What it approves
Installation of a MTV-11-C/188-17f 2-blade, 74 inch diameter, constant speed propeller, with lightweight composite blade construction and associated hardware
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 SA02508LA
This Certificate issued to
Part 23* of the Federal Aviation Regulations and Part 4a of the Civil Air Regulations as amended on November 1, 1947. *Certification basis set forth on continuation sheet 3.
Description of Type Design Change: Installation of a MTV-11-C/188-17f 2-blade, 74 inch diameter, constant speed propeller, with lightweight composite blade construction and associated hardware in accordance with Warnock’s Installation Instructions, Document #004-000 Revision F issued October 3, 2014.
Limitations and Conditions: The installation should not be incorporated in any air plane unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the air plane. The approval of this modification applies to the above noted airplane model series only. 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.
(Continued on page 2)
Edward R. Warnock 6841 Funnel Way Garden Valley, CA 95633-9449 A-694
Luscombe (landplane)
8E and 8F Original Product Type Certificate Number :
Date of application : October 8, 2007
Date of issuance : November 13, 2014
(Signature) Manager, Propulsion Branch Los Angeles Aircraft Certification Office
(Title)
Number SA02508LA
This propeller change incorporates an MT Model P -237-4 spinner, an AVIA -MT P- 860-3 hydraulically controlled propeller governor in a Luscombe Model 8E or 8F landplane, w hich has been previously modified with the installation of a Textron Lycoming O -320 engine with propeller governor pad and baffling per STC SA4- 173 or STC SA344CE. This Luscombe STC modification also incorporates installation of a propeller governor contr ol cable and knob, a manifold pressure gage, and relocation of the carburetor heat control knob and engine oil cooler. In addition, the brakes have been modified according to Renaissance Aircraft STC SA01094WI. In conjunction with this installation, atta ched is the FAA A pproved the Supplemental Airplane Flight Manual, EW-SAFM-02 dated October 1, 2014, and Instructions for Continued Airworthiness, Document # EW-2014-011 dated March 24, 2014.
This STC is limited to Luscombe Model 8E and 8F landplanes with serial numbers (S/Ns) 6674 and below. This STC is not applicable to airplane S/Ns S-1 and above.
Propeller diameter is limited to 188cm (74 inches) with low pitch at 8.5 degrees +/- 0.2 degrees, high pitch at 33.0 de grees +/- 1.0 degrees, measured at blade radius station 22.75 inches. Weight and balance limits are referenced in Section 6 of the FAA Approved Supplemental Airplane Flight Manual.
The operator should avoid continuous engine operation between 2050 and 2300 RPM when above 22 inches manifold pressure.
*Certification Basis continued:
In addition to compliance to Part 4a of the Civil Air R egulations, compliance to §§ 23.307, 23.337, and 23.341 of Amendment 48, 23.613 of Amendment 45 were complied with . Compliance to
23.777, 23.779, and 23.781 of Amendment 51 of the Federal Aviation Regulations were demonstrated by Equivalent Level of Safet y (ELOS) Memo No. ACE -10-11 dated November 2, 2011, and ELOS Memo No. ACE-10-10 dated November 17, 2011.
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