# TCDS TC 180: 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/ad/9f/ad9f5bdfa2813a8bbe039fc78f05f5984d869911da4d2182030e911d0dc6e301
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BAD890BD4ED9ECDC8525670E0065C02D.0001
- Page: https://openairdocs.org/tcds/TC%20180

## Models (2)

As the data sheet lists them.

- Cyclone GR-1820G-103
- Cyclone GR-1820G-103A

## What the data sheet says

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

```text
MOLELS: Kright Cyclone GR-1820G-103, -103A
1.C. NUMEER: T.C. 180
Type - 9RA  Model - Cyclone GR-1820G  16:11 and 3:2 reduction gears  - 103  - 103A
Fating (with impeller
gear ratio) :  8-31:1
raximum continuous,
hp.  rEm, in.Hg., at:
Rated pressure
altitude  (ft.)  860-2200-34-8-10000  860-2300-34-2-11100
Sea level
Fressure altitude  860-2200-37.7-S.L.  860-2300-38.0-S.L.
Take-off 15  minutes) .
hp, rpm. in.Hg.  1000-2300-42.5  1000-2350-43-5
Fuel (minimum octane
aviation gasoline)
(DFF  Motor Method fuel) 95  90
Bore and stroke, in.  6-112 × 6-718
Lisplacement, cu. in.  1823
Compression ratio  weight (dry), lbs.  6.7:1  1275  6_3:1
Fropeller shaft,
SAE No.  50
Carturetion  He lin
or Charter evan- 1355 37-1 2a Buretor
Ignition, dual  Scintilla SF9L1, 2, 3, 4, or Bosch
SF9LU-3 magnetos
Ignition, timing,
degrees PIC  Right 0; left 15
Certification basis  Type Certificate No. 180
Froduction basis  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
detailed inspection for workmanship and conformity with the approved data by a civil
Aeronautice Administration Agent.  In addition, the engine must have a satisfactory
run-in including 5 hours at rated power and speed.  Upon satisfactory completion of
the above, the agent will tag the engine with Tag Form ACA 186.
NOTtand 220 degrees F.. respectively.  Maximum permissible cylinder head, tarrel, and oil inlet temperatures, 500 degrees F.. 325 degrees f.,
NOTE 2.  Eligible with torquemeter number 413516 at a weight increase of 12 lbs.
NOTE 3.  G105A engines, numbers 25408, 25427 have been converted to Model G103.
```

## ADs

None name its models.

## STCs approved under this data sheet (1)

- [STC SE1084GL](https://openairdocs.org/stc/SE1084GL): Installation of Shadin fuel flow transducer.. Shadin Avionics

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