# TCDS E-142: Pratt & Whitney Division

- Type: Type certificate data sheet
- Status: Current
- Holder: Pratt & Whitney Division
- Revision: 3
- Revised: February 1, 1974
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/84/53/8453c76bed5325a61188f05a969ccd724cbf2f44e29ca1b0ab96ac81ee00c636
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4031FD8F933DEB998525670D005FAF78.0001
- Page: https://openairdocs.org/tcds/E-142

## Models (2)

As the data sheet lists them.

- Wasp S3H1-G
- Wasp R-1340-59

## 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
Rev. No. 3 3
FEDERAL AVIATION AGENCY
E-142
Revision 3
Pratt & Whitney
WASP
S3H1-G
R-1340-59
February 1, 1974
AIRCRAFT ENGINE SPECIFICATION
Engines of models described herein conforming with this specification and approved data on file with the Federal Aviation
Agency meet the minimum standards for use in certificated aircraft in accordance with pertinent aircraft specifications and
applicable portions of the Civil Air Regulations provided they are installed, operated, and maintained as prescribed by the
approved manufacturer's manuals and other approved instructions.
Manufacturer Pratt & Whitney Aircraft
Division of United Aircraft Corporation
East Hartford, Connecticut
Model Wasp S3H1 R-1340-59
Type                                                        9RA 3:2 reduction gearing - -
Rating (Impeller gear ratio) 10:1 - -
Maximum continuous, hp., rpm, in.Hg., at:
Critical altitude (ft.) 550-2200-32.5-5000 - -
Sea level pressure altitude (ft.) 550-2200-34.0-S.L. - -
Takeoff (5 minutes), hp., rpm, in.Hg., at:
Critical altitude (ft.) 600-2250-35.5-3000 - -
Sea level pressure altitude (ft.) 600-2250-36.0-S.L. - -
    (See Note 4 for additional rating.)
Fuel (minimum grade aviation gasoline) 80/87 - -
Lubricating oil See P&WA Service Bulletin No. 1183 - -
Bore and stroke, in. 5.75 X 5.75 - -
Displacement, cu. in. 1344 - -
Compression ratio 6:1 - -
Weight (dry), lb. 930 950
Propeller shaft, SAE No. 40 - -
Carburetion Stromberg NA-Y9B, NA-Y9C or
NA-Y9H with 2-3/4 in. venturi
Strromberg NA-Y9E1
Ignition, Dual Scintilla SB9R magnetos Scintilla SB9RN-4
Timing, °BTC 25 - -
Spark plugs See P&WA Service Bulletin No. 1175 - -
Notes 1, 2, 3, 4, 7 1, 2, 3, 6, 7
Certification basis Type Certificate No. 142
Production basis Production Certificate No. 2

E-143 2
NOTE 1. Maximum permissible temperatures are as follows:
Cylinder Head Cylinder Barrel Oil Inlet
S3H1-G 500°F. 300°F. 200°F.
R-1340-59 500°F. 335°F. 200°F.
NOTE 2. Fuel and oil pressure limits: S3H1-G R-1340-59
Fuel pressure (psi)   3-6   3-5
Oil pressure (psi) 70-90 70-90
NOTE 3. The following accessory drives are provided:
Direction of
Rotation
(Clockwise or
Counter-
Speed Ratio
(Times
Crankshaft
Maximum Torque
(in. lb.)
**Maximum
    Overhang
Clockwise)  Speed) Cont. Static (in.-lb.)
Starter CC 1.0 2300 10,000 180
Generator C 1.5 100 300 183
Generator (opt. S3H1-G) C 2.0 140 900 183
            (Std. R-1340-59)
Fuel pump CC 1.0 150 450 10
Aux. accessory CC 1.0 *150 450 10
Tachometer R.H. C   .5 15 45 10
L.H. CC   .5 15 45 10
Goverrnor C 1.144 60 250 -
Vacuum pump C 1.5 *100 300 10
*Maximum combined drive load of vacuum pump and fuel pump must not exceed 150 in.-lb.
**Maximum allowable accessory moments in in.-lb., provided no destructi ve accessory drive or mounting
pad forces resulting from accessory vibration are present.
Early Wasp engines incorporate tongue and groove vacuum and fuel pump drives.  All later engines have
spline type drives.
NOTE 4. (a) Ratings are based upon the best power mixture strength and 450°F cylinder head temperature.
(b) With the use of grade 91/96 fuel, the following ratings may be used:
Maximum continuous, hp, rpm, in.Hg., at:
Critical altitude (ft.) 550-2200-33.0-4500
Sea level pressure altitude (ft.) 550-2200-34.0-S.L.
Takeoff (one minute), hp, rpm, in.Hg., at:
Critical altitude (ft.) 600-2250-36.0-2300
Sea level pressure altitude (ft.) 600-2250-36.5-S.L.
NOTE 5. Deleted February 1, 1974.
NOTE 6. Eligible with rear crankcase section fabricated from aluminum alloy instead of magnesium alloy at a
weight increase of 12 lbs.
NOTE 7. R-1340-59 is the same as S3H1-G except for carburetor setting and dry weight.
.....END.....
```

## ADs (3, in force first)

- [AD 99-11-02](https://openairdocs.org/ad/99-11-02): Cylinders Inspections · Pratt & Whitney Division Military R-1340 Series, Wasp R-1340-59, Wasp R-1340-61 and 7 more. Effective Jul 19, 1999
- [AD 96-15-02](https://openairdocs.org/ad/96-15-02): Crankshaft counterweight · Pratt & Whitney Division Military R-1340 Series, Wasp S1H1, Wasp S1H1-G and 2 more. Effective Aug 12, 1996
- [AD 56-06-02](https://openairdocs.org/ad/56-06-02): Cylinder Flange Attaching Stud · Pratt & Whitney Division Double Wasp CA15, Double Wasp CA17, Double Wasp CA18 and 115 more

## STCs approved under this data sheet (12)

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc.
- [STC SE5189NM](https://openairdocs.org/stc/SE5189NM): Installation of chip detector light system.. A & L Aircraft Parts Inc
- [STC SE01200LA](https://openairdocs.org/stc/SE01200LA): Installation of Pratt & Whitney R-2800 engine cylinder assemblies on altered P&WA R-1340 engine models. Aircraft Cylinder & Turbine Inc.
- [STC SE09538SC](https://openairdocs.org/stc/SE09538SC): Installation of American Bosch magneto and ignition harness, model SB9RU-3 magneto and P/N 165373 harness, or SB9RC-3 magneto and PN 165374 harness.. Covington Aircraft Engines, Inc.
- [STC SE919NE](https://openairdocs.org/stc/SE919NE): Replacement of P&W P/N C-13670(Gear-floating blower drive) with Windsor Aerospace P/N WA-C-13670 and P&W P/N 11768 (Cam) with Windsor Aerospace P/N WA-11768.. Windsor Gear and Drive Inc
- [STC SE09029SC](https://openairdocs.org/stc/SE09029SC): Install chip detector system on P&W R-1240 series engines.. Air Tractor, Inc
- [STC SE6069NM](https://openairdocs.org/stc/SE6069NM): Removal of inverted flight check valve from Stromberg NA-R9B and NA-Y9E1 series carburetors.. Aero Engines Inc.
- [STC SE2658NM](https://openairdocs.org/stc/SE2658NM): Replacement of type design P&W P/N 11768 engine with Precision Aero-Parts, Inc. P/N R-1768. Precision Aero-Parts Inc.
- [STC SE5584SW](https://openairdocs.org/stc/SE5584SW): Propeller shaft oil seal.. Page Industries, Inc
- [STC SE1864CE](https://openairdocs.org/stc/SE1864CE): Operation of engine on unleaded automotive gasoline.. Petersen Aviation Inc
- [STC SE741SW](https://openairdocs.org/stc/SE741SW): R-1830 rockershaft assemblies.. Southwest Airmotive Co

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