Stabilizer H4 is a patented, compact, lightweight, easy to install 2-axis flight stabilization system (Roll-cyclic and Pitch-cyclic-function) developed for modell helicopters and is based on the analysis of infrared datas in a spectral area, where the composition of the ground (grass, water, asphalt, snow etc.) and the solar radiation are almost not relevant. Stabilizer H4 gets connected between the rc-receiver and the Pitch-cyclic- and Roll-cyclic-servos.

Stabilizer H4 works in almost all weathers, on day and night. Light or direct solar radiation into the sensors have no influence. The infrared horizon has to be straight / near to straight or simmetrical. In even or in a slightly hilly site, also in a valley between two mountains it will perform well. Among building or in a forest between the trees the Stabilizer will work after the helicopter is above the houses / trees (usable infrared horizon).

Features of Stabilizer H4:

Stabilizes normal flight. (For normal- and inverted-flight stabilisation look at the Stabilizer 3D-H4.) As assistance for advanced and as "emergency switch" for specialists. For helicopters with and without flybar, also for multi-bladed systems. For aerial photography helicopters.

Technical data:

Operating voltage: 4V to 10V Current draw max. 20 mA

Additional technical data:

Compatible with all Futaba PPM-receiveres, all Futaba PCM 1024 and Futaba PCM 2048 G3-receivers, with all JR/Graupner PPM-receivers and all JR/Graupner SPCM-receivers. Compatible with analog and digital servos. Sensibility can be set from the transmitter or from the control-unit trimmer. Compatible with analog and digital servos. For 4-Servos-90° H4 CCPM swashplates. Not compatible with 2-Servos-90° and 3-Servos-120° swashplates. Swashplates with 2 or 3 servos are not supported, trying to control such systems will cause mechanical or electronic damages!!! (For H1-90° and HR3-120° swashplates with 2 or 3 servos look at the Stabilizer 3D.) Only for outdoor use. Compact and lightweight: Control unit 22 x 25 x 8mm, 11g Sensor unit 28 x 34 x 9mm, 16g Instruction manuals: Stabilizer_H4_deutsch.pdf Stabilizer_H4_english.pdf

Flight with Stabilizer, the remote control transmitter is laid on the ground.

The eddies of the ground effect are controllable. The remote control transmitter is lying on the ground.