 |

Shown here with external alternator, hydraulic propeller
governor and air guide baffles. |
Rotax 914 UL DCDI 115HP
- 4-stroke turbocharged engine specially developed for
recreational aircraft. Also exists in a certified version: Rotax
914 F.
- 4 horizontally opposed cylinders, "boxer" configuration
- Free air cooled cylinders, liquid cooled cylinder heads with
integrated pump and expansion tank
- Dry sump forced lubrication with integrated pump and
separate oil tank
- 8 valves, automatic adjustment by hydraulic valve tappet
- Dual Capacitor Discharge Ignition (DCDI) with RFI noise
suppression
- Garrett turbocharger with automatic waste gate control
- Two Bing Constant Depression (CD) carburetors
- Two electric fuel pumps
- Integrated electric starter
- Integrated reduction gearbox, ratio of 2.43:1 with optional
slipper clutch
- Various liquid and oil radiators available
- Many option available such as: Vacuum pump, external
alternator, hydraulic propeller governor
- Operates on automotive fuel with a minimum octane rating of
91 (Canadian standards)
- Time Between Overhauls (TBO): 1200 hours*
Performance
|
Maximum Power
(5 minutes) |
115HP / 84.5KW @ 5800
RPM |
| Maximum Power (sustained) |
100HP / 73.5KW @ 5500
RPM |
| Maximum Torque |
106ft-lb / 144NM @
4900 RPM |
Combustion Chambers
|
| Bore |
3.13" /
79.5mm |
| Stroke |
2.40" /
61.0mm |
| Displacement |
73.91cu.in. / 1211.2cm³ |
| Compression ratio |
9.0:1 |
Weight
|
| Engine with Carburetors |
141.1lbs / 64.0Kg |
| Exhaust System |
8.8lbs / 4.0Kg |
| Air Filter |
0.4lbs / 0.2Kg |
| Liquid Radiator |
2.2lbs / 1.0Kg |
| Oil Radiator |
1.1lbs / 0.5Kg |
| Engine truss assembly |
4.4lbs / 2.0Kg |
| Regulator-Rectifier |
0.2 lbs / 0.1Kg |
| Electric Fuel Pumps |
1.5lbs / 0.7Kg |
| External Alternator |
6.6lbs / 3.0Kg |
| Installed Weight |
166.4lbs / 75.5Kg |
| Weight/Power Ratio |
1.45lbs/HP / 0.88Kg/KW |
Documentation
|
| Information Sheet |
914info.pdf
/ 406Kb /
Adobe Acrobat format |
| Performance Graphs |
914perf.pdf
/ 14Kb /
Adobe Acrobat format |
| Technical Drawings |
914draw.pdf
/ 311Kb /
Adobe Acrobat format |
| Manuals |
Visit
www.rotax-aircraft-engines.com |
| Service Documentation |
Visit
www.rotax-owner.com |
|