Designed by Slava Kondratiev, at the time the leading light aircraft designer in Russia, the Yak55 was first airborne in May of 1981. A few years later, in 1984, the Russian Team was equipped with the Yak55 - and it immediately won the World Aerobatic Championship.

The Yak55 with the designation "SP" is a revison from the mid-nineties where the original design was improved in a number of areas.

This addition to the 25e-class is made with slightly out-of-scale wings to allow for a floaty model. Carbon wing tube, tough landing gear, strong stabilizer for wider speed envelope and scale wheel pants make this Yak55SP a beauty!

For lowest weight use 2200mAh 3S lipos, but you can easily use a 3300mAh battery pack for long duration sport flights. We recommend 400W-500W brushless motor.

More about the Hyperion Super 3D 25-class

In terms of size, the "25e" models can be related to "Engine 25" (0.25ci) models, but the little "e" means they are 100% electric. Designed from the "ground up" around the extremely powerful 400W+ outrunner motor, you have to experience the performance yourself to believe it. At about 400Watt per kilo the Super 3D planes are not boring!

Constructed of hand-picked light balsa and ply, the fuselage, wing, and tail groups carefully follow the lines of the full-size model, but the Hyperion engineers have stretched wing area and control surfaces for controllable high-alpha performance at very low flight speeds. You don't have to give up scale beauty for this performance: The hand painted fiberglass cowls are a work of art. The pre-painted super-clear canopies are already mounted on a wood frame, with instant-access retention systems. Battery access in a few seconds keeps things easy and safe.

The wings of  models are joined by a large-diameter carbon tube, and removable in a matter of a few seconds for easy transport to the field, and for storage at home (CAP232 has a stong, light single-piece wing).

Bigger flies better, and these larger 3D models is also very easy to see at a distance. That sharpens the maneuvers of any pilot, and contrasting stripes on wing bottom really help with orientation.

Specifications:
Length：1033 mm
Wingspan：1174 mm
Wing Area：28.7 dm2
Servos: 4
Flying Weight：1120 - 1180gr

DualSky XM3542CA-6T 280/450 W  or DualSky XM3548CA-4T 390/650 W

APC Thin E PROP 12x6.0 - APC Thin E PROP 13x6.5

VarioProp: 3-lapainen keskiö 8,0mm 3 x Potkurinlapa 12,0" D (6 tuuman nousu)

DualSky 40 A ESC - DualSky 60 A ESC UUSI

2200 mAh 28C 3s1p 11,1 v - 2500 mAh 28C 3s1p 11,1 v