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Motor OS MAX 105HZ

OS18700

New product

3-5 Days

390,00 € tax incl.

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The biggest, pure helicopter engine that OS have ever made delivers the levels of torque and power demanded by top fliers for both F3C and sport applications.

 

The 15% increase in capacity offers a big increase over the .91 class engines yet still fits in mounts designed for that class. Modification to the cooling shroud is also unlikely.

 

The distinctive 'blue anodised' cylinder head distinguishes the 105HZ engines from the 91HZ series yet retains the HZ series styling overall. 

 

General internal design is very similar to the 91HZ series and draws on OS's deep experience in creating the best helicopter engines for all classes.

 

Advanatges over 120 size heli engines of other makes:

 

1) Uses same main gear ratio as .91 class engines

2) Vibration levels the same as the 91HZ so does not tend to break heli parts.

3) Easy carburettor adjustment that stays in tune.

4) Crankcase is noticeably cooler

5) More torque in the mid range

6) Velocity stack on carburettor sucks cool, undisturbed air from the fan flow.

7) Longer run time per tank

8) 105HZ with 15% nitro is similar power to a 91HZ with 30% nitro.

Specification
Displacement: 1.048 cu in (17.17 cc)
Bore: 1.442 in (29 mm)
Stroke: 1.024 in (26 mm)
Practical RPM: 2.000-16,500
Output: 3.8 ps @ 15,000 rpm
105HZ Weight: 21.03 oz (596 g)
105HZ-R Weight: 21.46 oz (608 g)

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Motor OS MAX 105HZ

Motor OS MAX 105HZ