Plus-Silent
An advanced, sporty but very balanced product, able to offer superior performance, perfect both for competitions and for free and adventurous flying. The Moster 185 is all this and much more. It is the engine that has enabled to achieve the most important objectives over the years, the engine with which various races and championships have been won, record achieved and the most difficult challenges faced. It is available in two different versions, Plus and Silent. The Silent is the basic version of the Plus, much appreciated by those who love a structure simplified to the maximum, where the weight/power ratio is optimized at the highest levels.
RESEARCH AND DEVELOPMENT
Striving for excellence
The Moster 185 is one of the engines on which Vittorazi has experimented with the most: the heart of production for over 10 years, on which much of the company research has focused over the years, raising its level time by time. Different versions have been made and updates have been made that have allowed the improvement of different components of the product, improving performance, making it simpler to use.
RELIABILITY AND DURABILITY
Flying pleasure for every pilot
Thanks to its quality and technical features, it is the ideal engine to fly in any kind of weather conditions, also with hot or extreme cold, being able to guarantee the maximum resistance and reliability. It is also perfect for travelling, thanks to its compact dimensions and ease of transport.
- Description
- Technical Data
- Documents
- spare parts
Airbox
Rapidity and high performance: results obtained thanks to the study of the air inlet in the new airbox system, stabilised and able to always offer a prompt restart at any speed, without incertitude even in sudden accelerations. We have optimized also the volumes and fluid dynamics of the airbox syste
m. As a result, consumption has been reduced by 10-15% at cruising speed (5.000-6.000 rpm) and power
delivery is increasingly stable and pleasant. The carburetor filter has a double layer of sponge to separate large and thin powders.
Combustion
Vittorazi's research never stops, in order to guarantee products of high level and exceptional functionality: for this reason in the Moster 185 we have optimized the air flow through the piston, by an accurate study of the racking, and we have also minimized the vibrations produced by the engine, through a careful study of the balance of the crankshaft.
Electric Starter
This extremely compact system is very easy to switch on, thanks to the use of a single button. There is greater freedom to turn the engine off and on again in flight, and the possibility to guarantee maximum manageability to the pilot in all situations, in comfort and safety.
Exhaust
For the addition of a second joint we made a specific study of the profiles. Thorough research has been made to identify its correct positioning, so that it was not subjected to excessive vibrations and the risk of blockage. The manifold has been reinforced with a double rib welding system and the new bronze bush has a larger diameter and different materials, which allow for a better flow in the short and long term compared to the previous version, and a duration of 50 hours. The Db-killer greatly reduces the noise emissions.
POWER
High level performance
The Moster 185 guarantees important performance:
Thrust is regular up to 75 kg with 125 cms propeller and 78 kg with 130 cms propeller.
The "Soft Starter System" (3S) is also maintained: its the manual starting system that allows the engine to be started both in flight and on the ground, with a single pull by using only one hand.
| Cycle | 2 Strokes |
| Swept volume | 184.7 cc |
| Power | 25 hp at 7.800 RPM |
| Intake | Silencer airbox - Walbro carburetor - Reed valve intake |
| Cooling | Extraction from propeller |
| Starter | Manual version: Manual - 3S (Soft Starter System) / Dual version: Manual - 3S (Soft Starter System) + Electric starter |
| Clutch Plus | Centrifugal clutch - CNC machined |
| Clutch Silent | No clutch, direct transmission |
| Reduction drive | Poly-V belt - Ratio 1/2.68 - 1/2.87 |
| Exhaust pipe | Hand-made pipe and DB-killer system, second joint, silencer pipe in carbon fiber |
| Fuel | Unleaded gasoline - Synthetic oil 2.5 % |
| Consumption | 3.0 liters/hour at 30 kgs of static thrust, propeller 130 cms at 5200 RPM |
| Weight Plus | 14.3 kgs Manual version / 15.6 kgs Dual version |
| Weight Silent | 13.9 kgs Manual version / 15.2 kgs Dual version |
| Max Thrust | 75 kgs prop. 125 cms at 8.500 RPM - 78 kgs prop. 130 cms at 8.500 RPM |
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