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Exhibit 4.7    
    


Execution Copy  


 
 

SECOND SUPPLEMENTAL INDENTURE    
    


        This SECOND SUPPLEMENTAL INDENTURE, dated as of November 18, 2004, among Aircraft Braking Systems Corporation, Engineered Fabrics Corporation and Aircraft
Braking Services, Inc. (collectively, the "Guaranteeing Subsidiaries"), each a subsidiary of K&F Industries, Inc. (a permitted successor of K&F Acquisition, Inc. (the "Issuer")),
a Delaware corporation (the "Company"), the Company and U.S. Bank National Association, as Trustee. 


W
I T N E S S E T H 


        WHEREAS,
the Issuer and the Trustee entered into an Indenture (the "Indenture"), dated as of November 18, 2004, pursuant to which the Issuer issued $315,000,000 in principal
amount of 73/4% Senior Subordinated Notes due 2014 (the "Notes"); 


        WHEREAS,
the Company is a permitted successor to the Issuer under the Indenture; 



        WHEREAS,
Section 9.01(8) of the Indenture provides that the Company, the Guarantors and the Trustee may amend or supplement the Indenture in order to add Subsidiary Guarantees
with respect to the Notes, without the consent of the Holders of the Notes; and 


        WHEREAS,
all acts and things prescribed by the Indenture, by law and by the Certificate of Incorporation and the Bylaws (or comparable constituent documents) of the Company, the
Guaranteeing Subsidiaries and the Trustee necessary to make this Second Supplemental Indenture a valid instrument legally binding on the Company, the Guaranteeing Subsidiaries and the Trustee, in
accordance with its terms, have been duly done and performed; 


        NOW
THEREFORE, to comply with the provisions of the Indenture, and in consideration of the foregoing, each Guaranteeing Subsidiary, the Company and the Trustee mutually covenant and
agree for the equal and ratable benefit of the Holders of the Notes as follows: 


ARTICLE 1  


        Section 1.01.    This Second Supplemental Indenture is supplemental to the Indenture and does and shall be deemed to form a part of, and
shall be construed in connection with and as part of, the Indenture for any and all purposes. 



        Section 1.02.    This
Second Supplemental Indenture shall become effective immediately upon its execution and delivery by each of the Guaranteeing Subsidiaries, the
Company and the Trustee. 


ARTICLE 2  


        Section 2.01.    Each of the Guaranteeing Subsidiaries hereby agrees to be bound by the terms, conditions and other provisions of the Indenture
with all attendant rights, duties and obligations stated therein, on a joint and several basis with the parties hereto and thereto, with the same force and effect as if originally named as a Guarantor
therein and as if such party executed the Indenture on the date thereof. 


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ARTICLE 3  


        Section 3.01.    Except as specifically modified herein, the Indenture and the Notes are in all respects ratified and confirmed (mutatis
mutandis) and shall remain in full force and effect in accordance with their terms. 


        Section 3.02.    All
capitalized terms used but not defined herein shall have the same respective meanings ascribed to them in the Indenture. 


        Section 3.03.    Except
as otherwise expressly provided herein, no duties, responsibilities or liabilities are assumed, or shall be construed to be assumed, by the
Trustee by reason of this Second Supplemental Indenture. This Second Supplemental Indenture is executed and accepted by the Trustee subject to all of the terms and conditions set forth in the
Indenture with the same force and effect as if those terms and conditions were repeated at length herein and made applicable to the Trustee with respect hereto. 



        Section 3.04.    THIS
SECOND SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 


        Section 3.05.    The
parties may sign any number of copies of this Second Supplemental Indenture. Each signed copy shall be an original, but all of them together
represent the same agreement. 


        Section 3.06.    The
headings herein are inserted for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of,
this letter agreement. 


        Section 3.07.    The
recitals hereto are statements only of the Company and the Guaranteeing Subsidiaries and shall not be considered statements of or attributable to
the Trustee. 


[Signature Page to Follow]


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        IN
WITNESS WHEREOF, the parties hereto have caused this Second Supplemental Indenture to be duly executed and attested, all as of the date first above written. 



	 	 	AIRCRAFT BRAKING SYSTEMS CORPORATION
	 	 	 	 
	 	 	By:	/s/  KENNETH M. SCHWARTZ      

	 	 	Name: Kenneth M. Schwartz

Title: President
	 	 	 	 
	 	 	 	 
	 	 	ENGINEERED FABRICS CORPORATION
	 	 	 	 
	 	 	By:	/s/  KENNETH M. SCHWARTZ      

	 	 	Name: Kenneth M. Schwartz

Title: President
	 	 	 	 
	 	 	 	 
	 	 	AIRCRAFT BRAKING SERVICES, INC.
	 	 	 	 
	 	 	By:	/s/  KENNETH M. SCHWARTZ      

	 	 	Name: Kenneth M. Schwartz

Title: President
	 	 	 	 
	 	 	 	 
	 	 	K&F INDUSTRIES, INC.
	 	 	 	 
	 	 	By:	/s/  KENNETH M. SCHWARTZ      

	 	 	Name: Kenneth M. Schwartz

Title: President
	 	 	 	 
	 	 	 	 
	 	 	U.S. BANK NATIONAL ASSOCIATION,

as Trustee
	 	 	 	 
	 	 	By:	/s/  CAUNA M. SILVA      

	 	 	Name: Cauna M. Silva

Title: Vice President




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Exhibit 4.7


SECOND SUPPLEMENTAL INDENTURE