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Tech NoticeYak-54

Taking 3D performance to the extreme!


The Yak-54 is known for its aerobatic agility. Great Planes is known for producing the most realistic-looking — and flying — R/C models. Imagine the exciting results when Great Planes expertise is applied to creating a big, bold replica of this Unlimited Class competitor! Better yet, put yourself at the controls of this 25% Yak-54 and experience the thrills of performing precision maneuvers with ease and style!
  • The perfect combination of light weight and “in-flight” durability.
  • An excellent 3D and IMAC performer as well as a great sport flyer.
  • ARF quality that's unequalled — and complemented with proven Great Planes brand hardware.

SPECIFICATIONS   GALLERY 

Parts
Don with the Yak-54
Balsa Sheeting
Assembling the Yak-54's factory-built components takes as little as 20-25 hours — amazing for a model of this size. And for years after any Great Planes model is introduced, replacement parts remain available so you can keep your model in
peak flying form.
 

“When it comes to performing 3D maneuvers, the Yak-54 is a favorite among extreme pilots. Our 25% scale model of this state-of-the-art design is 100% fun, whether it's sport flying, aerobatic training — or competing in IMAC-sanctioned events.”

- Don Anderson, President and Founder
  Great Planes Model Manufacturing

  The Yak-54 offers an ideal balance of low weight and high structural integrity, both essential for performing high-stress 3D maneuvers. The turtle deck is a good example — it's constructed of a precisely sculpted foam shell that's reinforced with balsa sheeting.

The fiberglass cowl and wheel pants
Landing gear
Wing panels
The fiberglass cowl and wheel pants — painted to match the surrounding Top Flite® MonoKote® trim scheme — add to the Yak-54's scale-like looks. Great Planes does the work...but you enjoy all the compliments!   The aluminum landing gear offers smooth contours that perfectly complement the model's scale looks — and provides the strength and reliability needed for confident touchdowns.   The wing panels slide onto an aluminum joiner tube for easy transportation and easy attachment at the field.

Control precision
Fuji Engine
O.S. Engine
The Yak-54's tail gangs two rudder servos, which increase control precision. It's one of numerous design elements that combine to give this model the ability to execute any current 3D maneuver to perfection.   For gasoline power, Great Planes gives the Fuji-Imvac BT-43EI the “thumbs up”. It has been extensively tested in the Yak-54 and passed with flying colors. The engine's Electronic Ignition System offers easy starts and reduces weight and vibration.   An ideal glow engine match is the O.S. 1.60 FX 2 stroke, which has also been successfully tested in the model. It helps maximize the model's potential by keeping weight low while supplying excellent power.

Engineered to perform
Radio Compartment
Control Surfaces
This Yak-54 is engineered to perform IMAC competition maneuvers with judge-pleasing precision and grace. Stable slow speed flight characteristics also make it a good choice for fliers moving up from smaller models like the .46-size U-Can-Do 3D.   Removing the canopy provides easy access to the on board radio gear, fuel tank and the thumb screws used to secure the wing panels.   The Yak-54 excels at traditional sport flying as well as demanding, IMAC contest-worthy aerobatics. All of the control surfaces are oversized to allow for aggressive 3D maneuvering. Control linkages are short, direct and dependable.

Trim
    The 25% Yak-54's large dimensions make is easy to track in the air, while also recreating the exciting performance of the original full-size aerobat; the distinctive trim scheme aids in orientation.    

GALLERY
CLICK ON IMAGE FOR A LARGER VIEW
Gallery Pic 1
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SPECIFICATIONS
Stock Number: GPMA1411
Wingspan: 81 in (2055 mm)
Wing Area: 1138 in² (73.4 dm²)
Weight RTF: 12.5-15.25 lb (5.67-6.86 kg)
Wing Loading: 25-30 oz/ft² (77-93 g/dm²)
Fuselage Length: 68 in (1727 mm)
Engine Required: 2-stroke 1.6-1.8 cu in (25-30 cc) or 4-stroke 1.8-2.1 cu in (30-36 cc) glow or 1.9-2.6 cu in (32-43 cc) gasoline
Radio Required: 4-6 channel w/7 servos (6 high-torque metal gear servos and one standard servo)
Pilot figure shown is not included.

PDFProduct Manual v1.1 - Parts Listing - Accessories Needed

PDFHow to Tighten Covering on ARF Models

MPEG View the video clip:
23.5MB, 3.4MB, 1.9MB


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