# TCDS A8SO: Aviat Aircraft Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Aviat Aircraft Inc.
- Revision: 28
- Revised: February 18, 2026
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Registered aircraft: 227, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/9c/d9/9cd9dec2951f4a64cf2ede22b6a4df2f95605f258697682205338afbdb85dabd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140836265320260304194226.0001
- Page: https://openairdocs.org/tcds/A8SO

## Models (7)

As the data sheet lists them.

- S-2
- S-2B
- S-2A
- S-2C
- S-2S
- S-1T
- S-1S

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 3 4 5 6 7 8 9 10 11 12 
Rev. No. 28 25 25 24 27 25 25 25 24 26 24 25 
 
 DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
A8SO 
Revision 28 
Aviat Aircraft, Inc. 
S-1S 
S-1T 
S-2 
       S-2A  
S-2S 
S-2B 
S-2C 
18 FEB 2026 
 
TYPE CERTIFICATE DATA SHEET NO. A8SO 
 
This data sheet which is part of Type Certificate No. A8SO prescribes conditions and limitations under 
which the product for which the type certificate was issued meets the airworthiness requirements of the 
Federal Aviation Regulations. 
 
Type Certificate Holder  Aviat Aircraft, Inc.   
   672 South Washington Street 
   Afton, Wyoming  83110 
 
Type Certificate Ownership Record Christen Industries transferred ownership of Type Certificate A8SO to Aviat, 
Inc. on April 4, 1991. 
 
Aviat, Inc. transferred ownership of Type Certificate A8SO to White 
International, LTD. on December 3, 1992. 
 
White International, LTD. transferred ownership of Type Certificate A8SO to 
Sky International, Inc. on January 10, 1996. 
 
Sky International, Inc. transferred ownership to Aviat Aircraft, Inc., on 
February 27, 2012 
 
I - Model S-1S, 1POLB (Acrobatic Category), Approved 13 February 1973. 
 
Engine Lycoming IO-360-B4A with Bendix Injector No. RSA-5AD1 (for serial 
numbers up to and including 1-0034, plus S/N 1-0060) 
Lycoming AEIO-360-B4A engine (for S/N 1-0035 and up, except S/N 1-0060) 
 
Fuel   100/130 minimum grade aviation gasoline 
 
Engine Limits  180 HP @ 2700 RPM for all operations 
 
Propeller and  Sensenich, fixed-pitch, 76EM8-0-56, diameter 76 in., no cutoff permitted. 
Propeller Limits  Prop. Pitch vs. Allowable Static RPM      * at 28.5 inch blade station. 
Prop Pitch * Minimum Maximum 
56" 2350 2450 
57" 2325 2425 
58" 2300 2400 
59" 2275 2375 
60" 2250 2350 
61" 2225 2325

A8SO Page 2 of 12 
I - Model S-1S, 1POLB (cont’d) 
 
   S.L. Static RPM limits at full throttle.  No additional tolerance permitted. 
 
Propeller Spinner Pitts 1-602 required 
 
Avoid continuous operation between 2150 and 2350 RPM 
 
Airspeed Limits (CAS) V NE (never exceed) 203 MPH (176 kts.) 
   V A (maneuvering) 154 MPH (134 kts) 
   V NO (maximum structural cruising) 154 MPH (134 kts) 
   (For acrobatic maneuver entry speeds see Airplane Flight Manual) 
 
C.G. Range  (+65.00 to +66.00) at 1150 pounds 
   (+64.00) at 1115 pounds or less 
   (+67.00) at 970 pounds or less 
   Straight line variation between points given 
 
Datum   65.06 inches forward of lower wing leading edge 
 
Leveling Means  Upper fuselage longerons at cockpit 
 
Maximum Weight 1150 pounds 
 
Maximum Baggage 15 pounds (@ +113.50) 
 
Number of Seats  One (@ +91.50) 
 
Fuel Capacity  20 U.S. gallons (@ +59.63) (19 U.S. gallons usable) 
   See Note 1 for unusable fuel 
 
Oil Capacity  8 quarts (@ +33.26) (4 quarts usable) 
 
Control Surface  Ailerons    UP 25   2     DOWN 23    2 
Movements  Elevator    UP 25   2     DOWN 25    2 
   Elevator  Tab (elevator neutral) UP 7.5   2    DOWN 42    2 
   Rudder     LEFT 30   2 RIGHT 30   2 
 
Manufacturer’s  Pitts Aviation Enterprises, Homestead, Fla. 001 
Serial Nos.  Aerotek  1-0001 through 1-0064 
   Aviat Aircraft Inc. 1-0065 and up  
 
II - Model S-1T, 1POLB (Acrobatic Category), Approved 24 July 1975, S/N 1007 and up approved  
September 15, 1982. 
 
Engine   Lycoming AEIO-360-A1D with Bendix Fuel Injector No. RSA-5AD1 
   (S/N 002 only)  Lycoming AEIO-360-A1E with Bendix Fuel Injector No. 
   RSA-5AD1 (S/N 1007 and up). 
Fuel   100/130 minimum grade aviation gasoline 
 
Engine Limits  200 HP @ 2700 RPM 
 
Propeller and  Hartzell HC-C2YK-4CF/FC7666A-2 Constant Speed Pitch:  High 28   1/2 ,  
Propeller Limits  low 13 ½ at 30” station, 72” minimum diameter, 74” maximum diameter.   
   Avoid continuous operation between 2000 and 2350 RPM, avoid continuous  
operation (red arc) above 2600 RPM in aerobatic flight and full throttle level 
flight.

A8SO Page 3 of 12 
II - Model S-1T, 1POLB (cont’d) 
 
Propeller Spinner Hartzell 836-60 required 
    
Propeller Governor Hartzell F6-3A  (S/N 002 only) 
   Hartzell F6-58Z (S/N 1007 and up) 
 
Airspeed Limits (CAS) V NE (never exceed) 203 MPH (176 kts) 
   V A (maneuvering) 154 MPH (134 kts) 
   V NO (maximum structural cruising) 154 MPH (134 kts) (For acrobatic  
   maneuver entry speeds see Airplane Flight Manual) 
 
C.G. Range  (+60.37 to +62.20) at 1150 pounds 
   (+59.35) at 1115 pounds or less 
(62.48) at 970 pounds or less 
   Straight line variation between points given. 
 
Datum   60.56 inches forward of lower wing leading edge 
 
Leveling Means  Upper fuselage longerons at cockpit 
 
Maximum Weight 1150 pounds 
 
Number of Seats  One (@ +90.46) 
 
Maximum Baggage 15 pounds (@ + 113.50) 
 
Fuel Capacity  20 U.S. gallons (@ +59.50), (19 U.S. gallons usable) See Note 1 for unusable  
   fuel. 
 
Oil Capacity  8 quarts (@ +29.26) (4 quarts usable) 
 
Control Surface  Ailerons    UP 25  + 2    DOWN 25  + 2 
Movements  Elevator    UP 25  + 2    DOWN 25  + 2 
   Elevator  Tab (elevator neutral) UP 7.5  + 2    DOWN 42  + 2 
   Rudder    LEFT 30  + 2   RIGHT 30  + 2 
 
Manufacturer’s  Pitts Aviation Enterprises, Homestead, FL 
Serial Numbers  002 
   Aerotek, Inc, Afton, Wyoming 1001 - 1012 
   Pitts Aerobatics 1013 – 1049 
   Christensen Industries 1050 – 1056 
   Aviat Inc.1057 – 1060 
   Aviat Aircraft Inc. 1061 and up 
 
III - Model S-2, 2 POLB (Acrobatic Category), Approved 8 March 1971 
 
Engine   Lycoming IO-360-B4A with Bendix Fuel Injector No.  
   RSA-5AD1 
 
Fuel   100/130 minimum grade aviation gasoline 
 
Engine Limits  180 HP @ 2700 RPM for all operations 
 
Propeller &  Sensenich, fixed-pitch, 76EM8-0-61, diameter 
Propeller limits  76 inches no cutoff permitted. 
 
III - Model S-2, 2 POLB (cont’d)

A8SO Page 4 of 12 
 
   Prop. Pitch vs. Allowable Static RPM       
                
Prop Pitch * Minimum Maximum 
56" 2350 2450 
57" 2325 2425 
58" 2300 2400 
59" 2275 2375 
60" 2250 2350 
61" 2225 2325 
                          * at 28.5 inch blade station. 
 
   S.L. Static RPM limits at full throttle.  No additional tolerance permitted. 
 
Avoid continuous operation between 2150 and 2350 RPM. 
 
Propeller Spinner Pitts 2-6002 required 
 
Airspeed Limits (CAS) V NE  (never exceed) 203 MPH (176 kt.) 
   V A    (maneuvering) 154 MPH (134 kt.) 
   V NO  (maximum structural cruising)  154 MPH (134 kt.) 
   (For acrobatic maneuver entry speed see Airplane Flight Manual) 
 
C.G. Range  (+95.58 to +96.50) at 1500 pounds 
   (+92.35) at 1350 pounds or less 
   (+97.12) at 1440 pounds or less 
   Straight-line variation between points given 
 
Datum   97.81” forward of lower wing leading edge 
 
Leveling Means  Upper fuselage longerons at rear cockpit 
 
Maximum Weight 1500 pounds 
 
Number of Seats  2 (1 @ +108.61), (1 @ +136. 59) 
 
Maximum Baggage 20 pounds (@ +157.81) 
 
Fuel Capacity  24 U.S. gallons (@ +80.81), (23 U.S. gallons usable) 
   See Note 1 for unusable fuel 
 
Oil Capacity  8 quarts (@ +50.81) (4 quarts usable) 
 
Control Surface  Ailerons         UP 27    2 DOWN 20   2 
Movements  Elevator         UP 27   .75 DOWN 27   .75 
Elevator Tab (elevator neutral)  UP   7     2 DOWN 19   2 
   Rudder          LEFT 30   .75   RIGHT 30  .75 
 
Manufacturer’s  Pitts Aviation Enterprises, Homestead, Fla 
Serial Nos.     1001 
   Aerotek, Inc., Afton, Wyoming 
   2001 and up 
 
 
 
 
IV - Model S-2A, 2POLB (Normal and Acrobatic Category), Approved 11 Jun 1971.

A8SO Page 5 of 12 
 
The Model S-2A (S/N 1001, 2001 thru 2205) is identical to the Model S-2 except for (1) 200 HP engine,  
(2)  constant speed propeller and associated control, and (3) normal category weight and C.G. range. S/N 
2206 and up are further modified by (1) Lycoming AEIO-360-A1E engine (2) 3” longer landing gear, and 
(3) 2” wider fuselage in forward cockpit area.  S/N 2219, 2231 and up are further modified by 
incorporation of symmetric ailerons and aerodynamic counter balances. 
 
Engine   Lycoming IO-360-A1A with Bendix Fuel Injector No. RSA-5AD1 and as  
   modified by  STC SE469SO (Serial Numbers 1001, 2001 through 2085). 
 
   Lycoming AEIO-360-A1A with Bendix Fuel Injector No. RSA-5AD1 (Serial   
   Numbers 1001, 2001 and up). 
 
Lycoming AEIO-360-A1E with Bendix Fuel Injector No. RSA-5AD1 (Serial 
Numbers 2206 and up). 
 
Fuel    100/130 minimum grade aviation gasoline 
 
Engine Limits  200 HP @ 2700 RPM 
 
Propellers  Hartzell HC-C2YK-4AF/FC7666A-2 or HC-C2YK-4CF/FC7666A-2 Constant 
Speed 
Propeller Limits    Pitch:  High 24   1/2 , low 13 1/2 at 30” station, 72” minimum diameter,  
74” maximum diameter.  Avoid continuous operation between 2000 and 2350 
RPM.  Avoid continuous operation (red arc) above 2600 RPM in aerobatic flight 
and full throttle level flight. 
 
Propeller Spinner Hartzell 836-60 required 
 
Propeller Governor Hartzell F6-3A (S/N 1001, 2001 through 2205) 
   Hartzell F6-58Z (S/N 2206 and up) 
 
Airspeed Limits (CAS) V NE (never exceed) 203 MPH (176 kt.) 
   V A (maneuvering) 154 MPH (134 kt.) 
   V NO (maximum structural cruising) 154 MPH (134 kt.) 
   (For acrobatic maneuver entry speeds see Airplane Flight Manual) 
 
C.G. Range  Normal Category: 
 (+94.50 to +96.13) at 1575 pounds 
        (+92.35) at 1350 pounds or less 
(+97.50) at 1472 pounds or less 
 
   Acrobatic Category: 
   (+95.58 to +96.50) at 1500 pounds 
   (+92.35) at 1350 pounds or less 
   (+97.12) at 1440 pounds or less 
   Straight line variation between points given 
 
Datum   97.81” forward of lower wing leading edge 
 
Leveling means  Upper fuselage longerons at rear cockpit 
 
Maximum weight  Normal category 1575 pounds 
   Acrobatic category 1500 pounds 
 
Number of seats  2 (1 @ +108.61), (1 @ +136.59) 
 
Maximum baggage 20 pounds (@ + 157.81)

A8SO Page 6 of 12 
IV - Model S-2A, 2POLB (cont’d) 
 
Fuel Capacity  24 U.S. gallons (@ + 80.81), (23 U.S. gallons usable)      
   (See note 1 for unusable fuel) 
 
Oil Capacity  8 quarts (@ + 54.81) (4 quarts usable) 
 
Control surface  Ailerons (unsymmetrical)   UP 27   2     DOWN 20   2 
Movements  Ailerons (symmetrical)  UP 25   2     DOWN 25   2 
   Elevator    UP 27   .75   DOWN 27   .75 
   Elevator Tab (elevator neutral) UP 7   2      DOWN 19   2   
   Rudder    LEFT 30   .75  RIGHT 30  .75 
 
Manufacturer’s  Pitts Aviation Enterprises, Homestead Fla.  
Serial Numbers  1001 
   Aerotek, Inc., Afton, Wyoming  
2001 through 2271 
   Pitts Aerobatics Afton, Wyoming   
2272 and up 
 
V - Model S-2S, 1 POLB (Normal and Acrobatic Category), Approved 29 May 1981. 
 
The Model S-2S is identical to the Model S-2A except for (1) 260 HP engine, (2) single cockpit, (3) a fuel 
system utilizing two fuel tanks, and (4) forward fuselage modification. 
 
Engine   Lycoming AEIO-540-D4A5 with Bendix Fuel Injector No. RSA-5AD1 
 
Fuel   100/130 minimum grade aviation gasoline 
 
Engine Limits  260 HP @ 2700 RPM for all operations 
 
Propeller and    Hartzell HC-C2YR-4CF/FC8477A-4 Constant Speed 
Propeller Limits  Pitch:  High 32  to 34; low 11  0.1 at 30” station, 78” minimum diameter,  
   80” maximum diameter. 
 
Propeller Spinner Hartzell 836-60 required 
 
Propeller governor Hartzell F6-59Z 
 
Airspeed Limits (CAS) V NE (never exceed) 203 MPH (176 kts) 
   V A (maneuvering) 154 MPH (134 kts) 
   V NO (maximum structural cruising) 154 MPH (134 kts) (For acrobatic  
   maneuver entry speeds see Airplane Flight Manual) 
 
C.G. Range  Normal Category: 
  
   ( + 94.50 to +96.13) at 1575 pounds 
   (+92.35) at 1350 pounds or less 
   (+97.50) at 1472 pounds or less 
 
   Acrobatic Category: 
   (+95.58 to +96.50) at 1500 pounds 
   (+92.35) at 1350 pounds or less 
   (+97.12) at 1440 pounds or less 
   Straight line variation between points given. 
 
Datum   97.81” forward of lower wing leading edge.

A8SO Page 7 of 12 
V. Model S-2S, 1 POLB (cont’d) 
 
Leveling Means  Upper fuselage longerons at rear cockpit. 
 
Maximum Weight Normal Category 1575 pounds 
   Acrobatic Category 1500 pounds 
 
Number of Seats  One (@ + 137.52) 
 
Maximum Baggage 20 pounds (@ 157.81) 
 
Fuel Capacity  35 U.S. gallons (15 gal @ +92.0 and 20 gal. @ +107.2) 
   (33 U.S. gallons usable) 
   See Note 1 for unusable fuel 
 
Oil Capacity  12 quarts (@ +68.60) (6 quarts usable) 
 
Control Surface  Ailerons (symmetrical)   UP 25   2 DOWN 25    2 
Movements  Elevator    UP 25   .75 DOWN 27   .75 
   Elevator Tab (elevator neutral) UP   7    2 DOWN 19   2 
   Rudder    LEFT 30   .75  RIGHT  30  .75 
 
Manufacturer’s  Aerotek, Inc., Afton, Wyoming 
Serial Number  3000 through 3011 
   Pitts Aerobatics, Afton, Wyoming  
3012 and up 
 
VI - Model S-2B, 2 POLB (Normal and Acrobatic Category), Approved 6 April 1983. 
 
The model S-2B is identical to the Model S-2A except for (1) 260 HP engine, (2) wings and landing gear 
moved forward 6”, and (3) upper wing auxiliary tank. 
 
Engine   Lycoming AEIO-540-D4A5 with Bendix Fuel Injector NO. RSA-5AD1 
 
Fuel   100/130 minimum grade aviation gasoline 
 
Engine Limits  260 HP @ 2700 RPM 
   For all operations 
 
Propeller and  Hartzell HC-C2YR-4CF/FC8477A-4 Constant Speed 
Propeller Limits Pitch:  High 32  to 34; low 11  0.1 at 30” Station, 78” minimum diameter, 
80” maximum diameter. 
MT Propeller MTV-9-BC/C190-18A Constant Speed. 
 
   Pitch:  High 29 to 31; Low:  13 +/-0.2 at 26.18” Station.  74.8” diameter, 
   no cutoff permitted.  (S/N) 5298 and up) See Note 3. 
 
Hartzell HC-C3YR-1A/7690C or 7690E Constant speed 
Pitch:  High: 32o ± 1o, Low: 9.4o ±.1o at 30” Station,  
78” minimum diameter, 80” maximum diameter. 
 
Hartzell HC-C3YR-4A/C7690E Constant speed 
Pitch:  High: 32o ± 1o, Low: 9.4o ±.1o at 30” Station,  
78” minimum diameter, 80” maximum diameter. 
 
Propeller Spinner Hartzell 836-60 required with Hartzell HC-C2YR-4CF/FC8477A-4  
MT P-308 required with MTV-9-BC/C190-18A 
VI - Model S-2B, 2 POLB (cont’d)

A8SO Page 8 of 12 
 
Hartzell C-3570(P) required with HC-C3YR-1A/7690C or 7690E 
Hartzell D-7267-P required with HC-C3YR-4A/C7690E 
 
Propeller Governor Hartzell F6-59Z required with Hartzell HC-C2YR-4CF/FC8477A-4 or HC-
C3YR-4A/C7690E or MT Propeller MTV-9-BC/C190-18A 
Hartzell E2-2 required with HC-C3YR-1A/7690C or 7690E 
 
 
Airspeed Limits (CAS) V NE (never exceed) 212 MPH (184 kts) 
   V A  (maneuvering) 154 MPH (134 kts) 
   V NO (maximum structural cruising) 154 MPH (134 kts) 
   (For acrobatic maneuver entry speed see Airplane Flight Manual) 
 
C.G. Range  Normal Category: 
   (+ 88.50 to +90.20) at 1700 pounds 
   (+86.35) at 1475 pounds or less 
 
   Acrobatic Category: 
   (+89.58 to +90.50) at 1625 pounds 
   (+86.35) at 1475 pounds or less 
   Straight line variation between points given. 
 
Datum   91.81” forward of lower wing leading edge. 
 
Leveling Means  Upper fuselage longerons at rear cockpit. 
 
Maximum Weight Normal Category 1700 pounds 
   Acrobatic Category 1625 pounds 
 
Number of Seats  2 (1 @ +105.15) (1 @ +136.50) 
 
Maximum Baggage 20 pounds (@ + 157.81) 
 
Fuel Capacity  29 U.S. gallons (24 gal. @ +81.32 and 5 gal @ +81.75) 
   (28 U.S. gallons usable) 
   See Note 1 for unusable fuel 
 
Oil Capacity  12 quarts (@ +49.70) (6 quarts usable) 
 
Control Surface  Ailerons (symmetrical)   UP 25   2 DOWN 25   2 
Movements  Elevator    UP 27   .75 DOWN 27   .75 
   Elevator tab (elevator neutral) UP  7     2 DOWN 19    2 
   Rudder    LEFT 30   .75 RIGHT 30   .75 
 
Manufacturer’s  Pitts Aerobatics, Afton, Wyoming  
Serial Numbers  5000 - 5120  
   Christen Industries Afton, Wyoming 
   5121 – 5209 
   Aviat Afton, Wyoming 
   5210 – 5330 
   Aviat Aircraft Inc. Afton, Wyoming 
   5331 and up 
 
 
 
 
VII.  Model S-2C, 2 POLB (Normal and Acrobatic Category), Approved 4 June 1998.

A8SO Page 9 of 12 
 
The model S-2C is identical to the Model S-2B except for (1) wings, tail and ailerons of different shape   
(2) Bottom of fuselage of different shape.  The S-2C is approved for +6, -5 g limit load operation. 
 
Engine   Lycoming AEIO-540-D4A5 with Bendix Fuel Injector NO. RSA-5AD1 Fuel 
   100/130 minimum grade aviation gasoline 
 
Engine Limits  260 HP @ 2700 RPM 
   For all operations 
 
Propeller and Propeller 
Limits 
   Manufacturer: Hartzell 
 Model Number: HC-C3YR-1A/7690C or 7690E 
  HC-C3YR-4A/C7690E 
 Number of Blades: 3 Composite 
 Diameter  
 Maximum: 80 inches (1.98 m) 
    Minimum: 78 inches (1.98 m) 
  Propeller Pitch settings 
  High: 32 o ± 1o  
  Low: 9.4 o ±.1o @ 
  30 inch station 
 Propeller Type: Constant speed and 
     hydraulically actuated. 
 
Propeller Spinner  Hartzell C-3570(P) required with HC-C3YR-1A/7690C or 7690E 
Hartzell D-7267-P required with HC-C3YR-4A/C7690E 
 
Propeller governor Hartzell F6-59Z is used with HC-C3YR-4A/C7690E 
Hartzell E2-2 is required with HC-C3YR-1A/7690C or 7690E 
 
Airspeed Limits (CAS) V NE (never exceed) 212 MPH (184 kts) 
   V A  (maneuvering) 154 MPH (134 kts) 
   V NO (maximum structural cruising) 154 MPH (134 kts) 
   (For acrobatic maneuver entry speed see Airplane Flight Manual) 
 
C.G. Range  Normal Category: 
   (+ 88.50 to +90.20) at 1700 pounds 
   (+86.35) at 1475 pounds or less-Straight line variation between points given.  
 
    
Acrobatic Category: (+88.50 to +90.20) at 1700 pounds 
   (+86.35) at 1475 pounds or less 
   Straight line variation between points given. 
 
Datum   91.81” forward of lower wing leading edge. 
 
Leveling Means  Upper fuselage longerons at rear cockpit. 
 
Maximum Weight Normal Category 1700 pounds 
   Acrobatic Category 1700 pounds 
 
Number of Seats  2 (1 @ +105.15) (1 @ +136.50) 
 
Maximum Baggage 20 pounds (@ + 157.81) 
 
 
VI. Model S-2C, 2 POLB (cont’d)

A8SO Page 10 of 12 
Fuel Capacity  29 U.S. gallons (24 gal. @ +81.32 and 5 gal @ +81.75) 
   (28 U.S. gallons usable) 
   See Note 1 for unusable fuel  
 
Oil Capacity  12 quarts (@ +49.70) (6 quarts usable) 
 
Control Surface  Ailerons (symmetrical)   UP 28.5   2 DOWN 22   2 
Movements  Elevator    UP 27   .75 DOWN 27   .75 
   Elevator tab (elevator neutral) UP 25     2 DOWN 25    2 
   Rudder    LEFT 30   .75 RIGHT 30   .75 
 
Manufacturer’s  Aviat Aircraft Inc., Afton, Wyoming 
Serial Numbers  6001 and up  
 
DATA PERTINENT TO ALL MODELS 
 
Empty weight  None. 
 C.G. Range 
 
Equipment  The basic required equipment as prescribed in the applicable airworthiness  
   regulations (see certification basis) must be installed in the aircraft for  
   certification.   In addition, the following is required. 
 
   S-1S 
a.  FAA approved flight manual revision C dated 29 October 1976, or later FAA 
approved revision. 
b.  See approved equipment list Airplane Flight Manual, Weight and Balance Section. 
 
S-1T 
a.  FAA approved flight manual revision C dated 26 July 1976, or later FAA approved 
revision. 
b. See approved equipment list Airplane Flight Manual, Weight and Balance section. 
 
S-2 
a.  FAA approved flight manual revision IR dated 8 March 1971, or later FAA approved 
revision. 
b.  See approved equipment list Airplane Flight Manual, Weight and Balance Section. 
 
S-2A 
a.  FAA approved flight manual revision H dated 25 October 1980, or later FAA 
approved revision. 
b.  See approved equipment list Airplane Flight Manual, Weight and Balance Section. 
 
S-2S 
a.  FAA approved flight manual revision A dated 14 January 1998, or later FAA 
approved revision. 
b.  See approved equipment list Airplane Flight Manual, Weight and Balance Section. 
 
   S-2B 
a.  FAA approved flight manual revision I dated 14 January 1998, or later FAA 
approved revision. 
b.  See Approved equipment list Airplane Flight Manual, Weight and Balance Section. 
 
S-2C 
a.  FAA approved flight manual revision C dated 12 March 2010, or later FAA 
approved revision. 
b.  See Approved equipment list Airplane Flight Manual, Weight and Balance Section.

A8SO Page 11 of 12 
Optional Equipment Refer to Weight and Balance Section of the Airplane Flight Manual for  Optional  
   Equipment. 
 
 
 
DATA PERTINENT TO ALL MODELS (cont’d) 
 
Certification Basis FAR 23, effective February 1, 1965, including amendments 1 through 6.  Application for  
   type certificate, August 16, 1968. 
 
   FAR 36, dated December 1, 1969, plus amendments 36-1 through 36-11. 
 
Production Basis  Production Certificate No 419, except the Model S-2.  Prior to original certification of  
   each Model S-2 aircraft, an FAA representative must perform a detailed inspection for  
   workmanship, materials and conformity with the approved technical data and a check of  
   the flight characteristics. 
 
Export Eligibility  Aircraft will be eligible for issuance of an export certificate of airworthiness subject to  
   compliance with Federal Aviation Regulations Part 21, Subpart L, Section 21.321  
   through 21.339.  Special requirements of specific foreign countries are contained in  
   Advisory Circular 21.2. 
 
NOTES 
 
NOTE 1.  Current weight and balance report including list of equipment included in certificated  
   empty weight, and loading instructions must be provided for each aircraft at the time of  
   original certification.  The empty weight and the corresponding center of gravity location  
   must include the following unusable fuel: 
    
   S-1S – 6 pounds (@ +59.63) 
 
   S2 and S-2A – 6 pounds (@ + 80.81) 
 
   S-1T – 6 pounds (@ +59.50) 
  
   S-2S – 6 pounds (@ +92.00) and 6 pounds (@ +107.20) 
 
   S-2B – 6 pounds (@ +81.32) 
  
   S-2C – 6 pounds (@ +81.32) 
 
NOTE 2.  All placards required in the approved Airplane Flight Manual must be installed in the  
   appropriate locations. 
 
NOTE 3.  S-2B aircraft S/N 5000 and up are approved for installation of the MT Propeller when  
   installed in accordance with serialized AVIAT Kit S-2B-Pitch limits and diameter for the  
   MT Propeller are shown on page 9 of this Type Certificate Data Sheet.  An FAA  
   Approved Flight Manual revision for the MT Propeller, for the Pitts S-2B is required.  
 
NOTE 4.  S-2B aircraft S/N 5000 and up are approved for installation of the 3 blade Hartzell  
Composite Propeller when installed in accordance with serialized AVIAT Kit S-2B-526.   
   Pitch limits and diameters for the propeller are shown on page 9 of this Type Certificate  
 
Data Sheet.  An FAA Approved Flight Manual revision for the 3 blade composite  
   Propeller, for the Pitts S-2B is required. 
 
NOTE 5. The S-2C aircraft S/N 6001 and up are approved for installation of the Electronics  
 International, Inc. FLC-1CAB electronic fuel quantity indicating system per the Type  
 Design data for that model.

A8SO Page 12 of 12 
 
NOTE 6.           Deleted  
 
 
 
NOTES (cont’d) 
 
NOTE 7. S-2B Aircraft S/N 5000 and up and S-2C aircraft S/N 6000 and up are approved 
for   installation of the smoke system per Aviat Drawing No. 2-1018 dated 
7/30/2007 or later FAA approved revision for use in air show work and aerial 
demonstrations and can also be field installed via AVIAT Kit # S-2B/S-2C-508 
per Sky International Service Letter No. 15.  FAA Approved Flight Manual 
Supplement #70461, Revision IR, dated October 10, 2008 or later FAA 
approved revision and ICA Smoke System Document #70207-001, Revision IR, 
dated May 6, 2008 or later FAA accepted revision is required. 
 
NOTE 8 S-2C serial number 6000 and up are approved in the Normal & Acrobatic 
airworthiness category with the exception of serial number 6044 due to an un-
airworthy condition. 
 
…END…
```

## ADs (15, in force first)

- [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI or SA02658SE). Effective Mar 21, 2022
- [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006
- [AD 96-12-03 R2](https://openairdocs.org/ad/96-12-03-R2): Aft Lower Fuselage Wing Attach Fittings · Aviat S-1S, S-1T, S-2 and 3 more. Effective Nov 20, 1998
- [AD 97-26-20](https://openairdocs.org/ad/97-26-20): Longerons · Aviat S-2A, S-2B and S-2S. Effective Jan 22, 1998
- [AD 96-10-12](https://openairdocs.org/ad/96-10-12): Flight Control Stick · Aviat S-1S, S-1T, S-2 and 3 more. Effective Jun 7, 1996
- [AD 85-01-04](https://openairdocs.org/ad/85-01-04): Cockpit Control Tube Assembly · Aviat S-2A. Effective Jan 21, 1985
- [AD 76-16-08](https://openairdocs.org/ad/76-16-08): Rudder Control · Aviat S-1S and S-2A. Effective Aug 20, 1976
- [AD 73-16-06](https://openairdocs.org/ad/73-16-06): Induction Air Box Flapper Door · Aviat S-2A. Effective Aug 13, 1973
- [AD 73-07-06](https://openairdocs.org/ad/73-07-06): Horizontal Stabilizer Support Tube · Aviat S-2A. Effective Apr 17, 1973
- [AD 72-19-05](https://openairdocs.org/ad/72-19-05): Horizontal Stabilizer Support Tube · Aviat S-2A. Effective Sep 20, 1972
- [AD 72-19-02](https://openairdocs.org/ad/72-19-02): Aileron Interconnect Tubes · Aviat S-2A. Effective Sep 15, 1972
- [AD 96-12-03 R1](https://openairdocs.org/ad/96-12-03-R1) (historical): Aft Lower Fuselage Wing Attach Fitting · Sky International S-1S, S-1T, S-2 and 3 more. Effective Oct 3, 1997
- [AD 96-09-08 R1](https://openairdocs.org/ad/96-09-08-R1) (historical): Longerons Aft Of Rear Cabane Struts · Sky International S-2A, S-2B and S-2S. Effective Jul 26, 1996
- [AD 96-12-03](https://openairdocs.org/ad/96-12-03) (historical): Aft Lower Fuselage Wing Attach Fitting · Sky International S-1S, S-1T, S-2 and 3 more. Effective Jun 24, 1996
- [AD 96-09-08](https://openairdocs.org/ad/96-09-08) (historical): Longerons Aft Of Rear Cabane Struts · Sky International S-2A, S-2B and S-2S. Effective May 20, 1996

## Registered aircraft by registry model (OpenAirDocs)

- [Aviat PITTS S-2B](https://openairdocs.org/model/aviat-pitts-s-2b): 89 aircraft (registry codes 2210308, 2210403)
- [Aviat S-2C](https://openairdocs.org/model/aviat-s-2c): 57 aircraft (registry code 8130001)
- [Pitts Aerobatics S-2B](https://openairdocs.org/model/pitts-aerobatics-s-2b): 28 aircraft (registry code 7220450)
- [Pitts S-1T](https://openairdocs.org/model/pitts-s-1t): 12 aircraft (registry code 7220404)
- [Pitts S-2A](https://openairdocs.org/model/pitts-s-2a): 9 aircraft (registry code 7220401)
- [Aviat PITTS S-1T](https://openairdocs.org/model/aviat-pitts-s-1t): 4 aircraft (registry codes 2210310, 2210402)
- [Aviat PITTS S-2C](https://openairdocs.org/model/aviat-pitts-s-2c): 4 aircraft (registry code 2210409)
- [Pitts S-1S](https://openairdocs.org/model/pitts-s-1s): 3 aircraft (registry codes 7220402, 72202LW, 72202MM)
- [Pitts S-2S](https://openairdocs.org/model/pitts-s-2s): 3 aircraft (registry code 7220499)
- [Pitts SPECIAL S1-S](https://openairdocs.org/model/pitts-special-s1-s): 3 aircraft (registry codes 72202Q0, 72202MZ)
- [Perner/Pitts S1S](https://openairdocs.org/model/perner-pitts-s1s): 2 aircraft (registry code 72202K7)
- [Pitts Acrobatics PITTS S-1T](https://openairdocs.org/model/pitts-acrobatics-pitts-s-1t): 2 aircraft (registry code 7220700)
- [Pitts Flying Club PITTS S-1S](https://openairdocs.org/model/pitts-flying-club-pitts-s-1s): 2 aircraft (registry code 7220685)
- [Sky International S-2C](https://openairdocs.org/model/sky-international-s-2c): 2 aircraft (registry code 8130000)
- [Clevenger-Pitts PITTS S-1S](https://openairdocs.org/model/clevenger-pitts-pitts-s-1s): 1 aircraft (registry code 7220607)
- [Craft-Pitts S1S](https://openairdocs.org/model/craft-pitts-s1s): 1 aircraft (registry code 72201A2)
- [Pinkston Pitts S-1S](https://openairdocs.org/model/pinkston-pitts-s-1s): 1 aircraft (registry code 72202UG)
- [Pitts C H S-1T](https://openairdocs.org/model/pitts-c-h-s-1t): 1 aircraft (registry code 7220403)
- [Pitts S-2B](https://openairdocs.org/model/pitts-s-2b): 1 aircraft (registry code 7220405)
- [Pitts Special S-1S](https://openairdocs.org/model/pitts-special-s-1s): 1 aircraft (registry codes 722020C, 72202ZT)
- [Tilton-Pitts S-1S](https://openairdocs.org/model/tilton-pitts-s-1s): 1 aircraft (registry code 72201A3)
- [Aviat PITTS S-1S](https://openairdocs.org/model/aviat-pitts-s-1s): 0 aircraft (registry codes 2210304, 2210401)
- [Aviat PITTS S-2S](https://openairdocs.org/model/aviat-pitts-s-2s): 0 aircraft (registry codes 2210306, 2210404)
- [C H Pitts PITTS S-1S](https://openairdocs.org/model/c-h-pitts-pitts-s-1s): 0 aircraft (registry code 7220231)
- [Christen Industries S-1S](https://openairdocs.org/model/christen-industries-s-1s): 0 aircraft (registry code 2210001)
- [Christen Industries S-2](https://openairdocs.org/model/christen-industries-s-2): 0 aircraft (registry code 2210003)
- [Dearing-Pitts Special S1-S](https://openairdocs.org/model/dearing-pitts-special-s1-s): 0 aircraft (registry code 72202MV)
- [Elliott Jim S1S](https://openairdocs.org/model/elliott-jim-s1s): 0 aircraft (registry code 7220798)
- [Fife-Pitts Special S-1S](https://openairdocs.org/model/fife-pitts-special-s-1s): 0 aircraft (registry code 72202MX)
- [Guy-Pitts Special S-1S](https://openairdocs.org/model/guy-pitts-special-s-1s): 0 aircraft (registry code 72202MT)
- [Pitts Flying Club PITTS SPECIAL S1S](https://openairdocs.org/model/pitts-flying-club-pitts-special-s1s): 0 aircraft (registry code 7220671)
- [Pitts S-2](https://openairdocs.org/model/pitts-s-2): 0 aircraft (registry code 72202LY)
- [Pitts Williams S1T](https://openairdocs.org/model/pitts-williams-s1t): 0 aircraft (registry code 056207O)
- [Pitts Williams S2S](https://openairdocs.org/model/pitts-williams-s2s): 0 aircraft (registry code 05617EJ)
- [Pitts-Tubb PITTS SPECIAL S-1-T](https://openairdocs.org/model/pitts-tubb-pitts-special-s-1-t): 0 aircraft (registry code 722024A)
- [Pitts/Campbell S A S1S PITTS CAMPBELL](https://openairdocs.org/model/pitts-campbell-s-a-s1s-pitts-campbell): 0 aircraft (registry code 7220201)
- [S2S Pitts/Williams S2S](https://openairdocs.org/model/s2s-pitts-williams-s2s): 0 aircraft (registry code 056130G)
- [Soucy Pitts Special S-1S](https://openairdocs.org/model/soucy-pitts-special-s-1s): 0 aircraft (registry code 72202MP)

## STCs approved under this data sheet (104, first 50)

- [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of  existing instrument panel lights dimmer control.. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA12428CH](https://openairdocs.org/stc/SA12428CH): Installation of the Lycoming Engines Electronic Ignition System (EIS). Lycoming Engines, An Operating Division of AVCO Corporation
- [STC SA12406WI](https://openairdocs.org/stc/SA12406WI): Installation of a Garmin AXIS Flight Display System. Garmin International Inc.
- [STC SA01005DE](https://openairdocs.org/stc/SA01005DE): Installation of a EarthX ETX900-TSO Lithium battery. EarthX Inc.
- [STC SA12223IB](https://openairdocs.org/stc/SA12223IB): Installation of Beringer wheel and brake assembly. Air Projet
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS  (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc.
- [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system.. Shady Aviation LLC
- [STC SA04378CH](https://openairdocs.org/stc/SA04378CH): Installation of an engine modified per STC SE04349CH. SureFly Partners Ltd.
- [STC SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc.
- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).. Garmin International Inc.
- [STC SA01899WI](https://openairdocs.org/stc/SA01899WI): Installation of Garmin G3X Touch Electronic Flight Instrument System. Garmin International Inc.
- [STC SA02019WI](https://openairdocs.org/stc/SA02019WI): Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio.. Peregrine
- [STC SA01435LA](https://openairdocs.org/stc/SA01435LA): Installation of engines modified with Firewall Forward Technologies LLC modified camshaft. Centri-Lube Technologies LLC
- [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance  Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine
- [STC SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC
- [STC SA02987CH](https://openairdocs.org/stc/SA02987CH): Installation of the Electroair Electronic Ignition System. Electroair Acquisition Corporation
- [STC SA04123CH](https://openairdocs.org/stc/SA04123CH): Installation of an MT-Propeller MTV-9-B-C/C200-25 or MTV-14-B-C/C190-130 and spinner assembly. McFarlane Aviation LLC
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc.
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA03819NY](https://openairdocs.org/stc/SA03819NY): Installation and maintenance of Oratex 6000 Covering and Coating System. Lanitz-Prena Folien Factory GmbH
- [STC SA01818WI](https://openairdocs.org/stc/SA01818WI): Installation of Garmin G5 Electronic Flight Instrument. Garmin International Inc.
- [STC SA02553AK](https://openairdocs.org/stc/SA02553AK): Fabrication and installation of a Tail Wheel Anti-Shimmy Dampener. Keller Engineering Group LLC
- [STC SA11174SC PAGE 2](https://openairdocs.org/stc/SA11174SC%20PAGE%202): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA02430SE](https://openairdocs.org/stc/SA02430SE): Fabrication and installation of a camera housing. Airborne Sensor LLC
- [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation
- [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems.. Garmin International Inc
- [STC SA03286CH](https://openairdocs.org/stc/SA03286CH): Install an electronic engine ignition system. Electroair Acquisition Corporation
- [STC SA04032CH](https://openairdocs.org/stc/SA04032CH): Install rocker switch assemblies. Electroair Acquisition Corporation
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA01435SE](https://openairdocs.org/stc/SA01435SE): Installation of J.P. Instruments (JPI) Primary Engine Data Management System. J. P. Instruments
- [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less.. Airwolf Filter Corporation
- [STC SA01933LA-D](https://openairdocs.org/stc/SA01933LA-D): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems.. J P Instruments
- [STC SA00382BO](https://openairdocs.org/stc/SA00382BO): Installation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanes. Avidyne Corporation
- [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation
- [STC SA00375BO](https://openairdocs.org/stc/SA00375BO): Aviat Aircraft  Aileron Counterbalance Plates. Liu, Weston B.
- [STC SA00352BO PAGE 1](https://openairdocs.org/stc/SA00352BO%20PAGE%201): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),. Avidyne Corporation
- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.. Andrew D. Humphrey
- [STC SA00364BO](https://openairdocs.org/stc/SA00364BO): Counterbalance Plates. Weston B Liu
- [STC SA02119SE PAGE 1](https://openairdocs.org/stc/SA02119SE%20PAGE%201): Installation of Garmin GDL 88 ADS-B UAT Transceiver System. Garmin International Inc
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric.. Aviation Products Systems Inc.
- [STC SA01229SE PAGE 1](https://openairdocs.org/stc/SA01229SE%20PAGE%201): Installation of GNS 480 (CNX80) GPS WAAS Navigator with integrated VHF Navigation and Communication radios. Garmin International Inc
- [STC SA02442AK PAGE 1](https://openairdocs.org/stc/SA02442AK%20PAGE%201): Approval of the L-3 Communications NGT 2000/2500 ADS-B system. ADS-B Technologies, LLC
- [STC SA01933LA-D PAGE 2](https://openairdocs.org/stc/SA01933LA-D%20PAGE%202): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA02930NY](https://openairdocs.org/stc/SA02930NY): Installation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) Instruments. Insight Instrument Corporation
- [STC SA02283SE PAGE 1](https://openairdocs.org/stc/SA02283SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc.

All 104: https://openairdocs.org/tcds/A8SO/stcs.md

---
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