Click Images For Larger View VF-31J Battroid (Kai) VF-31J Fighter (Kai) VF-31J Fighter (Kai) schematics	Variant VF-31J Siegfried Kai Notes Debut: Macross Delta, Episode 26 Description: Near the end of the Second War for Windermerean Independence, Δ (Delta) Squadron's VF-31J Siegfried (of the Tactical Sound Unit 'Walküre') was rebranded with an updated paint scheme and a Deaths Head insignia upon the dorsal fuselage.
Information Courtesy of the Macross Compendium: www.macross.anime.net/wiki/Main_Page Additional Information Courtesy of the Wikipedia Japan: https://ja.wikipedia.org/ Images From - Macross Variable Fighter Designers Note, Macross Modelers Vol. 1 pamphlet, and Macross Delta: Gekijyou No Walkure pamphlet C. Wilson - Writer, Editor and Colorist