UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: October 9, 2013 4:00 P.M.
Form: S-4
CIK: 0000040888
Company Name: GENCORP INC
File Number: 333-190199
CIK: 0001582239
Company Name: Aerojet Rocketdyne of DE, Inc.
File Number: 333-190199-04
CIK: 0001582241
Company Name: Arde, Inc.
File Number: 333-190199-03
CIK: 0001582242
Company Name: Arde-Barinco, Inc.
File Number: 333-190199-02
CIK: 0001262898
Company Name: AEROJET ROCKETDYNE, INC.
File Number: 333-190199-01