Subject: UAV engines
From: Paul
Date: 4/1/2001, 8:25 AM

Design Features

      High power to weight ratio. 
      Small frontal area. 
      Economical specific fuel consumption. 
      Low levels of vibration. 
      Integral lightweight belt-type reduction drive to propeller. 
      Suitable for either tractor or pusher installation. 
      50 to 1500 hours TBO (depending on duty cycle). 

  Technical Specification

  Type
                          Twin Rotor Wankel-type rotary engine.
  Displacement
                          294 cm³ per rotor.
  Power Output
                          85 BHP at 6600 engine rpm. Alternatively 134 kW at 7500 rpm or up to 160
                          kW at 8250 rpm.

# 134 Kw is 180 HP! 160 Kw is 215 HP! As I was saying a while ago the smaller Wankels
have a lot of potential for higher RPM's and even better power to weight ratios. 
I assume this last power level is the one with the 50 hour TBO. PL

  Weight 56.5 kg for full wet running installed assembly as illustrated, including 2 kW
  generator, throttle actuator, fuel pump and pressure regulator etc. Propeller not
  included.

#That is 124 pounds! PL

  Housing Cooling 
                          Water-glycol mixture with integral centrifugal pump and dual parallel fail-safe
                          thermostat system.
  Rotor Cooling
                          Air-cooling using belt-driven centrifugal fan.
  Direction of Rotation
                          Anti-clockwise (looking at face of prop flange).
  Ignition System
                          Fully duplicated 28V C.D. system with magnetic triggering. R.F. shielded.
  Carburettors
                          Twin Tillotson diaphragm type. Close-in mounting minimises possible icing.
                          Altitude mixture compensating device (ACD) is available as option. EFI
                          option.
  Fuel Feed
                          Electric pump.
  Fuel Type
                          AVGAS (100LL) or Regular grade (min 92 RON) Mogas automotive (leaded
                          or unleaded).
  Lubrication
                          Total loss via metering pump from separate tank.
  Oil Usage
                          484cm³ per hour at 6000rpm and proportional to rpm.
  Oil Type
                          Mobil Pegasus 1 or direct equivalents.
  Starting System
                          By external cranking device to prop flange. A block heater option can be fitted
                          to assist ultra-low-temperature starting.
  Generator
                          Optional direct-drive types.
  Propeller Flange
                          6 x M8 on either 75 or 100 PCD.
  Reduction Drive Option
                          Tooth belt system including heavy-duty rubber anti-torsional-vibration
                          device. Standard ratio 2.03 to 1.

 
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