Value Hobby TWEETY - 25 Instruction Manual - page 10
If the covering is not removed from the stabilizer, a
proper bond for your adhesive will not be achieved.
Step 7: Mix 30‐minute epoxy and spread some inside the
horizontal stabilizer mount on the fuselage. Spread more
epoxy onto the top and bottom of the stabilizer where the
covering was removed. Insert the stabilizer into the
fuselage from the rear and adjust the alignment using the
guide lines that were drawn onto the stabilizer. Wipe off
any epoxy that squeezes out using a paper towel
dampened with rubbing alcohol. Recheck the alignment
frequently while the epoxy cures.
Install the Vertical Fin
Step 1: Test fit the vertical fin in the slot in the top of the
fuselage. Sand the edges of the slot if necessary to obtain
a snug fit. Draw a line around the vertical fin where it
meets the fuselage. Cut the covering 1/16” [1.6mm]
inside the lines you drew on the vertical fin and the top of
the fuselage. Remove the covering.
Step 2: Mix some 30‐minute epoxy and apply it to the top
of the horizontal stabilizer through the slot and on the
sides of the slot. Apply more epoxy to the vertical fin
where the covering was removed. Insert the vertical fin
into the fuselage and adjust the alignment. Check for a 90
degree angle between the vertical fin and horizontal
stabilizer when viewed from the rear. Use masking tape to
hold the vertical fin in this position. Recheck the
alignment frequently while the epoxy cures.
Install the Elevator
Step 1: Find the pre‐cut hinges from the included
accessories. Test fit the hinges in the slots in the elevator
halves and stabilizer. If the hinges do not slide into the
slots easily, work your knife blade back and forth in the
slot a few times to provide more clearance
OF HINGE SLOT
DEEP IN CENTER
DRILL A
HOLE
3/32
Step 2: Drill a 3/32” [2.4mm] hole, 1/2” [12.7mm] deep in
the center of the hinge slots. Reinsert your knife blade to
clean out the slot after you drill the holes.
Step 3: Insert four hinges into the slots in the stabilizer.
Press the elevators onto the hinges until the gap between
the elevators and stabilizer is about 1/32” [.8mm]. Flex
the elevators a little in one direction, but do not allow
them to pull away from the stabilizer. Apply six drops of
thin CA onto each hinge. Turn the fuselage over and apply
six more drops of thin CA to the other side of each hinge.
DO NOT use accelerator while hinging, as the CA must
wick into the hinge to properly attach the hinges. Use a
paper towel to absorb any excess CA. After the CA cures,