Description
Introducing the 39" Crack Yak-55, the long-awaited bigger sibling to our famed model. A new wing core with tapered tips expands the flight envelope, perfect for stronger winds. Enhanced features include a T-Canalizer and optimized SFG placement for impeccable KE stability. This reimagined design builds upon Chris Jewett's iconic 32" version, now intensified in a larger size for even more exhilarating flights.
For those acquainted with previous 39” models, you'll appreciate upgraded hardware and construction methods, including adjustable push rod assemblies and EPP bracing for effortless assembly. The redesigned airframe relocates dual aileron servos for a sleek look. The expanded flight envelope offers unreal control authority and heightened roll rate, thanks to outer counter balance tabs. Ideal for pilots venturing into the "next step" or those preferring a balsa 3D alternative. Spinner not included.
Specs: Wing Span = 39" AUV: 375-390g (depending on components used)
Recommended Power System Link:
Power System components shown below:
CSP 2212 1000kv motor
CSP / BOLT 20A ESC
CSP-D14D Servos (4)
10x4.7 Slow Fly Prop
Other Requirements:
Receiver 4 - 6 ch: Link
3s 650/1500+mah Lipo: Link
Adhesive Glue : Link
Build Resources & Replacement Parts Links:
RCF PDF Manual
TH PDF Manual
YouTube Build Video: Link
Rcgroups Thread
Replacement Parts
Upgrade Parts
Videos
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Twisted Hobbys 39" EPP Crack Yak-55 Flown at Triple Tree
Video Notes : Twisted Hobbys 39" EPP Crack Yak-55 Flown By Tea...
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Twisted Hobbys 39" Crack Yak
First flights with the production prototype of the much loved ...
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Twisted Hobbys/RC Factory - 39" Crack Yak 55 - Build & Maiden Flight
Build process for the Twisted Hobbys - 39" Crak Yak 55. A how...
14 Reviews
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Love this one!!
I originally purchased the 39" Yak55 in grey. I hated the color; it's very bland so I bought this one in the multi color scheme. I should have rated my previous purchase at 4 stars because of the color scheme but this one is definitely a 5 in every dimension I bought it with all of the power combo pack and recommended accessories by Twisted Hobbys. I have to say that I don't care for the control arms for the elevator and rudder and the clevis hook ups. So I went outside the box and made my own which was much easier and just as effective. I flew the Yak for the first time yesterday and once again what a great flyer!! Immediately was doing prolonged hovers and torque rolls. Love this airplane. It was a moderately windy day but the wind didn't seem to be much of a factor.
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Insurance
The Crack Yak 39 is one of my all time favorites in any size category and I've flown up to 40% gassers and turbines. I currently fly two of them and bought the third to put aside in case the model was discontinued or I damaged one of the others flying it very hard. If you are going to push it, I would recommend digital MG servos all around. Great model.
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39 inch Crack Plane
Went together great. Ready for flight
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The plane for all conditions
I have quite a few Twisted planes and this is the plane that serves all conditions. With the stock motor the speed range is good to even fly in winds up to 18 mph. The plane is very floaty as well. It such a pleasure to fly in calm conditions. Easy to hover yet rolls quickly too. If going to the beach this the plane to take on vacation as it covers all conditions.