My Project - CL 415 Canadair (EP)

Specification:

Full Size plane: CL 415 Canadair
Original Design: Francesco (nibbio)
Type : RC Electric Airplane
Electric Motor: Two (2) - Revox 1900kV Brushless
Speed Control: Two (2) - Revox 30A ESC w/BEC 
Battery: LiPo - 3s 2170mAh, 25C
Servo: 1 x HS-81 Servos, 3 x Emax 9g Servos
Material: Polysterine foam, fiberglass rod for wing spar

I found a great construction thread on rcgroups.com* the CL 415 Canadair (water bomber airplane) The original design was made from depron-material, however due to the availability I choose polysterine foam for my project. There are no official construction steps provided nor CAD file, therefore i started re draw the original design with few fits-up during construction.

Former are inserted and glued to predrill rectangular shape at the horizontal template. Both side which shaped the fuselage are glue along the formers.  

Prior covering the belly part, front wheel servo and main wheel strut are mounted.

I made the wing from three part of the polysterine foam to cover entire wing span. The typical ribs are glued in place above the fiberglass rod spar. The upperside of wing was glue in several phase using 'hairdryer' to ensure it grabs the ribs (airfoil contour) while the glue is cure. Aileron servos, motors, ESC and all cables are routed between ribs onto center of the wing.

Vertical stabilizer are made from three stack of polysterine while and horizontal stabilizer are sandwich of polysterine-balsa-polysterine. Elevator servo is place on the vertical stab beneath the horizontal stab to ensure neat pushrod.

I choose acrylic paint as finishing touch with printed Canadair 'Securite Civile' color scheme as the full size plane. The 9x7E propeller fits nice with the motor nacelle to add it more scale.

Mentioned setup give me approx. 5 minutes of flight at windy condition. The flight characteristic is scale where this model performed well on short take off, tight turn and high climb rate. Landing are made by flaperon will give slow air speed on its approach. 

Watch it's maiden flight here:

 

 

 *Original Design by Francesco (http://www.rcgroups.com/forums/showthread.php?t=356484)