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Forum: Rotorheads

23rd Apr 2007, 21:28

Replies: 1,327

Sikorsky S-76: Ask Nick Lappos

Views: 374,653

Posted By mrbob

Thanks

Yes, I probably did not word that question well. We had a tach gen. that was croaking, it went up to 97, down to 50, with engine out tone. The AC gen. was kicking off and on line. Old phase 2 bird,...

Forum: Rotorheads

23rd Apr 2007, 18:57

Replies: 1,327

Sikorsky S-76: Ask Nick Lappos

Views: 374,653

Posted By mrbob

A++, not B

Thanks much Nick, but I think that the AC gen. runs off the trans gearbox on the A++? You may have been referring to the B model ?

Forum: Rotorheads

23rd Apr 2007, 14:18

Replies: 1,327

Sikorsky S-76: Ask Nick Lappos

Views: 374,653

Posted By mrbob

76A++ question, for Nick Lappos

In a 76A++, Phase 2, if you had a faulty N1 tach gauge, would fall below 60% and then back to say 98%, would this cause the AC generator to come off and on line? Does the AC generator get its...

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