# TCDS Group 3 Armstrong: Armstrong-Siddeley

- Type: Type certificate data sheet
- Status: Current
- Holder: Armstrong-Siddeley
- Revision: 0
- Product: Engine
- Data sheet PDF: https://openairdocs.org/files/sha256/a0/d5/a0d5aadaab5a457eb72bc172d6ef43068a867c86c51acfeac7d4b8cf81d6b0f1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D283FF2415795838862572C0006A4458.0001
- Page: https://openairdocs.org/tcds/Group%203%20Armstrong

## Models (1)

As the data sheet lists them.

- Genet Mark II

## What the data sheet says

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

```text
ARMSTRONG-SIDDELEY
MODEIS: Genet Mark II
I-C. NUMBER: Group 3
Model  Genet Mark II
Type  SRA
Rating:
Maximum continuous,
hE. Ipm, at S.I.
press. alt.  80-2200-S.L.
Take-off, hp, rpm,
at full throttle  80-2200
Bore, in.  4.00
Weight (dry) lbs.  203
Certification basis  Group 3 (Manufactured in foreign
country prior to June 20, 1931.)
```

## 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

## PMA parts (OpenAirDocs) (1)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this data sheet's models, so check the FAA record before relying on it. Newest first.

- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105311111320260722204346.0001): Swift Fuels, LLC · PMA PQ04423CE · For Genet Mark II · Jul 17, 2026

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