FAQ
- When will the Caravan be certified in the U.S. and Canada ?
- Will the STC cover the 208, 208A, and 208B?
- Will the STC be approved on floats?
- What is the TBO of the engine?
- How much louder is the Super Caravan than the OEM PT6 Caravan?
- Is ground school and flight training covered in the conversion cost?
- Is maintenance training included in the conversions cost?
- Are maintenance manuals included in the conversion cost?
- How much fuel does the Super Caravan burn compared to the OEM PT6 Caravan?
- What are the cycle limits of the engine?
- What is the definition of a cycle according to Honeywell?
- How much does a hot section and overhaul cost?
- What is the hourly operating cost less fuel for the Honeywell engine?
- Can I do my own conversion?
- Where can I go to get the conversion accomplished?
- When will the Caravan be certified in the U.S. and Canada ?
TTC, Inc. anticipates the following certification schedule:
Model
U.S.
Canada
Others Countries
C208/A/B on wheels
Early 2007
Mid 2007
Late 2007
C208 on floats
Late 2007
Late 2007
Early 2008
C208B on floats
Early 2008
Mid 2008
Late 2008
- Will the STC cover the 208, 208A, and 208B?
Yes, the STC will cover all models. The floats will be added to the STC after the wheel approval, so that is does not delay the wheel approval. - Will the STC be approved on floats?
The STC will not only be approved with the C-208 on floats, but it will also be approved on the C-208B on floats. The standard C-208 will be approved first with the C-208B to follow. - What is the TBO of the engine?
The factory new engines come with a 7000 hour TBO for commercial operators (FAR 135/121 or Canadian Equiv.) or a 5000 hour TBO for FAR 91 or non-commercial operators. There is one hot section at 3500 or 2500 hours respectively - How much louder is the Super Caravan than the OEM PT6 Caravan?
The Honeywell engine is definitely louder on the ground than the PT6 (probably twice as loud) at idle. From the takeoff run, climb-out, and cruise, the Honeywell is quieter than the PT6 by about 3 dB( A) (PT6 with 106” 3-blade). See City of Juneau, AK. noise test - Is ground school and flight training covered in the conversion cost?
Yes. We will meet you at the installation facility at the time of delivery to cover ground school and flight training. - Is maintenance training included in the conversions cost?
Yes. If you purchase a factory new or factory overahualed, you can send two maintenance personnel to the Honeywell (Garrett) facility in Phoenix , AZ., for a two week Prop Line Maintenance Course. Room and board is not included. - Are maintenance manuals included in the conversion cost?
Yes. You will be provided with paper Honeywell maintenance and illustrated parts manuals, Hartzell maintenance manual, and a TTC, Inc. maintenance manual supplement. - How much fuel does the Super Caravan burn compared to the OEM PT6 Caravan?
The TPE331-10 Otter burns approximately 5 gals/hr less than the PT6-34 Otter for the same speed/horsepower. Initial flight test data shows that the TPE331-12JR SuperVan is burning around 3 gal/hr less than the OEM Caravan under similar conditions. The fuel specifics calculations on the PT6A-114A engine show that the fuel burn would be higher than what the Caravan Flight Manual shows. We saw higher fuel burns with the PT6, but ours was a high time engine. TTC, Inc. will continue to update the performance section on the website as more flight testing is completed.(See FF chart & (See fuel burn calculations page). - How much faster is the SuperVan 900 than the OEM Caravan?
In preliminary flight testing, we have seen cruise speeds up to 30 knots faster at 10,000 feet than the flight manual numbers for the same conditions. The aircraft will cruise 200+ knots TAS at 10,000 in a max cruise configuration. (See cruise chart) - What is the climb performance like on the SuperVan 900 on a 35°C/95°F day?
The SuperVan 900 has shown that it has almost double the rate of climb of the OEM Caravan for the same operating conditions. It takes just under 13 minutes to get to 14,000 MSL on a 35°C/95°F day at a 9000lb. takeoff weight. (See climb chart) - What are the cycle limits of the engine?
All factory new engines have the following life limited components:
Item
Cycle Life -10
Cycle Life -12JR
1st Stage Impeller
30,000
30,000
2nd Stage Impeller
n/a
30,000
Seal Plate
20,000
30,000
1st Stage Turbine Wheel
20,000
20,000
2nd Stage Turbine Wheel
15,000
15,000
3rd Stage Turbine Wheel
6,000
12,000
- What is the definition of a cycle according to Honeywell?
Any operating sequence involving engine start, aircraft takeoff and landing, and engine shutdown. - How much does a hot section and overhaul cost?
Honeywell (Garrett) offers cap (or maximum) hot sections and cap overhauls. The pricing is dependent upon being a commercial FAR121/135 or non-commercial FAR 91 operator. (This information is being updated) - What is the hourly operating cost less fuel for the
Honeywell?
The hourly operating cost varies upon which TBO program and can vary between $32/hr and $45/hr. (This information is being updated) - Can I do my own conversion?
No. TTC, Inc. has a goal to provide the customer with a high quality final product, and we feel that controlling the installation process through installation facilities is the only way to truly guarantee that quality. - Where can I go to get the conversion accomplished?
Currently, TTC, Inc., in Celina , Texas and Kal-Air Repair, Ltd., in Vernon , B.C., Canada , are the only authorized installation facilities. We are working on establishing three other installation facilities across the U.S. and Canada - How much does the conversion cost?
TTC, Inc. is offering the first five positions for $550,000 installed with a factory new Honeywell TPE331-12JR engine. The customer can keep their firewall forward or TTC, Inc will take the firewall forward on exchange credit. The credit is determined by the time remaining on the components on a case by case basis. All conversions come standard with a parallel/series start system. The optional auto-start/torque & temp limiting system is available at an additional cost of $25,000. A deposit of $25,000 is required to secure a conversion position. The conversion does not include match painting. For more details, contact TTC, Inc.
