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Supervan 900 Power Plant

Are you tired of a 3600 hour TBO? Do you want your Caravan to perform? Texas Turbines has the ultimate in TBO, performance, quality, and fuel consumption. We can install a Honeywell TPE331-12JR engine in your Caravan that will give you exactly what you need. Our conversion will allow your airplane to take-off shorter, climb quicker, cruise faster for the same fuel burn, or cruise farther for the same speed….. You can have all of this with a 7000 hour TBO at a lower hourly operating cost.

Knowing that this aircraft is flown throughout the world in some very remote places, we have selected an engine and propeller combination with a well-proven history. The conversion uses a flat-rated 900 hp Honeywell engine. Flat-rating an engine lengthens the life while holding rated power at higher altitudes and higher temperatures. Also, Honeywell engines are direct drive engines allowing for instantaneous power response with no spool-up time. The four-blade Hartzell prop coupled with slower turning 900 shp engine equates to a quiet aircraft with great static thrust for takeoff, quicker climb, and faster cruise. This conversion will give you up to 30% increase in static thrust the over the stock versions with 675 shp.

 

click on the chart to download PDF
Supervan 900   Specifications vs. OEM
Specification Standard OEM Grand Caravan* Supervan 900
Engine PT6A-114A TPE331-12JR
Horsepower 675 shp flat-rated 900 shp flat-rated
Torque 1865 2971 ft-lbs
TBO 3600 hrs 7000 hrs
Max gross weight 8750 lbs 9062 lbs *
Std. empty weight (wheels) 4575 lbs 4675 lbs
Useful Load (wheels) 4175 lbs 4387 lbs *
Climb (ISA- g.w.) 975 ft/min 1510 ft/min
Max Cruise (10,000 ft.) 175 kts 198 kts
Max Cruise fuel flow 396 lbs/hr 435 lbs/hr
Takeoff (ground roll) 1405 ft. 1054ft
Takeoff (50' obstacle) 2420 ft 1875 ft
Landing (wheels)  950 ft 950 ft
Power loading 13 lbs/shp 10.1 lbs/shp
Stall Speed- flaps 61 kts 61 kts
Endurance (max cruise- standard fuel) 5.6 hrs 6.2 hrs
Range (max cruise- standard fuel) 915 nm 1000 nm
* With gross weight increase kit installed
Sea Level - Standard day
Power output 1000 shp Takeoff
970 shp Continuous
Flat Rating 900 shp up to 35° C
SFC 0.553
ESFC 0.523
RPM gas gen 41,730
shaft output 1,591
Rotation ccw from rear
Weight 415 lbs
PWR/WT ratio 2.17
Pressure Ratio 10.2
Airflow 8.11 lb/sec
Fuel Jet A, Jet B, Jet A-1, JP-4, JP-5, JP-8
Oil Mil-L-23699, Type III
Mil-L-7808, Type II
Electrical 24 vdc, 16.2 amp
Start capability SL-20,000 ft
-40F +130F
Operational limits SL-35,000ft
Compressor bleed 10% (max)

The conversion includes the following components:

  • New Honeywell TPE331-12JR engine
  • New Hartzell 110” four-blade, reversible, full-feathering propeller
  • New engine mount
  • New starter/generator
  • New engine instruments (except oil press. and fuel flow)
  • New engine cowlings
  • New Concorder RG390 sealed batteries 
  • New oil cooler
  • New electronic generator control unit
  • New electronic alternator control unit
  • New electrical junction box, and modified electrical system
  • New hardware and misc. components

The kit does not include paint.

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