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Valach VM 210 B2-4T
Product Details
Beschreibung
Valach VM 210 B2-4T 210cc 2 cilinder 4 stroke engine
At Aerobertics we have been a direct Fiala / Valach dealer
for years and we are in direct contact with the factory. We also use them in
our demo models and as a result we have the necessary knowledge and experience
about these engines so that we can offer you the best support.
The VM 210 B2-4T has been projected together with the VM 170
B2-4T, sharing the same crankcase, pistons and cylinder heads. A new, longer
stroke crankshaft, longer cylinders and new steel connecting rods are
responsible for the increased stroke, more torque and significantly more power
output.
Just like the VM 170 B2-4T Mk.2 the VM 210 B2-4T Mk.2 is an
exceptionally smooth running engine. The immediate and smooth reaction to the
throttle, without the slightest surge, makes the VM 210 a first class power
plant, not only for glider towing, but aerobatic models up to 25 kg AUW,
without a noise problem, with well over 30 kp static thrust to catapult the
model into the air. Once there was an advertisement by Curtis Pitts with the
headline "going up in style", this describes very well the experience
when flying my big Pitts with the 210B2-4T Mk.2.
Being a
four stroke with a large capacity of 105cc per cylinder, causes a very
realistic full-size aircraft sound. If required, even with a relatively small
silencer the sound level is very low, rather like a small saloon car.
The Valach
210B2-4T Mk.2 is a four stroke OHV engine running on petrol/oil mixture. Valves
and their seats are manufactured by Honda, ensuring a very high quality. The
completely enclosed valve train reduces sound, as well as ensuring the rocker
arms are well lubricated. Due to the steel cylinder liners this engine will
have a long life.
The
processor controlled ignition allows easy starting and a exceptionally smooth
running in all throttle settings.
The
recommended RPM range for the VM-210 on the ground is 4,400-5,000. Depending
on the silencer, we have measured on the ground with the 36x14" Fiala
propeller 4500-4800 RPM.
For the VM 210B2-4T Mk.2 installed in the Pitts Special
S1-S, we use the Fiala 36x14" as this has proven to be ideal.
At 4800 RPM with the silencer #7293 we measured 35 kp static
thrust. With the 2 in 1 silencer #7290 the VM 210 turns the 36x14" Fiala
with 4500 RPM.
We had tried many oils, but recommend Valvoline SynPower 2T
oil. Our BEL-RAY H1R although excellent for two strokes, is not ideal for four
strokes, as it burns very well without deposit and not much gets past the
piston, as is the case by the Valvoline SynPower 2T.
We recommend Aral Ultimate 102, as the smell is not so
penetrating and it can be stored without deteriorating. It does not contain any
ethanol.
The fuel consumption is approximately 50% compared to that
of a two-stroke engine with the same displacement. A 1000 cc fuel tank lasts for about 15-20
minutes of flying time.
Features
- Completely encapsulated valve train
- CNC milled crankcase
- Sensational smooth running and high torque
- Spontaneous throttle response and smooth mid-range transition
- Extremely low vibration throughout the RPM range because of the four stroke principle
- Honda valves and valve seats
- Walbro carburetor
- Valach microprocessor controlled ignition with auto advance and retard
- An ignition integrated voltage converter allows the use of two LiPo cells
- VM-engines are now being produced with state of the art machines and methods
- Displacement: 210 cc
- Power: ca. 16 hp
- Bore: 52 mm
- Stroke: 50 mm
- Width including valve covers: 385 mm
- Length from engine mount to prop hub: 185 mm
- Weight: complete with ignition, two exhaust stacks, prop washer and prop bolts 6125 g
- Ignition voltage range: 4.8 - 9 V
- Idle RPM: 800
- Max RPM: 5500
- Fiala propellers 2-blade: 36x14", 36x12", 34x16"
- Static thrust with 36x14" FIALA prop: 35 kp at 4800 rpm
Eigenschaften
Manufacturer | Valach |
---|---|
Article reference | VM003 |
Zylinder | +120cc |