Robbe K-Rat II Pro ARF 2.0 m — Compact Racer/Hotliner with 2 Flaps
The Robbe K-Rat II Pro is a 2.0-metre compact all-rounder designed for electric-powered slope and thermal soaring. Built as an ARF (Almost Ready to Fly), it combines a lightweight GFK/CFK airframe with a racer/hotliner wing profile for fast, efficient flight.
2.0 m wingspan with 2 flaps for precise roll control and tight manoeuvres
Electric brushless drive system delivers strong, consistent thrust for extended soaring sessions
Lightweight GFK/CFK construction keeps the model agile while maintaining structural rigidity
ARF format minimises build time — focus on flying rather than construction
What makes the K-Rat II Pro stand out
The K-Rat II Pro bridges the gap between a pure competition racer and a versatile slope soarer. Its compact 2.0-metre span makes it easy to transport and launch, while the two-flap configuration gives pilots fine control over roll rate and line tension. The combination of CFK and GFK materials keeps weight low without sacrificing durability.
Ideal for experienced RC pilots
This model is designed for pilots who already have hands-on experience with electric sailplanes and understand the basics of slope soaring and thermal flying. It is not a beginner trainer — it rewards precise control inputs and rewards pilots who can read air currents and adjust their flying style accordingly.
Application of the Robbe K-Rat II Pro
Launch the model on a slope or winch and transition into thermal lift
Use the two flaps to initiate tight turns and maintain line tension during manoeuvres
Fly extended sessions on smooth air, exploiting the efficient racer/hotliner profile
Land back on the slope or on a prepared flat area using the flap-assisted approach
Robbe is a German manufacturer specialising in RC model aircraft, with a strong focus on electric sailplanes and slope-soaring models. The K-Rat II Pro sits in the racer/hotliner segment, targeting experienced pilots who value performance and compact portability. The brand is known for ARF formats that reduce build time and deliver ready-to-fly quality.
It is a 2.0-metre compact electric racer/hotliner sailplane in ARF (Almost Ready to Fly) format, designed for slope soaring and thermal flying with two flaps for roll control.
The ARF requires one battery (1x), a receiver, an ESC (regler), and a transmitter. These are not included in the scope of delivery and must be sourced separately.
The airframe uses a combination of CFK (carbon fibre) and GFK (fibre glass), providing a lightweight yet rigid structure suited for dynamic slope and thermal flying.
The ARF kit includes the pre-built airframe with GFK/CFK construction, 2 flaps, and all necessary hardware for final assembly. Battery, receiver, ESC, and transmitter are not included.
Robbe provides a 24-month manufacturer warranty on the K-Rat II Pro ARF, covering manufacturing defects under normal use.
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