500's
Both Denis De Ferrantis 500s seem to have been HMs with matching data plate number , unlike Trans World Helicopters HE from the same time which had an E c/n
EI-ATY Hughes 369HM 49-0036M EI-ATY,G-BDKL,G-VNPP,G-HSKY · w/o
EI-AVN Hughes 369HM 52-0214M N9037F,EI-AVN,G-RAMM,G-KBOT,
G-HAUS,G-PETO
EI-AUA Hughes 369HE 59-0102E N9012F,EI-AUA,G-AYNK,D-HCAB,HB-XGA,(D-HXGA),HB-XGA, D-HHFD