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Modellen levereras med kolfiberpropeller och Polinis gashandtag.
POLINI THOR 190 HF
As its Thor 200 HF older brother, the Polini Thor 190HF has been developed by the R&D team using the new 3D modeling software systems and flow dynamic simulation. The result of this research and the introduction of the innovative HF System grant better cooling improving the performance of the Thor 190HF. Polini THOR 190 HF engines feature: 193cc displacement, reduced weight till 12,3 kg if equipped with Titanium exhaust system (available as an optional).
COOLING SHROUD The new design of the “HIGH FLOW” cooling shrouds combines the now existing air forced system with fan, the extraction generated through the propeller and the specific design of the cooling shroud. This system, together with the SPARK COOLER lets the lowering of the engine working temperatures.
SPARK COOLING SYSTEM SCS is the innovative cooling system of the spark plug that lows the working temperatures in the point of highest warm and in the burning chamber, eliminating the events of over-heating. Polini SCS system reduces the EGT temperatures till 100 C° and till 60 C° the ones under the spark plug.
HEAD The new profile of the burning chamber improves the propagation of the flame optimizing the fuel combustion phase. This peculiarity, together with the increasing of the compression ratio, increases the engine performance reducing the fuel consumption.
TRASMISSION Belt transmission with 2,83 reduction ratios. The belt is made of special mixture with the aim to increase the grip, to reduce the servicing, to improve the stability, life and power output. To reduce and contains vibrations a new crankshaft with distributed and optimized rotating weights has been designed for this specific transmission system. To resist to the belt strength, a special bearing has been housed on the transmission case side. It can stand a transversal load 10 times higher than the standard roller bearings. It lets the belt have a constant stretch.
SPECIFIC POWER UNIT The light alloy casting cylinder has a 193cc displacement, 64mm bore, 600mm stroke. It offers the best performance with 27hp of power at 8000 rpm., even with the highest working temperatures. Its liner has a nickel-chrome coating for the best piston sliding. The piston is made of gravity die-cast light alloy at high silicon content with 2 special chromed and nitride steel rings. The new profile improves the performance and reduces the piston wear.
EXHAUST SYSTEM The exhaust system is completely hand made for a better product quality. It is divided into two sections with manifold with spherical connection and fixed on natural rubber suspensions that grant longer life. The exclusive new springs with steel hooks make them stronger and offer the possibility to be better fastened. The exhaust system has a compact design and contained dimensions to reduce the weight. The small overall dimensions improve the aerodynamic and grant a low noise level.
FUEL SYSTEM Walbro carburetor with specific setting and air box. This setting, grants both a power increase at 8000 rpm and more constant power output. The Air Box with the new inlet holes grants a noise reduction and makes the setting easier.
FRAME CONNECTIONS To make the assembly on the frame easier, the frame-engine connecting points of the Polini Thor 190 HF are the same as the other engines: Thor 80, Thor 130 EVO, Thor 200 HF and THOR 250.
FLASH STARTER It is made of carbon steel material by Polini which grants longer life. To improve the fixing, M6 screws have been used.
The other models of THOR 190 HF are equipped with: – POLINI THOR 190 HF with CENTRIFUGAL CLUTCH Thor 190 HF is also available with the centrifugal clutch studied to grant the maximum safety features during the engine preparation, take-off, flight and landing. This model weights 14,4 kg. It includes the Flash starter. – POLINI THOR 190 HF with MANUAL and ELECTRIC STARTER Thor 190 HF is also available with electric starter without centrifugal clutch. This model includes the battery charger and a 12V electric connection for the flight instruments. This model weights 14,9 kg. The engine comes with battery, starter relays and throttle control. – POLINI THOR 190 HF with CENTRIFUGAL CLUTCH, ELECTRIC STARTER and manual FLASH STARTER The full optional model fits the centrifugal clutch, flash starter, electric starter, 12V electric connection, battery, relay, and throttle control. This model weights 17 kg.
|Polini Engine||2 stroke monocylinder|
|Bore for stroke||64 x 60|
|Cylinder||Aluminum with Gilnisil coating|
|Piston||Two chromium plated rings mm 1|
|Intake||Reed valve in the crankcase|
|Air filter||Air box|
|Ignition||Electronic with inductive discharge|
|Battery charger prearrangement||Output power 80 W at 5500 RPM (with electric starter only)|
|Spark plug hood||5k Ω resistance|
|Fuel type||Lead free petrol with 2% synthetic oil|
|Gear reduction unit||Belt transmission with 2,83 reduction ratio|
|Starter (Option electric starter)||Pull starter with self-winding rope.|
|Clutch||Dry centrifugal (for model with clucth only)|
|Muffler||Expansion with aluminum silencer|
|Engine weight||13,6 Kg – 14,4 Kg clutch – 14,9 Kg elect. starter – 17 Kg clutch+elect. Starter|
K2 Low swing arms 2500kr
K3 Intermediate arms 1700kr
K4 High swing arms 2700
K5 Swan neck arms 3500kr
928.830.002 CHT/RPM meter 2395kr
Titanium Exhaust 11'000kr