# TCDS TC 192: 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/sha256/32/22/3222a8915dc37efb925e41d3f3d147921791152a63e61b556262a8d486b10538
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F7B853A28B9FDAC48525670E0065C919.0001
- Page: https://openairdocs.org/tcds/TC%20192

## Models (3)

As the data sheet lists them.

- Cyclone GR-1820G-105A
- 718C9GB1
- Cyclone GR-1820G-105

## What the data sheet says

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

```text
MODELS: Wright Cyclone GR-1820G-105, -105A and 718C9GB1
I.C. NUMBER: T.C. 192
Model - Cyclone GR-1820G  - 105  - 105A
New designation  718C9GB 1
Type - 9RA  16:11 6 3:2 reduction gears  3: 2
Rating (with low
impeller gear ratio):  7.14:1
melated grabore de.
900-2200-35.-6000  900-2300-35.4-6700  900-1200-35.4-6700
Sea level
pressure altitude  900-2200-36.7-8.I.  900-2300-37.5-S.L.  900-2300-37.5-S.L.
Take-off (5 minutes) ,
hp. rpm, in.Hg.  1100-2200-43  1100-2350-43.5  1100-2350-43.5
1080-2200-43.4
Rating (with high
impeller gear ratio)  10:1
faximum continuous.
bp. rpm, in.Hg.. at:
Raced pressure
altitude (ft.)  750-2200-33.-17000  775-2300-33-6-17300  775-2300-33-6-17300
Low critical
Fressure altitude
(£t.)  750-2200-36-11000  775-2300-36.-1100  775-2300-36.-11000
Take-off (5 minutes).
850-2200-39.5-S.L.
take-off (5 minutes).
altitude in. Hg.,rpm, hp  850-2200-36-8-15200
Fuel (minimum octane
aviation gasoline -  Low impeller ratio 90
CFR Motor Method fuel)  High impeller ratio 95
Fore and stroke, in.  6.125 × 6.875
Lisplacement, cu. in.  1823
compression ratio  6.7:1  6.3:1
height (dry), 1bs.  1272
Fropeller shaft,
SAE NO.  50
Carturetion  Holley C.G. 1375 C, E, R,
Sentes. 75-25, 8% 4ận.  or Stromberg  HA Or
FD-12E5, B7, H2,
1375DA-1 cartureto:
Ignition, dual  Scintilla SF9L2, 3, 4, or
Bosch SF9LU-3 magnetos
Ignition timing,
degrees BTC  Right 20
Left 15
• 2, 4  1,2,3,4
Certification rasis  Type Certificate No.  192
S1000CC101 04S1S  The manufacturer does not hold a production certificate for the production of
engines under this type certiticate  and, theretore, each engine  so produced is subject
to a detailed inspection  for workmanship and conformity with the approved data ty a
Civil Aeronautics Administration Agent.  In additio nupon satisfactory completion of the  the engine must have a satisfactory
run-in including 5 hours at rated power  and speed.
above, the agent will tag the engine with Tag Form ACA 186.
AT 220 degrees permispectivelyinder head, barrel and oil inlet temperatures, 500 degrees F., 325 cegrees F., and
NOIE 2. Incorforates standard 68354 or uniflox 69115 pistons.
SOTE GR- 1820E-  0-10. to beats me fear it system and otherwise similar to Mode.
NOTE 4. Eligible with torquemeter number 413516 at a weight increase of 12 1bs.
```

## ADs (1, in force first)

- [AD 51-12-01](https://openairdocs.org/ad/51-12-01): Piston Pins · Wright Aeronautical Division, Curtiss-Wright 718C9GB1, Military Cyclone R-1820 Series, Cyclone 702C9GC1 and 29 more

## Registered aircraft by registry model (OpenAirDocs)

- [Wright 718C9GB1](https://openairdocs.org/engine/wright-718c9gb1): 0 aircraft (registry code 67195)

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