# STC SE2500SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Scott's Bell 47 Inc, United States
- Description: Modification to higher compression ratio.
- Applied: July 28, 1977
- Status date: August 7, 2014
- Product: Engine
- Certification basis: Part 13, Part 21
- Data sheets: [TCDS E-279](https://openairdocs.org/tcds/E-279)
- Certificate PDF: https://openairdocs.org/files/sha256/44/c9/44c97fc1c9b7f6a8f00312f6318d9f136dddc403b271501c3fdf09be73146587
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/390DDBB960D623DB86257DC600758A3C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE2500SW

## ADs that name it (0)

None.

## Approved models (2)

- Lycoming Engines VO-435-A1E ([TCDS E-279](https://openairdocs.org/tcds/E-279))
- Lycoming Engines VO-435-A1F ([TCDS E-279](https://openairdocs.org/tcds/E-279))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Part 13 of the Civil Air R egulations.

Original Product --Type Certificate N umber :

Modification to higher compression ratio in accordance with Texas Helicopter Corporation THC Data L435HC, dated July 28, 1977, or Revision 2, dated April 10, 1997, or later FAA approved revisions.

1. Take-off power -260 SHP, 5 minutes, 3200 RPM.

2. Maximum continuous power -220 AHP, 3200 RPM.

3. Performance as shown for Lycoming VO-435-B1A.

4. Oil Temperature -113 degrees C maximum; Fuel 100/130 grade aviation gasoline.

5. The installer must determine whether this design change is compatible with previously approved modifications.

6. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other pers on written evidence of that permission.

This certificate and the supporting data, which is the basis for approval, s hall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the A dministrator of the F ederal A viation A dministration.

Scott’s-Bell 47, Inc.

100 Minnesota Avenue Le Sueur, MN 56058

E-279 M ake : AVCO Lycoming M odel : VO-435-A1E; VO-435-A1F Date of application : July 28, 1977

Date of issuance : September 02, 1977 Date reissue d : 3/4/86; 7/27/87; 4/30/04; 12/15/10; 8/7/14

Date amended : 10/23/80; 4/10/97 Rev. 2

B y direction of the A dministrator

Original Signed By:

Karol Mordasiewicz (Signature) Karol Mordasiewicz Manager, Airframe and Administrative Branch Chicago Aircraft Certification Office

(Title)

## Every issue (1)

- August 7, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/44/c9/44c97fc1c9b7f6a8f00312f6318d9f136dddc403b271501c3fdf09be73146587)

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