The Kolm EZ-77V3 is the logical development of the EZ-65. The steel sleeve has been taken out, Nickel-Silicon plating on the original aluminum cylinder enlarged the bore and has resulted in an increased capacity and, of course, more power with less weight.
The Kolm EZ-77V3 is very suitable for Warbirds as well as other Scale and aerobatic models. The EZ-77V3 is available with a brushless electric starter, making it a good choice for big 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 EZ-77V3 can be supplied as turning clockwise or anti-clockwise.
· Nickel-Silicon plated cylinder surfaces, far lighter than steel cylinder liners guarantee high wear resistance
· 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: |
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Displacement: |
77 cc |
Bore: |
47 mm |
Stroke: |
44 mm |
Weight incl. prop bolts: |
3,248 g |
Weight with ignition: |
3,388 g |
Weight |
3,801 g |
Weight with ignition and starter motor: |
3,941 g |
RPM range: |
850 - 7,000 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. |
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Performance data: |
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2-blade prop: |
n min |
n max |
Mejzlik 24x10 |
1.000 |
6.300 |
Mejzlik 26x8 |
1.000 |
5.700 |
Mejzlik 27x10TH |
8500 |
5.200 |
Engel 27x12 |
850 |
5.350 |
3-blade prop: |
n min |
n max |
Mejzlik 22x10 |
1.000 |
6.000 |
Mejzlik 24x10 |
1.000 |
5.300 |
SEP 21x10 |
1.400 |
5.600 |
Fiala 23x14 |
1.300 |
5.100 |
4-blade prop: |
n min |
n max |
Super Silence CFK 27x12 |
700 |
3700 |
Kolm EZ-77V4 brushless starter
- Brand: Kolm Engines
- Product Code: EZ77-03-S
- Availability: Special Order 14-30 Days
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£2,230.00
- Ex Tax: £1,858.33