Sonrisa (Replica Multiplex Smiley)

SMILE Twin Prop

Wingspan: 1418mm,. Length: 937mm, Weight wo Lipo 1150g.
Lipo 3S2200-2600

The Smile is a remake of the legendary Multiplex Smiley, which has not been available for many years. The original was a popular beginner aircraft that was only equipped with elevator and rudder.

I tried to recreate the character of the original faithfully – but with sensible improvements:
The new Smile also has Ailerons and a spring Landinggear, which significantly increases handling and versatility.

Thanks to modern, inexpensive brushless motors, the model is excellently motorized and thus offers a lot of flying fun even for advanced pilots. The wings are reinforced with carbon tubes up to the engines, and an 8 mm carbon boom stabilizes the tail unit. All parts are equipped with connectors, which significantly simplifies construction.

The Smile is easy to fly, robustly built and ideal for beginners - but also a nostalgic delight for experienced model pilots who still know the original.

Material:
2x Outrunner A2012
ESC 30A
2x Prop 9x5-9x6 CW/CCW (R/L)
5x 9g Miuzei (China Metal Servos) or
Corona Servo DS939MG II (my recommendation)
2x 30cm servo extension
Linkage ailerons, elevator/rudder at your discretion (1.2mm steel wire)
2mmx1000mm Carbon Rod for Ailerons and Tails
2x 1.2x600mm steel wire
2x 4x170mm, 2x 4x85mm stabilization rear
8x490mm Carbon Tube Tail Beam
2x 6x290mm, 1x 6x580mm Carbon Tube Wing Carrier
2x 4x185mm Carbon Rod/Tube (Rumpf 4 & 5)
1x 2x300mm Carbon Rod Horizontal Stabilizer
4x M4x30mm screws with nuts

Chassis: Wheel mounting 2x M3x26
Nose Wheel 45xM3 Bolt with Nut
Swing axle 2x 4x19mm, 1x 3x18mmCarbon/steel rod
Suspension: 4x 16x2.5mm – 18x3mm O-ring or rubber band/tension spring

Maiden Flight:
https://youtu.be/qjuiDl9X-rI
Build Video:
https://youtu.be/KLuPFaK8-AY

Fuselage: 3% Gyroid Infill! - 1 Wand, 2 Bottom Layer, 4 Top Layer
Fuselage part tail beam: 8% gyroid infill! - 1 wall, 2 bottom layers, 4 top layers
Tail: 5% Gyroid Infill! oder 5% 2D Lattice - 1 Wand, 2 Bottom Layer, 4 Top Layer
Wings: 3% Gyroid Infill! or 3% 2D Lattice - 1 Wall, 2 Bottom Layer, 4 Top Layer

PLA/PETG/ASA/ABS (CF) at your discretion and print material.
I always print with at least 2 wall lines, 15-25% Infil Grid – even more for the landing gear!
TPU tire I print with 2 walls 12-15% infill gyroid.

For up-to-date print settings recommendations, please check my website SODYs3D.com, where I continuously update these settings.