honeywell powered · fuel burn: 57.7 gal avg. fuel savings over 7000 hrs (tpe331-12jr operation vs....
TRANSCRIPT
![Page 1: Honeywell Powered · Fuel Burn: 57.7 gal Avg. Fuel Savings Over 7000 hrs (TPE331-12JR Operation vs. PT6A-42A Operation 7.5 gal/hr x 7000 hrs = 52,500 gallons 52,500 gallons x $4.50/gallon](https://reader033.vdocument.in/reader033/viewer/2022051606/602648fcb19ad16fae3ce1f2/html5/thumbnails/1.jpg)
Honeywell Powered
by
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Presentation Agenda
• Who is Texas Turbine Conversions, Inc?
• Introduction to the engine
conversion for the Cessna Caravan
• Operational cost savings/analysis
• Question & Answer Period
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Texas Turbine Conversions, Inc.
• Created the company in 1997 after determining
a need for a turbine Otter to serve multiple
markets.
• TTC, Inc. holds STC engine conversion
approvals for the De Havilland DHC-3 Otter and
the Cessna 208/208B Caravan.
• Converted 43 DHC-3 Otters with the Honeywell
TPE331-10/-12 engines since 2001.
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Bobby Bishop
• President, Texas Turbine Conversions, Inc.
• ATP pilot with over 7000 hours with type ratings in the DeHavilland DHC-4 Caribou & Douglas DC-3
• Other Aircraft: MD-80, F-100, DO-328, DHC-6, DHC-3, PC-6 Porter, SC-7 Skyvan, Caravan, etc.
• Company Flight Test Pilot
• A&P/IA Mechanic
• Degree in Electrical Engineering
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Caravan Conversion
• Certified on the 208 and 208B models
• To date - Converted +40 Cessna 208/208B
Caravans for both wheel and float applications
since 2009
• Known Ice certified on both models
• FAA, EASA, and ANAC certified
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Our Customers
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Theatre of Operations
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Suriname
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Soldotna, Alaska
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Switzerland
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Saarlouis, Germany
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Sydney, Australia
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Warszawa, Poland
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Queenstown, NZ
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Africa
Arriving soon !
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Brazil
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Conversion
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TPE331 Engine Features
• 900 shp for takeoff and continuous operation (1150+ shp
thermo)
• 7000 hr TBO for all commercial operators
• 2500 hr – 5 year warranty (non pro-rated)
• Auto-start & single red line (SRL) computer standard
• Torque/Temperature limiter standard
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New Engine Installation
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New Engine Installation
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New Engine Installation
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Engine Instruments
Original Instruments
New Analog-Digital Instruments
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Caravan Start Panel Original Start Panel New Start Panel
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New Electrical Panel
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Engine Mount
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New Cowlings
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Performance
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Benefits
• Lower hourly operating cost
• Lower fuel burn for the same speed
• Provide more power and performance
• Equal or better reliability
• Clean & simple modification
• Reasonable price
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Performance
• Greatly improved performance in icing conditions
• Doubles the rate-of-climb
• 35-40 knot higher cruise speed
• 14 knots faster for the same fuel flow
• 4-6 gal/hr fuel savings for the same speed
• 40-50% Shorter Takeoff Distance
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Comparative Analysis
TPE331-12JR vs. PT6A-114A
Performance
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Comparative Analysis
TPE331-12JR vs. PT6A-114A
• Takeoff performance
• Climb performance
• Flight Profile- Same speed for fuel savings
• Flight Profile- Max cruise for time savings
• Life-Limited Parts Cost Comparison
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Takeoff Distance- Sea Level, ISA (Flaps 20, with Cargo Pod, No Wind, 9062 lbs)
50ft Obstacle 2761 ft
Distance (feet)
TPE331-12JR Engine
Ground Roll 910 ft
Ground Roll 1538 ft
PT6-114A Engine
50ft Obstacle 1651 ft
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Rate of Climb
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Cruise Speed- Same Fuel Flow
Stock Caravan
Supervan 900
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Fuel Flow- Same Cruise Speed
Stock- 310 lbs/hr
Supervan - 268 lbs/hr
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Flight Profile 10,000ft – Fuel (Same 173 KTAS Cruise Speed)
Stock Engine: Time: 66 min Fuel Burn: 59.1 gal
175 nm Leg
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Flight Profile 10,000ft – Fuel (Same 173 KTAS Cruise Speed)
Stock Engine: Time: 66 min Fuel Burn: 59.1 gal
175 nm Leg
Supervan Engine: Time: 66 min Fuel Burn: 53.2 gal
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Fuel Savings Over 7000 hrs
6 gal/hr x 7000 hrs = 42,000 gallons
42,000 gallons x $4.50/gallon = $189,000
This savings offsets the cost of the conversion
and you get the added benefit of the
increased performance.
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Flight Profile 10,000ft – Speed (Max Cruise Speed)
Stock Engine: Time: 66 min Fuel Burn: 59.1 gal
175 nm Leg
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Flight Profile 10,000ft – Speed (Max Cruise Speed)
Stock Engine: Time: 66 min Fuel Burn: 59.1 gal
175 nm Leg
Supervan Engine: Time: 59 min Fuel Burn: 59.5 gal
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Time Savings Over 7000 hrs
10% x 7000 hrs = 700 hours
Allows the aircraft to operate an additional
10% more hours for the same cost or lowers
the operational cost during the given overhaul
period.
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Life Limited Parts Cost Comparison (2011 Pricing for Honeywell and Pratt & Whitney)
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Comparative Analysis
TPE331-12JR vs. PT6A-42A
Performance
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Comparative Analysis
TPE331-12JR vs. PT6A-42A
• Takeoff performance
• Climb performance
• Flight Profile- 2,000 ft cruise fuel burn
• Flight Profile- 10,000 ft cruise fuel burn
• Life-limited parts cost
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Takeoff Distance- Sea Level, ISA (Flaps 20, with Cargo Pod, No Wind, 9062 lbs)
50ft Obstacle 2028 ft
Distance (feet)
TPE331-12JR Engine
Ground Roll 910 ft
Ground Roll 1175 ft
PT6-42A Engine
50ft Obstacle 1651 ft
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Rate of Climb- TPE331-12JR vs. PT6A-42A
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Flight Profile 2,000ft – Fuel Burn (Same 179 KTAS Cruise Speed- Standard Day)
PT6-42A Engine: Time: 60 min Fuel Burn: 77.8 gal
175 nm Leg
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Flight Profile 2,000ft – Fuel Burn (Same 179 KTAS Cruise Speed- Standard Day)
PT6-42A Engine: Time: 60 min Fuel Burn: 77.8 gal
175 nm Leg
Supervan Engine: Time: 60 min Fuel Burn: 69.5 gal
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Flight Profile 10,000ft – Fuel Burn (Same 190 KTAS Cruise Speed- Standard Day)
PT6-42A Engine: Time: 60 min Fuel Burn: 64.7 gal
175 nm Leg
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Flight Profile 10,000ft – Fuel Burn (Same 190 KTAS Cruise Speed- Standard Day)
PT6-42A Engine: Time: 60 min Fuel Burn: 64.7 gal
175 nm Leg
Supervan Engine: Time: 60 min Fuel Burn: 57.7 gal
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Avg. Fuel Savings Over 7000 hrs (TPE331-12JR Operation vs. PT6A-42A Operation
7.5 gal/hr x 7000 hrs = 52,500 gallons
52,500 gallons x $4.50/gallon = $236,250
This saving in fuel alone would pay for the hot
section and overhaul on the TPE331-12JR.
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Life Limited Parts Cost Comparison (2011 Pricing for Honeywell and Pratt & Whitney)
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Operating Cost
An operator has the ability to :
• Reduce Maintenance Reserves
• Reduce Fuel Cost
• Reduce Flight time
• Increase the payload
• Where passenger loads were restricted
due to runway lengths and altitude, your
capability is increased
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Summary
Texas Turbine Conversions, Inc.’s goal is
to take great, well-proven airplanes and
make them better by providing improved
performance and lower overall operating
costs without sacrificing reliability.