STC SA53NW

Supplemental type certificate · Merlyn Products Inc.

Holder
Merlyn Products Inc. · United States
Status
Current · Amended
Status date
May 7, 2010
Applied
January 29, 1972
Product
Aircraft · Single-Engine
Certification basis
Part 21
Data sheet
TCDSA-766

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Installation of Continental IO-360-C engine with McCauley propeller.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

Number SA53NW

This certificate, issued to: Merlyn Products, Inc.

7500 West Park Drive Spokane, WA 99224-5726

Part 4a of the Civil Air Regulations.

Original Product⎯Type Certificate Number: A-766 Make: Swift Museum Foundation, Inc. (Globe) Model: GC-1B

Description of the Type Design Change: Fabrication of engine mount per Merlyn Products, Inc. Top Drawing List 02-TDL, Revision N/C, dated December 21, 2009, or later FAA-approved revision. Installation of Continental IO-360 series engines including IO-360 series engines modified in accordance with STC SE01559SE, closure of wing tip slots and associated changes, in accordance with Installation Instructions, Merlyn Products, Inc. Report Number 02-1, Revision C, dated December 18, 2009, or later FAA-approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of the aircraft. (See Continuation Sheet on Page 3)

A copy of this certificate and Installation Instructions Report No. 02-1 must be maintained as part of the permanent records for the modified aircraft.

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

Date of application: January 29, 1972 Date reissued: July 21, 1986 Date of issuance: July 23, 1973 Date amended: July 07 1975; September 09, 1976; March 28, 1977;

July 21, 1986; June 03, 2005; March 23, 2009;

April 12, 2010; May 07, 2010

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title) Original Signed by Philip L. Forde

Number SA53NW Merlyn Products, Inc.

Issued: July 23, 1973 Reissued: July 21, 1986 Amended: July 07 1975; September 09, 1976; March 28, 1977; July 21, 1986; June 03, 2005; March 23, 2009;

April 12, 2010; May 07, 2010

SUPPLEMENTAL TYPE CERTIFICATE ADENDUM NO. SA53NW The conditions and limitations of the original specification apply except as follows:

This Addendum, which is part of Supplemental Type Certificate No. SA53NW, prescribes conditions and limitations under which the STC was issued and meets the airworthiness requirements of Civil Air Regulation 4a.

A copy of this Addendum must be maintained as part of the modified aircraft’s permanent records.

I. SWIFT MUSEUM FOUNDATION, INC. GC-1B (LANDPLANE -NORMAL CATEGORY) AS MODIFIED BY STC SA53NW

Engine: Continental IO-360 series engines including the IO-360 engines modified in accordance with STC SE01559SE

Fuel: 100 LL minimum grade aviation gasoline

Engine Limits: 210 HP @ 2800 RPM -Sea Level

Propeller and Limits: See Installation Instructions, Report Number 02-1 Static RPM 2800; No operating limitations

C.G. Range: 29.6 In to 33.0 In @ 1710 Pounds

Maximum Weight: 1710 Lbs

Datum: Forward face of firewall at bottom

Oil Capacity: 10 Quarts

Instrument Markings: Oil Temperature: 240 deg F (Red Line) Oil Pressure: 30 –60 psi (Green Arc) Air Speed: 52 mph to 90 mph (White Arc) 60 mph to 140 mph (Green Arc) 140 mph to185 mph (Yellow Arc) 185 mph (red line) Tachometer: 2200 - 2800 RPM (Green Arc) 2800 RPM (Red Line) Maximum

Note 1: Current weight and balance report including lis t of equipment in the certified empty weight must be in the aircraft.

Note 2: The closure of the wing tip slots may apply to the Tempco T-35 Buckeroo wing tips or Lift Tips per STC SA2358WE

- END -

FAA FORM 8110-2-1 (10-69) PAGE 3 OF 3 PAGES

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 1

MakeModelData sheet
Swift Museum Foundation Inc.GC-1BA-766

Every issue · 3

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
May 7, 2010Amended, currentCertificate
April 12, 2010Amended, earlier issueCertificate
June 23, 2005Amended, earlier issueCertificate