The old SKU is ROCKG109
Used for:
1100mm PT-17/ HS123/ Beechcraft/ Waco/ Critical Mass/ F2G/ P-51/ NXT
980mm P-47/ P-40/ Ki-61/ P-39 /
1100mm F3A/ MXS/ Zero/ LED Firefly/ Typhoon /
1200mm Super EZ V4/ Falcon/Ranger / Kingfisher /Flash / 1.1M P51D_Mustang_Dago_Red