Translations:KAVAN TARA A1 (F1H) - Instruction manual/25/en

From KAVAN RC Wiki

Start with the tail boom. Blue it on the building board in order to make the tail boom true and straight. Glue the front balsa block 20 to the spruce stick (2×8×600 mm) 22 taking care the outer edges of the block matched the edges of the stick.

Note: The rear balsa block 21 will be glued to the bevelled side of the front block later.

Now apply glue to the rear part of the spruce stick 22 and block 20. Attach the rear balsa block 21 matching the edges of the stick. Glue the other 2×8 mm spruce stick 23 to the tail boom.