• Kolm EZ-50V4

The Kolm EZ-50V3 is the smallest Kolm four stroke engine. It is very suitable for Warbirds as well as other Scale and aerobatic models with an all up weight of up to 11 kg.

The Kolm EZ-50V3 is available with a brushless electric starter, making it very suitable for powered gliders.

The brushless engine starter is so realistic, just like the full-size Warbirds, with a very slow turning speed, slowly accelerating, and then firing. The relatively narrow construction with the low weight allows this engine to be fitted under rather small cowls with ease.

The EZ-50V3 can be supplied as turningclockwise or anti-clockwise.

Assembled heat-treated steel crankshaft with Tungsten balance weight inserts

Conrod CNC milled from high strength steel, and have a spindled bore surface for the big end needle roller bearing

Plain bronze small end bearing

Double camshaft acting on overhead valves by pushrods

A light weight, low inertia valve train allows relatively high RPM

Crankcase CNC milled from high-strength aerospace alloy

Excellent Müller-Microprocessor-Ignition developed by Günter Müller in Germany, now made in Austria by Kolm Engines

Valves and pistons are manufactured at Kolm Engines in Austria on modern CNC machines

Walbro carburetor WT-225

Engine length adjustable by longer and shorter optional prop hubs

Rapid spares delivery and repair service from Germany by Toni Clark practical scale GmbH. 

Each and every Kolm engine is tested in the factory and run for thirty minutes. Of this test a detailed proof certificate is supplied.

 

Specifications:

Displacement:

50 cc

Bore:

42 mm

Stroke:

36 mm

Weight incl. prop bolts: 

2,210 g

Weight with ignition: 

2,350 g

Weight 
with starter motor:

2,690 g

Weight with ignition and starter motor:

2,830 g

RPM range:

1,100 - 7,500 1/min

Fuel:

1:50

Engine lubrication is by means of the well-tried two stroke mix with a 1:50 oil to petrol ratio. You may use Normal 95 octane, Super grade 98 octane or Aspen.
In Germany we recommend “Aral Ultimate 102”, as this does not contain Ethanol.

Kolm EZ-50V3 rear view

Performance data:

2-blade prop:

n min
[1/min]

n max
[1/min]

Mejzlik 22x10

1.100

6.100

Mejzlik 22x12

1.100

5.700

Mejzlik 24x10

1.100

5.400

Description: -

3-blade prop:

n min
[1/min]

n max
[1/min]

Mejzlik 22x10

1.100

5.200

Fiala 20x12

1.300

6.400

Description: -

4-blade prop:

n min
[1/min]

n max
[1/min]

-

-

-


 

 

 

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Kolm EZ-50V4

  • Brand: Kolm Engines
  • Product Code: EZ50-04
  • Availability: Special Order 14-30 Days
  • £1,490.00

  • Ex Tax: £1,241.67