# TCDS TC 207: Fairchild Engine Division Fairchild Engine and Airplane Corp.

- Type: Type certificate data sheet
- Status: Current
- Holder: Fairchild Engine Division Fairchild Engine and Airplane Corp.
- Revision: 0
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/72/67/7267a4944868cc189d1f24ea2f073e378578e6f1eb4e3d2056d0748b3d80a8a1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4EC857F65EFD0CCA8525670C0052B5EC.0001
- Page: https://openairdocs.org/tcds/TC%20207

## Models (4)

As the data sheet lists them.

- SGV-770-B6
- SGV-770-B3
- SGV-770-B7
- SGV-770-B4

## What the data sheet says

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

```text
MODELS: Fairchild (Ranger) SGV-770-83, -94, -B6, -B7
1.C. NOMBER: I.C. 207
Model  B4  B6  B7
TyFe - 12VIA  3:1 reduction gears  __
rating:
Maximum continuous,
hp. rpm. in.Hg., at:
Rated pressure
altitude  (ft.)  450-2950-37-5500  450-3000-36-1200
S.L. pressure
altitude  420-2800-33.5-S.L.  450-2900-35-S.L.  450-2950-38-S.L.  450-3000-38-S.L.
Take-off  (one minute),
bp, IIm, in.Hg.  420-2800-33.5  450-2900-35  500-2950-42  520-3150-44
Fuel  (minimum octane
aviation gasoline)
(CFR Motor Method
Fuel)  87
Pore and stroke, in.  4 × 5-178  - _
Lisplacement, cu  in.  772-8
comfression ratio  6-5:1
Weight (dry),  1bs.  655  725
Fropeller  shaft,
SAE No.  30
Supercharging
(impeller gear ratio)  7.71:1  8-84: 1  9-5:1
Carburetion  Stromberg NAR-9A car-  Holly C.G. 1375 UD
buretor with 2-3/4 in.
venturi  (See NOTE 2)
Ignition, dual  Scintilla DF (doutle)
magneto
Ignition timing.
degrees BIC  25
Certification basis  Type Certificate No. 207
NOTES  1.2,4  1,2,4  - 4  1, 3,4
CTE 1.  aximum permissible cylinder head, barrel and oil inlet temperatures, 500 degrees F-, 280 legrees r..
ind 200  degrees F.. repsectively.
NOTE 2-  Models s6V-770-B3 and SGV-770-34 employ a throttle stop on the carburetor limiting opening to 42 degrees
from full closed.
NOIE 3. Model SGV-770-B7 incorporates four dynamic dampers: two 1-1/2 order, one 2-1/2 order and one 6 order.
NOTE 4.  Approval expired 10/21/43. No engines of these models manufactured after this date eligible for use
in certificated aircraft.
```

## ADs

None name its models.

## Registered aircraft by registry model (OpenAirDocs)

- [Fairchild SGV-770-B3](https://openairdocs.org/engine/fairchild-sgv-770-b3): 0 aircraft (registry code 26011)
- [Fairchild SGV-770-B4](https://openairdocs.org/engine/fairchild-sgv-770-b4): 0 aircraft (registry code 26012)
- [Fairchild SGV-770-B7](https://openairdocs.org/engine/fairchild-sgv-770-b7): 0 aircraft (registry code 26014)

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