DD(Dad’s Diary) 49

A Tale of the 2 Helicopters! My Time working on the H2 and H3 were quite different for me. The H3 had a separate Accessory Gearbox , powered by the  Turbo-Jet Engines , so when 1 of them was started , Automatic Rotor Blade Fold could spread the blades (They are folded between flights , for easy storage aboard ships , and many other electrical systems ). Some electrical Systems were the same for me to Maintain , but Most were different ! The Electrical    Generators were similar , but the H-2 powered the Generators when the Rotor-Blades were Spinning , But the H-3 powered the generators when the Engines were started , separate from the Rotor Blades. So the  4 VH-3’s  had a different Electrical System , A tiny Generator could be started by 1 Engine , and it could Power Air conditioning  , Blade Fold , and other Electrical Systems , so when they were on the Ground At The Pentagon , they could keep the Cabin cool .

   So much more to add , so to be continued…