Construction Cessna L19”BIRDDOG”
All glueing is done with ca glue fast and slow.
Wings:
Take out all cnc cut formers regarding the wings and clean up the parts with fine sandpaper.
Tap the openings in Rib R1 with M4 thread and harden with ca.
The basic framework is constructed upside down onto the drawing, see 1.
Pin down the 2x11 balsa stringer onto the drawing and place the framework onto the stringer so it compares to
the drawing.
Place 2x11 leading edges and the middle 2x11 stringer , place the formers FF1 top and bottom and formers AF1
top and bottom and strutholder SH1 ,see 2
Make up the bottom sheeting from the supplied 1,5x100x1000 balsa sheet.
Draw up some reference lines for lining out the wing assembly.
Place the middle part of the wing onto the bottom sheeting and glue with ca.
Tilt up the middle part of the wing so that the tip part is flush with the sheeting, now glue the tip part onto the
sheeting, start with the main former, and glue the ribs one by on onto the sheeting.
Place Trailing edge from 2x11 balsa onto the sheeting against the ribs.
Place helpformers A,B,C onto the appropriate positions.
Now pin down the wing onto the drawing , the bottom of the wing is onto the drawing.
Place a scrap piece of 1,5mm balsa onto the servo position and place the servo , make the opening for the servo
arm and place the servo wire.
Place the aileron leading edge from 6x8 balsa and place the aileron ribs from scrap balsa and shape aileron
leading edge and ribs to form.
Make the 2mm strut wire opening in the bottom sheeting.
Make up the top sheeting to plan and glue to the top of the wing assembly with slow ca, make sure the wing is
onto the table and to the helpformers,
When dry , take off the wing and clean up all edges, sand trailing edge to plan , place leading edge and sand to
shape , see also drawing.
Place tips made from 2 parts 10mm cnccut balsa and glue to wing , sand to shape.
The ailerons can now be cut out and sand the aileron edges to shape.
Place the aileron horn at the correct position in relation to the aileron servo.
Finish the wing, make the hinges from the supplied polyester sheet, do not use the PVC sheet for this.
Make the hinge openings with a sharp knife and place hinges, glue them with thin ca.
Fuselage:
Start by making the motor holder, you might want to chance this for your particular motor or for a .40 four
stroke.
Make the motor unit from parts FM1,2,4,5,6 see 6.
Tap the Midribs FT6 with M4 and harden with ca.
Glue the FT6 with FT2,3,5 see 7
Make the fuselage middle part from F4, which you have to join, and F1, F5,F6 lock them together and glue with
ca.
Place F3A and F3, place WH1 left and right in accordance with the holes in F6, the landing gear has to fit in
there, place WH2 left and right.
Place double F10 and F11, take care not to close the opening in F8 for taking FR6.
Place the spruce 6x6 stringers front (length is 200mm approx.). Glue them also to F3A, with help from template
1.
Place the midparts (picture 7) onto the 6mm spruce stringers see 8 ,9,10, use the Template for the correct height.
