Actually there are 3 Spang viper right now at AV, 91-0421 (23rd FS) and 90-0813 and 90-0827 (22nd FS), the last one arrive on Monday, while the other two arrive in mid July. They replace other three Spang Viper, the 90-0833 (22nd FS) and 91-0361 and 92-3918 (23rd FS) that arrived in April and come b...