Exhibit 24.1

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

     /s/ J. ROBERT ANDERSON
J. Robert Anderson

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ CHARLES F. BOLDEN JR.
Charles F. Bolden Jr.

Dated: January 23, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ JAMES J. DIDION
James J. Didion

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ DAVID A. LORBER
David A. Lorber

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ JAMES M. OSTERHOFF
James M. Osterhoff

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ TODD R. SNYDER
Todd R. Snyder

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ TIMOTHY A. WICKS
Timothy A. Wicks

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for his and in his name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on his behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ ROBERT C. WOODS
Robert C. Woods

Dated: January 17, 2007

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of GenCorp Inc. hereby constitutes and appoints Yasmin R. Seyal and Mark A. Whitney, and each of them (each with full power to act alone), her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for her and in her name, place and stead, in any and all capacities, to sign the Annual Report on Form 10-K of GenCorp Inc. for the fiscal year ended November 30, 2006 on her behalf, and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact or agents, or any of them, or their or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

      /s/ SHEILA E. WIDNALL
Sheila E. Widnall

Dated: January 17, 2007