pmostafiz Posted January 1, 2020 Share Posted January 1, 2020 7B engine. At first start, starting to was 810 but on the same day at 2nd & 3rd start, starting tit was 780 & 760. So many time we found this happened. Can anyone tell me what is the reason behind this to reduce starting tit at 2nd start. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted January 1, 2020 Share Posted January 1, 2020 2 hours ago, pmostafiz said: 7B engine. At first start, starting to was 810 but on the same day at 2nd & 3rd start, starting tit was 780 & 760. So many time we found this happened. Can anyone tell me what is the reason behind this to reduce starting tit at 2nd start. What is selection of TD SWs. Null or AUTO Munir Abbasi Quote Link to comment Share on other sites More sharing options...
pmostafiz Posted January 1, 2020 Author Share Posted January 1, 2020 TD SW Auto. I found so many time at different engine of our 4 aircraft C-130B. Is there any logical reason. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted January 2, 2020 Share Posted January 2, 2020 17 hours ago, pmostafiz said: TD SW Auto. I found so many time at different engine of our 4 aircraft C-130B. Is there any logical reason. Adjust START POT of TD control with TD tester Check NULL TIT Munir Abbasi Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted January 3, 2020 Share Posted January 3, 2020 Engine will be cold at 1st start making harder for starter to turn engine. Also FCU will be cold making CIT and CIP bellows respond differently. 2nd and 3rd start components, gearbox etc. will still be warm and make spin-up easier. Adjusting TD amp will make little difference as it is only limiting the maximum fuel flow during startup. I see this regularly on both A15 and D22A engines. As long as start TIT is between 750 and 830 (780 to 810 desired) and start time is between 39 and 61 seconds (GTC/APU start), there is nothing to be concerned about. Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted January 4, 2020 Share Posted January 4, 2020 20 hours ago, pjvr99 said: Engine will be cold at 1st start making harder for starter to turn engine. Also FCU will be cold making CIT and CIP bellows respond differently. 2nd and 3rd start components, gearbox etc. will still be warm and make spin-up easier. Adjusting TD amp will make little difference as it is only limiting the maximum fuel flow during startup. I see this regularly on both A15 and D22A engines. As long as start TIT is between 750 and 830 (780 to 810 desired) and start time is between 39 and 61 seconds (GTC/APU start), there is nothing to be concerned about. What pjvr99 said... Quote Link to comment Share on other sites More sharing options...
superbigbig Posted June 10, 2020 Share Posted June 10, 2020 跟壓力高度、場溫、溫度控制器的啟動限制都有關係 Quote Link to comment Share on other sites More sharing options...
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