3W Engines

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Probably the finest model petrol engines available in a range starting at a 28cc single cylinder 2 stroke  and finishing at an enormous 256cc 5 cyl. radial 4 stroke.
Available direct from Flair Models Ltd

Flair stock spares for these engines as well as muffler systems, ignitions and carburettor components etc.  Check the links for pop up pages on various components.
Did you know also that 3W produce a range of superb large models suitable for these engines? 
See them by clicking the "aircraft" link in the top bar.

Naming conventions
The 3W engine part numbers / descriptions include a number of alphanumeric indicators. They are as follows:

B2 Boxer twin
R2 Inline twin
B4 Boxer 4 cylinder
TS Twin spark, each cyl. has two spark plugs
F Side carburetor
R Rear carburetor
US Angled side carburetor

Examples:

B2 F B2 R B4 F
R2 US TS
Note angled carbs and twin spark plugs
B2 R TS
Note twin spark plugs
US
Note angled carb

There are also a number of options when purchasing a 3W engine.  These will determine the degree of tuning and hence the peak power level available.

Las Vegas Variants.
These are engines taken from the standard range but with increased compression and specially selected crankshafts. If maximum power is required then these options should be considered. When ordering an engine quote the appropriate Las Vegas part number for the correct number of cylinders.

3W001-1LV Part number option for single cylinder engines
3W002-2LV Part number option for twin cylinder engines
3W004-4LV Part number option for four cylinder engines

TOC Variants.
These are engines modified to the Las Vegas standard but with further working that modifies the exhaust porting and upper dead point. Even more power.

3W001-TOC Part number option for single cylinder engines
3W002-TOC Part number option for twin cylinder engines

Racing Variants, (note that the 3W warranty does not apply to these engines)
These are engines modified to the Las Vegas standard but with further working that modifies the exhaust porting and upper dead point. Even more power.

3W001-1RV Part number option for single cylinder engines
3W002-2RV Part number option for twin cylinder engines
3W004-4RV Part number option for twin cylinder engines

3W-Quique Somenzini (QS) Variants
These engines have selected parts and the pistons and cylinders are modified.
The cylinders are painted metallic red and the boxer engines are fitted with a 90 degree intake manifold made from carbon fibre. The ultimate powerhouse from 3W.
Available on the following engines:
24i, 48iB2, 50i, 75i, 75iTS, 85iB2, 100iB2, 150iB2, 150iB2TS, 200iB2TS
Just append QS to the part number for the standard engine.

Cylinder painting
For those that would like their engines to be unique the cylinders can be painted with high temperature paint in red, black, blue or gold.
The part number option to add to the basic engine order is 3W001-L and the price will apply per cylinder.