| At the heart of the Avro are the large diameter small-fin cooling fan and the high-flow shroud, designed for optimum airflow to power ratio and consistent engine runs. |
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| The simplicity of the self-aligning clutch and cooling fan is made possible by the use of an upper and lower collet and a machine cut engine crankshaft nut, eliminating the need to dial-indicate the assembly. The starter nut uses a left hand thread. Designed for OS or YS engines. |
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| The high performance two-stage transmission, consisting of drive belt and helical machine cut gears, minimises resonance and delivers a smooth transition throughout the power band. |
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| The complete drive assembly can be removed in minutes from the single stacked main frame, by the removal of an access panel. |
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| Many parts of the Avro are intricately machined, for example, the massively strong engine centre mount. The mount is designed to spread the forces over a wide area of the main frame. The one piece engine mount eliminates stress to the crankcase, typical of split mount systems and can be removed from the chassis with just 4 bolts. |
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| A clever servo support system, exclusive to the Avro, floats on the manufacturer’s servo mounts. Metal servo horns and 3mm pushrods guarantee a rigid and precise control system. Designed for JR or Futaba servos. |
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| All the servos are at 90-deg to the control inputs and are mounted close to the main frames |
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| The Avro's unique fully-dampened gyro mount allows the gyro to be hard mounted and retained, using a velcro strap or rubber bands for total security. |
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| The bevel pinion gear is supported in widespread bearings and the entire assembly can be easily accessed and removed from the main frame with just 6 bolts. Gear mesh is achieved by moving the main gear/crown up or down the slots in the main frame - quick and easy. |
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| The 9mm stainless steel torque tube and pinned cross-drive adapters are immensely strong. Supported by two bearings within the boom, drive is transmitted between the broached couplers with the minimum of back-lash. |
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| The Avro tail-case is equipped with large diameter machine cut delrin gears. Removable red plugs offer line of sight to the gears and easy access to the retaining collar. These convenient features avoid the problems normally associated with fully closed or open tail-case designs. |
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| The Avro rotor head stands alone in its ability to offer a stable and forgiving response to the inexperienced pilot, whilst delivering cutting edge performance when set up for competition F3C, or the rigors of 3D. Multiple combinations and tuning inserts offer exciting possibilities for the most demanding of pilots. |
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| The substantial collective assembly rotates about a common centre. The pure geometry of this design ensures symmetry throughout the control range. The collective shaft is 5mm and the elevator A-link is supported on 4mm bearings. |
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| The low-slung undercarriage and modern streamlined canopy have been designed to adhere to the contours of the mechanics. This stunning design offers minimum resistance in the most difficult manoeuvres. |
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