

62g resin and 24g hardner were mixed with flox and applied to the instrument panel and to the seatback.

The seat brace and heat duct were placed in position and 2 x 4s were used to clamp the assembly in place during cure. The bottom of the heat duct was confirmed to be flush with the instrument panel, with the seatback, and with both lower longerons.

Flox was applied to all outside joints and excess flox was wiped away.

Cozy Experimental Aircraft Update – December 26, 2017

This sandpaper should last for awhile.

Sanded the bottom of the front seatback flush with the bottom longerons and the heat duct.

Sanded the bottom of the instrument panel flush with the bottom longerons and the heat duct.

Lastly, sanded the instrument panel and seatback where the seat brace and heat duct will be installed.

Ready for permanent seat brace and heat duct installation.