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3743 Airport Drive • Denison TX 75020
Tel: 903-786-5050 • Fax: 903-786-5053
email: info@TexasTurbines.com

 
 

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Super Otter FAQ

1. Is the Garrett Otter certified in the U.S. and Canada ?
2. What is the TBO of the engine?
3. What is the total fuel capacity? Are there extended range tanks available?
4. Should we overhaul the fuel bladders when we convert?
5. How much louder is the Garrett Otter than the PT6 Otter?
6. Is the propeller included in the conversions cost?
7. Is ground school and flight training covered in the conversion cost?
8. Is maintenance training included in the conversions cost?
9. Are maintenance manuals included in the conversion cost?
10. How much fuel does the Garrett Otter burn compared to the PT6 Otter or Walter?
11. What are the cycle limits of the engine?
12. What is the definition of a cycle according to Garrett?
13. How much does a hot section and overhaul cost?
14. What is the hourly operating cost less fuel for the Garrett?
15. What floats can I run on the Garrett Otter?
16. Can I do my own conversion?
17. Where can I go to get the conversion accomplished?
 

1. Is the Garrett Otter certified in the U.S. and Canada?

The Garrett Otter is certified in both the U.S. and Canada on wheels, wheel-skis, and floats.

2. What is the TBO of the engine?

The factory overhauled engines come with a 7000 hour TBO for commercial operators (FAR 135/121 or Canadian Equiv.) or a 5000 TBO for FAR 91 or non-commercial operators. There is one hot section at 3500 or 2500 hours respectively.

3. What is the total fuel capacity? Are there extended range tanks available?

The Garrett Otter has the same fuel capacity as the standard Otter, because the fuel system operates essentially the same as the original Otter. The total capacity is 213 U.S. gal. Kal-Air Repair, Ltd. (one of our authorized installation centers) offers an STC'd extended range tank system that provides an additional 38 U.S. gal.

4. Should we overhaul the fuel bladders when we convert?

We recommend that everyone overhaul their fuel bladders and sending units, because they are not covered under the conversion and will typically weep fuel after jet fuel is used. We do replace all fuel tank gaskets and dyna-seals as part of the conversion.

5. How much louder is the Garrett Otter than the PT6 Otter?

The Garrett is definitely louder on the ground than the PT6 (probably twice as loud) at idle. From the takeoff run, climb-out, and cruise, the Garrett is quieter than both the PT6 and the Walter (with 106" 3-blade). See City of Juneau, AK. noise test

6. Is the propeller included in the conversion cost?

Yes. The conversion cost includes everything to put the airplane to work, except match painting and shipping of the kit.

7. 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.

8. Is maintenance training included in the conversions cost?

Yes. If you purchase a factory overhauled engine, 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.

9. Are maintenance manuals included in the conversion cost?

Yes. You will be provided with paper Garrett maintenance and illustrated parts manuals, Hartzell maintenance manual, and a TTC, Inc. maintenance manual supplement.

10. How much fuel does the Garrett Otter burn compared to the PT6 Otter or Walter?

The Garrett Otter burns approximately 5 gals/hr less than the PT6 and about 10 gals/hr less than the Walter for the same speed and configuration (i.e. STOL kit, floats, etc.). See fuel burn calculations page.

11. What are the cycle limits of the engine?

All factory overhauled engines have the following life limited components:

ItemCycle Life
1st Stage Impeller 30,000
Seal Plate 20,000
1st Stage Turbine Wheel 20,000
2nd Stage Turbine Wheel 15,000
3rd Stage Turbine Wheel 6,000

12. What is the definition of a cycle according to Garrett?

Any operating sequence involving engine start, aircraft takeoff and landing, and engine shutdown.

13. How much does a hot section and overhaul cost?

Honeywell (Garrett) offers cap hot sections and cap overhauls. The pricing is dependent upon being a commercial or non-commercial operator. (This information is being updated)

14. What is the hourly operating cost less fuel for the Garrett?

The hourly operating cost varies upon which TBO program and can vary between $32/hr and $45/hr. (For more detailed information see engine operating cost breakdown.)

15. What floats can I run on the Garrett Otter?

The following floats are shown as compatible with the Garrett Otter:

StraightAmphibs
EDO 7170  
EDO 7490 EDO 7490
EDO 7850  
INTAERO 8100  
Wipline 8000 Wipline 8000

 

16. 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.

17. Where can I go to get the conversion accomplished?

Currently Recon Air is the only authorized installation facility outside of Texas Turbines. Presently, we are working on establishing another facility in eastern Canada .