# TCDS TC 169: Wright Aeronautical Division Curtiss-Wright Corporation

- Type: Type certificate data sheet
- Status: Current
- Holder: Wright Aeronautical Division Curtiss-Wright Corporation
- Revision: 0
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/ac/00/ac000a2fd829cd0b0f4c47a4dcdb59f9b0064d8839f26005d66c8447cb36d007
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6D71117D4ECD8D068525670E0065B7E2.0001
- Page: https://openairdocs.org/tcds/TC%20169

## Models (1)

As the data sheet lists them.

- Cyclone GR-1820G-102 Series

## What the data sheet says

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

```text
MORELS: Wright Cyclone GR-18206-102 series and Military R-1820-57, -79, -81, -83, -85, -89
IS. NUMBER: T.C. 169
Model - cyclone GR-18206  - 102  • 10 2A  - 102B
Type -  16:11 and 3:2
reduction gears
Rating:
Maximum continuous,
spa.  in.Hg.. at:
tated pressure
altitude (ft.)  900-2200-35-6000  900-2300-35.4-6700  850-2300-34.5-7500
pressure altitude  900-2200-36.7-S.L.  900-2300-37.5-S.L.  850-2300-38 1/2 -S.L.
(one minute),
Fuel  hp.  (minimum octane  in. Hg.  1100-2350-43 6 1100-2200-43  1100-2350-43-5  1100-2350-43
aviation gasoline)
Pore and stroke, in.  (CFR Motor Method fuel) 90  6-112 × 6-718  87
risflacement,  cu. in.  1823
compression ratio  6.7:1  6.0:1
height (dry),  Ibs.  1275
Fropeller  shaft,  SAE NO.  50
Supercharging
(infeller gear ratio)  7:1
Carburetion  Holley C.G. 1375 C, E
HA OI  stromberg
Chandler-Evans 1375 DA-1, or
PD-12H2 or 3 carburetor with ..  Strombexg PD-12B5 or 7 ox  3-1/4 in. venturi
Ignition, dual  Scintilla SF9L1, SF9L2,
SF9IN, SF9LN1, SF9L3, SF9L4
or Bosch SF9LU3 magnetos
Ignition timing,
NOTES  Certification basis  degrees BIC  Right 20; left 15  Type Certificate No. 169  Type  1,2,3  1. 2
Froduction casis  None.  The manufacturer does not hold a production certificate for the production of
engines under this type certificate, and therefore, each engine so produced is subject
to a Jetailed inspection for workmanshif and conformity with the approved data ky a
Civil Aeronautics Administration Agent.  In addition, the engine must have a satisfactory
run-in including 5 hours at rated power and speed.  Ufon satisfactory completion of
the above, the agent will tag the engine with Iag Form ACA 186.
Maximum permissible cylinder head, barrel, and oil inlet temperatures 500 degrees F.. 325 degrees I..
and 222 degrees F., respectively.
NOIE 2. Eligitle with torquemeter No. 413516 at weight increase of 12 lbs.
NOTE 3.  Military models R-1820-79, -81, -83, -85 and -89, identical to model GR-18206-102A, are eligikle for
use in certificated aircraft; however,  the engine nameplate should be revised to include the correspondirg
ivil model designation and Type Certificate number.
NOTE 4.  Military model R-1820-57 may be corverted to the Cyclone GR-18200-102 Ly substituting supercharger
impeller P/N  27145 and using  either the 1375 DA-1 carburetor, setting number 69445N1, 2 or 4 as applicable
or substituting the Holley 1375 F carturetor with setting number 6927N29B.
```

## ADs

None name its models.

## 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

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.