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3W-COMPETITION SERIE

We from 3W-Modellmotoren are proud to present a new range of engines, being developed in close cooperation with top international aerobatic pilots. The strong requirements flying sophisticated aerobatic maneuvers had been met.

All parts are selected, pistons,cylinders and carburettor are modified. Cylinders painted: red, 2-cyl. boxer engines with carbon-fiber 90?intake manifold.

ignition system prepared for direct connetction to 2 cell LiPo batterys without using voltage regulator

if you are planning to buildt our engines into any other vehicle than a model airplane please contact 3W Germany directly

you can choose a decompression valve for enginges with cylinders bigger than 2.90 cu.in
notice the starting procedure
Name Techn. specifications Infos
3W-28i CS
  • Cylinder capacity: 1.74 cu.in
  • Power: 3,6 HP; 2,65 kW
  • Bore dia.: 1.42 in
  • Stroke: 1.10 in
  • Speed range: 1500 - 8500 rpm
  • Weight: 2.67lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 6x10; 18x8; 18x10; 20x8
    Propeller 3-bladed / à 3 pales: 16x8; 16x10
  • find first photos in our 3W stuff gallery here

 

 

 

 
3W-55i CS
  • Cylinder capacity: 3.36 cu.in
  • Power: 5,8 PS; 4.27 kW
  • Bore dia.: 1.77 in
  • Stroke: 1.38 in
  • Speed range: 1300 - 8500 rpm
  • Weight: 4.27 lb incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 22x8; 22x10; 22x12; 24x8
    Propeller 3-bladed / à 3 pales: 19x12; 20x8; 20x10; 22x8

 

 

 

 
3W-55i US CS
  • Cylinder capacity: 3.25 cu.in
  • Power: 5,8 PS; 4.27 kW
  • Bore dia.: 1.73 in
  • Stroke: 1.38 in
  • Speed range: 1300 - 8500 rpm
  • Weight: 4.27 lb incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 22x8; 22x10; 22x12; 24x8
    Propeller 3-bladed / à 3 pales: 19x12; 20x8; 20x10; 22x8

 

 

 

 
3W-56i B2 CS
  • Cylinder capacity: 3.48 cu.in
  • Power: 6,0 HP; 4.4 kW
  • Bore dia.: 1.42 in
  • Stroke: 1.10 in
  • Speed range: 1500 - 8500 rpm
  • Weight: 4.51lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 20x12; 22x10
    Propeller 3-bladed / à 3 pales: 20x10; 21x10; 19x12
  • find first photos of the classic version in our 3W stuff gallery here

 

 

 

 

 
3W-80 XI
  • Cylinder capacity: 4.76 cu.in
  • Power: 9.0 HP; 6.6 kW
  • Bore dia.: 1.97 in
  • Stroke: 1.57 in
  • Speed range: 1100-8500 rpm
  • Weight: 5.2 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 26x10; 26x12; 28x10
    Propeller 3-bladed / à 3 pales: 22x12; 23x12; 24x10

 

 

 

 

 

images
coming soon
3W-80 XI TS
  • Cylinder capacity: 4.76 cu.in
  • Power: 9.5 HP; 7.0 kW
  • Bore dia.: 1.97 in
  • Stroke: 1.57 in
  • Speed range: 1100-8500 rpm
  • Weight: 5.5 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V double ignition
  • Propeller 2-bladed / à 2 pales: 26x10; 26x12; 28x10
    Propeller 3-bladed / à 3 pales: 22x12; 23x12; 24x10

 

 

 

 

 

images
coming soon
3W-85 XI
  • Cylinder capacity: 45.11 cu.in
  • Power: 9,8 HP; 7,21 kW
  • Bore dia.: 2.0 in
  • Stroke: 1.61 in
  • Speed range: 1100-8500 rpm
  • Weight: 5.28 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V double ignition
  • Propeller 2-bladed / à 2 pales: 26x10; 26x12; 28x10
    Propeller 3-bladed / à 3 pales: 22x12; 23x12; 24x10
 
3W-85 XI TS
  • Cylinder capacity: 45.11 cu.in
  • Power: 10,5 HP; 7,72 kW
  • Bore dia.: 2.0 in
  • Stroke: 1.61 in
  • Speed range: 1100-8500 rpm
  • Weight: 5.28 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V double ignition
  • Propeller 2-bladed / à 2 pales: 26x10; 26x12; 28x10
    Propeller 3-bladed / à 3 pales: 22x12; 23x12; 24x10
 
3W-110i B2 CS
  • Cylinder capacity: 6.61 cu.in
  • Power: 12.8 HP; 9.41 kW
  • Bore dia.: 1.77 in
  • Stroke: 1.26 in
  • Speed range: 1200-8500 rpm
  • Weight: 6.72 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 26x12; 28x10; 28x12; 30x10; 30x8
    Propeller 3-bladed / à 3 pales: 24x10; 24x12; 25x12; 26x12

 

 

 

 
3W-112i B4 CS
  • our new four cylinder engine / first pictures here
  • Cylinder capacity: 6.96 cu.in
  • Power: 13.0 HP; 9.56 kW
  • Bore dia.: 1.42 in
  • Stroke: 1.02 in
  • Speed range: 7000 rpm
  • Weight: 8.53lbs incl. ignition
  • Crankshaft: 5 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 28x12; 28x10; 26x14; 30x10
    Propeller 3-bladed / à 3 pales: 25x12; 26x12

 

 

 

 

 
3W 157 XI B2 CS
  • Cylinder capacity: 9.58
  • Power: 18 PS / HP 13,23 KW
  • Bore dia.: 1.97
  • Stroke: 1.57
  • Speed range: 1100-8500 rpm
  • Weight: 9.05 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 32 x 12; 32 x 14; 33 x 10
    Propeller 3-bladed / à 3 pales: 29 x 12; 30 x 12;

 

 

 
3W 157xi B2 TS CS
  • Cylinder capacity: 9.58
  • Power: 18,5 PS / HP 13,60 KW
  • Bore dia.: 1.97
  • Stroke: 1.57
  • Speed range: 1100-8500 rpm
  • Weight: 9.05 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V 2x Boxer Ignition
  • Propeller 2-bladed / à 2 pales: 32 x 12; 32 x 14; 33 x 10
    Propeller 3-bladed / à 3 pales: 29 x 12; 30 x 12;

 

 

 
3W 170 XI B2 CS
  • Cylinder capacity: 10.37
  • Power: 18,8 PS / HP 13,82 KW
  • Bore dia.: 2.0
  • Stroke: 1.61
  • Speed range: 1100-8500 rpm
  • Weight: 9.05 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 32 x 12; 32 x 14; 33 x 10
    Propeller 3-bladed / à 3 pales: 29 x 12; 30 x 12;
 
3W 170 XI B2 CS TS
  • Cylinder capacity: 10.37
  • Power: 19,7 PS / HP 14,48 KW
  • Bore dia.: 2.0
  • Stroke: 1.61
  • Speed range: 1100-8500 rpm
  • Weight: 9.05 lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V 2x Boxer Ignition
  • Propeller 2-bladed / à 2 pales: 32 x 12; 32 x 14; 33 x 10
    Propeller 3-bladed / à 3 pales: 29 x 12; 30 x 12;
 
3W-210i B2 TS CS
  • Cylinder capacity: 12,28 cu.in
  • Power: 21,00 PS; 15,44 kW
  • Bore dia.: 2.16 in
  • Stroke: 1.73 in
  • Speed range: 1000 - 7500 rpm
  • Weight: 10.51lbs incl. ignition
  • Crankshaft: 3 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales: 34 x 12; 36 x 10; 36 x 12
    Propeller 3-bladed / à 3 pales: 32 x 10; 32 x 12

 

 

 
3W-220i B4 CS
  • Cylinder capacity: 13.22 cu.in
  • Power: 22,8 HP; 16,76 kW
  • Bore dia.: 1.77 in
  • Stroke: 1.377 in
  • Speed range: 1000-7500 rpm
  • Weight: 12.61lbs incl. ignition
  • Crankshaft: 5 Ball bearings
  • Connecting rod: Needle bearings on both ends
  • Gasoline-Version: 1 : 50 - 1 : 80 Mix
  • Ignition: 6,0 V
  • Propeller 2-bladed / à 2 pales:: 34 x 10; 35 x 10; 35 x 12; 36 x 10;
    Propeller 3-bladed / à 3 pales: 2 x 14; 30 x 12; 32 x 12;

 

 

 
 
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