Archie wrote:
AR801R Single rotor water cooled engine with reduction drive
This, as the AR801, but is a tested and proven, lightweight, single rotor, liquid cooled engine with integrated reduction drive.
Design Features.
* Reduction drive giving high propeller efficiency.
* Low levels of vibration.
* Economical specific fuel consumption
* Suitable for either tractor or pusher installation.
* Low maintenance requirements.
* Validated durability to FAR-33 type standards.
Technical Specification
Type Wankel-type rotary, spark ignition engine.
Displacement Single rotor - 294cm³ per rotor.
Power Output 53 kW at 6000 rpm. Alternatively 68 kW at 8000 rpm.
Weight 24.5 kg as illustrated including 2kw generator. Installed weight with cooling system is around 29.5 kg.
Vibration Nominally zero (± 20 cm gm) radial imbalance. (Peak-to-mean instantaneous torque fluctuation is 4 approximately.)
Housing Cooling Water-glycol mixture with toothed-belt driven pump.
Rotor Cooling Air-cooling using belt-driven centrifugal fan.
Direction of Rotation Anti-clockwise ( looking at face of prop flange).
Ignition System Electronic CD system with magnetic triggering. 12 or 28 volt option. Fully duplicated system firing twin spark
plugs.
Carburettors Diaphragm-type. Version with altitude correction device (ACD) is option. Close-in mounting minimises possible
icing problems. Alternative EFI system option.
Exhaust Exhaust stub pipe without silencer.
Fuel Type Regular grade (min 92 RON), Mogas (leaded or unleaded) or AVGAS 100LL.
Fuel Feed Electric pump. (12V or 28V).
Lubrication Total loss via metering pump from separate tank.
Oil Type Mobil Pegasus 1 (or equivalents).
Oil Usage 224cm³ per hour at 6000 rpm and proportional to rpm.
Starting System Via external cranking at propeller hub.
Generator Alternative types giving from 0.9 to 2.0 kW.
Mounting Platform or bulkhead mounting via 4 x M8 bolts.
Reduction Drive Integrated lightweight belt driven reduction drive. Standard ratio = 1.93 with alternative ratios in range 1.6 to
2.2.
Engine
Engine Performance Data - AR801R
Wide Open Throttle Performance Data
AR801R Part Load Performance Up a Propellor Load Line
EnginePower Torque Fuel flow GAL/HR % max SFC
rpm (bhp)(lbs.ft)(cc/min) (Pts/Hr)....IMP......US...power (lb/bhp/hr)
8000 51.0 33.5 298 31.47 3.93 4.72 100 0.56
7500 42.0 29.4 237 25.02 3.13 3.76 82 0.54
7000 34.2 25.6 189 19.96 2.49 3.00 67 0.53
6500 27.4 22.1 152 16.05 2.01 2.41 54 0.53
6000 21.5 18.8 121 12.78 1.60 1.92 42 0.54
5500 16.6 15.8 101 10.66 1.33 1.60 32 0.59
5000 12.5 13.1 87 9.19 1.15 1.38 24 0.67
4500 9.1 10.6 72 7.60 0.95 1.14 18 0.76
4000 6.4 8.4 51 5.38 0.67 0.81 13 0.77
Conversion factors
Conversion Factors
1.644 lb/bhp/hr1 kg/kw/hr
1.341 bhp 1 kW
0.220 Imp Gal 1 liter
0.264 US Gal 1 liter
0.738 1 Nm
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