The 39" Crack Yak-55 is finally here... the long awaited bigger brother to our well known Crack Yak-55 model. New wing core with tapered tips is one of the new features creating a much larger flight envelope for strong wind capabilities. Other items include added T-Canalizer and new SFG placement for amazing KE stability at any alpha. This is a fresh new ground up re-design. Chris Jewett's original world renowned 32" Crack Yak-55 has been our go to foamie and it is now crafted into a larger size for an even more intense flight envelope. Those that are familiar with the previous 39” models will appreciate the new hardware and construction methods with adjustable push rod assemblies EPP bracing techniques for easy assembly. While creating a new ground up airframe the duel aileron servos were re-located to create a plush/clean look. The over all flight envelope has increased greatly giving a sense of unreal control authority and increased roll rate was also achieved with the addition of outer counter balance tabs. This model was designed for the pilot wanting to learn the “next step” and also those who choose a balsa 3d model alternative. Expert series:
If you prefer bigger models with fully airfoiled wing, you can´t make a mistake with these. Developed by some of the best 3D pilots for a combination of 3D capability and easy, predictable handling.
Specs: Wing Span = 39"
AUV: 375-390g (depending on components used)
Full EPP construction
Carbon Fiber landing gear
Extra-large control surfaces
Incredible control authority
Smooth pattern performance
Ideal 3D trainer
EPP Durability. Recommended Required Components: 45-55g 1000kv brushless motor
20-30A ESC
Micro Receiver
(4) 10-16g Servo’s
9 x 3.8 / 9 x 4.7 Slow Fly Prop
3s 600-1200mah Lipo | Wing span | 1000 mm |
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| Length | 1025 mm |
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| AUW | od 350 g |
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| Motor | 100 - 200W |
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| ESC | 10 - 20A |
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| Servo | 4 x 9 - 12 g |
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| Battery | 650 - 1200 3S |
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| Propellers | 9/5 |
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Lennokki toimitetaan ilman tekniikkaa . | 
