# TCDS TC 113: Pratt & Whitney Division

- Type: Type certificate data sheet
- Status: Current
- Holder: Pratt & Whitney Division
- Revision: 0
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/c6/19/c619b5f9a43d1e7067e6a4bd6183ddcfaf2aba91227b12d5db7ef855873e2bbc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DEB9D19186FE128A8525670D005E4B1C.0001
- Page: https://openairdocs.org/tcds/TC%20113

## Models (1)

As the data sheet lists them.

- Wasp Jr. T1B

## What the data sheet says

This is OCR from the scanned FAA data sheet. OCR can misread letters and numbers.

```text
MODEIS: Pratt & Whitney Wasp Jr. I1B
I.C..NUMBER: T.C. 113
Model  туре  WAs - Firect drive
Rating:
Maximum continuous,
he. IIm, at s.l.
cressure altitude  345-2000-S.L.
Take-off (one minute),
op. xEm, at full  throttle  400-2300
Fuel (minimum octane
aviation gasoline)  73 (80 octane for take-off)
ore and stroke, in  5-3/16×5-3/16
Lisplacement.  cu. in.
Comfression ratio
Weight (dry) .  Ibs.
Fropeller shaft,
SAE NO.  30
Supercharging
(impeller gear ratio)  8: 1
Carburetion
Ignition, dual  scintilla
Ignition timing.
degrees BTC  25
Certification rasis  Type Certificate No. 113
ACland 200 den perm., it cylveder head, barrel, and oil inlet temperature 550 degrees F., 335 degrees F..
Not love to el giple d Yuse in He ericated f tota model manufactured after this date or with serial numbers
```

## ADs (7, in force first)

- [AD 78-08-07](https://openairdocs.org/ad/78-08-07): Cylinder Head Separation · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 more. Effective May 2, 1978
- [AD 68-09-01](https://openairdocs.org/ad/68-09-01): Crankshaft Flyweight Liners · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 more. Effective Jan 17, 1973
- [AD 70-10-02](https://openairdocs.org/ad/70-10-02): Gerotor Pump Drive Pin/Fuel Injector Filter · Pratt & Whitney R-985 engine and ATI fuel injection (Staggerwing Museum Foundation STC SE1-391). Effective Jun 9, 1970
- [AD 66-14-04](https://openairdocs.org/ad/66-14-04): Cam Reduction Drive Gear Assembly · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 more. Effective Jul 9, 1966
- [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
- [AD 57-05-04](https://openairdocs.org/ad/57-05-04): Crankshaft · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 more
- [AD 56-26-03](https://openairdocs.org/ad/56-26-03) (historical): Crankshaft · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 more

## STCs approved under this data sheet (1)

- [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

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