# STC SE02261CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Cygnet Aerospace Corp., United States
- Description: Increase engine displacement from 470 cubic inches to 520 cubic inches in the Teledyne Continental Motors IO-470-D, -E, -F, -H, -L, -M, -N, -R, -S, -U, -V, -VO engines models with a flat rating of 260 HP.
- Applied: August 16, 2005
- Status date: December 13, 2018
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3E1](https://openairdocs.org/tcds/3E1)
- Certificate PDF: https://openairdocs.org/files/sha256/b6/48/b6487050abc193e7617b628386fddbbf23430fdd67d88b0b6a3e394bbf6f94ed
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/58DB915DC8DEF77886258366005CEFCA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE02261CH

## ADs that name it (0)

None.

## Approved models (13)

- Continental Motors IO-470-D ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-E ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-F ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-G ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-H ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-L ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-M ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-N ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-R ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-S ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-U ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-V ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Continental Motors IO-470-VO ([TCDS 3E1](https://openairdocs.org/tcds/3E1))

## What the certificate says

Some pages are OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate has been reissued to replace the original certificate reported lost.

Number: SE02261CH This certificate issued to: Cygnet Aerospace Corp.

1971 Fearn Avenue Los Osos, California 93402 Part 23 of the Federal Aviation Regulations.

Original Product Type Certificate Number : 3E1 Make: Teledyne Continental Motors Model: IO-470-D, -E, -F, -H, -L, -M, -N, -R, -S, -U, -V, -VO Description of Type Design Change:

Increase engine displacement from 470 cubic inches to 520 cubic inches in the Teledyne Continental Motors 10-470-D, -E, -F, -H, -L, -M, -N, -R, -S, -U, -V, -VO engines models with a flat rating of 260 HP.

1. Compatibility of this design change with previously approved modifications must be determined by the installer.

2. If the holder agrees to permit another person to use this certificate to alter product, the holder shall give the other person written evidence of that permission.

Date of Application: August 16, 2005 Date Reissued: December 13, 2018 Date of Issuance: March 15, 2006 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) TOMINISTRATO Support Section Manager, Technical and Administrative Los Angeles ACO Branch

FAA Form 8110-2(10-68) Pade 1 of 2

NOTE:

**DO NOT DELETE THIS PAGE.**

**DO NOT ADD ANY DATA TO THIS PAGE.**

**THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.**

## Every issue (1)

- December 13, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b6/48/b6487050abc193e7617b628386fddbbf23430fdd67d88b0b6a3e394bbf6f94ed)

---
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.