WREN44 Gold Turboprop

Wren 44 Turboprop Specifications:
Practical propeller RPM range: 1,200 ~ 9,000
Turbine RPM range: 55,000 ~ 195,000rpm
Max power: 7.5hp (5.62KW) @ 6300rpm
Max torque: 8.52Nm @ 6300 rpm
Max thrust: 37.5lbs (167N) @ 7110rpm using MENZ-S 24”x 8”
Diameter: 3 3/8” - 86mm body, 4 21/64” - 110mm firewall mounting
Length: 12-13/16” – 326mm to prop driver, + prop shaft length 1 9/16” - 40mm
Overall width over exhausts: 10” - 250mm
Bulkhead mounting to prop driver plate: 6 1/3” - 160mm
Prop shaft diameter: 5/16” - 8mm, thread: M8x1
Equivalent gasoline engine: 75cc (4.6ci)
EGT 450°C @ idle, 510°C @ full power
Fuel consumption: 29ml (1 fl oz)/min @ idle, 165ml (5.6fl oz)/min @ full power.
Recommended fuel tank: 950-1500ml (32-50 fl oz)
Typical flight time: 8 ~ 12minutes

Propellers:
2-blade prop: 17”x 12” ~ 24”x 12”
3-blade prop: 17”x 12” ~ 22”x 12”
4-blade prop: 17”x 12” ~ 21”x 12”

Weight:
Engine Weight: 6lbs - 1750g
Ancillaries Weight: 7oz - 200g
Battery 2 cell LiPo: 3oz - 88g
Total airborne weight: 4lbs 7 ¾ oz - 2,038g

Price:  $US 5,050
 

WREN54 Turboprop

The World’s best Turboprop engine

The newly developed version of the world’s best turboprop engine is now available for purchase in Canada. The unit has a new exhaust and a new FOD screen intake. The prop shaft size and gears have been revamped to deliver more power.  The unit is happy with a 28" X 10" prop. We have also run a 30" X 10" at 4,500rpm.  The power levels are very considerable and are sufficient to 'prop hang' as demonstrated by Thomas Gliesner with the Airworld Turbo-raven. The engine and shaft run very cool even at the full gas generator rpm of 160,000 rpm.

Turboprop Specifications

Diameter 90mm (core engine)
Overall length 430mm
Weight excluding peripherals 2300g
Peripherals 350g
Core engine max rpm 160,000
Power turbine rated max rpm 65,000.
Exhaust gas temperature at full power 600 deg C.
Output speed from gearbox 1100 rpm to 7000 rpm
Power 6kw at 7,000 gearbox rpm.
Fuel kerosine with 3% oil in fuel.
Fuel consumption 160 ml/min

Price: $US 5,395

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