Tri-R Technologies  TR-4

BUILDER'S MANUAL

This Builder's Manual is NOT the official manual as published by TRI-R Technologies.  


FLAPS ASSEMBLY


Quick Links to Aileron Assembly Sub-Sections:

PARTS IDENTIFICATION & SETUP
BUILD UP THE LOWER SKIN ASSEMBLY
SPAR
LOWER ASSEMBLY
FLAP ACTUATOR TRACK
PREPARE AND BOND TOP SKIN
MOUNT HINGES


PARTS IDENTIFICATION & SETUP

Since the flap is hinged from the bottom, the top skin will have the curved surface on the front section, and the bottom panel will be flat. The left and right flaps are mirror images of each other - exactly alike - but reversed. Sketches, figures and these instructions will be for the right flap, with the left flap identical but reversed.


BUILD UP THE LOWER SKIN ASSEMBLY

Prepare a flat surface to build the flap on, the wing jig table would be excellent for this. A twist in this component would lead to severe flight performance degradation, so make sure the table is not twisted by checking with a level.

The wood rib will mount the flap actuator track, so it will be fitted with two nut plates (K 1000-03) before close-out of the assembly.


SPAR

The spar for the flap should be cut from a section of the Prepreg honeycomb panel.

This will be trimmed on the upper surface later to the angle and height of the ribs.


LOWER ASSEMBLY


FLAP ACTUATOR TRACK


PREPARE AND BOND TOP SKIN


MOUNT HINGES

We suggest using countersunk flat head screws and self locking nuts. Using nut plates on one or both sides may speed assembly or disassembly, but is optional.