Engine startup order on the Propliners (DC3, DC4 etc)
Join Date: Sep 2007
Location: NTH HARBOUR,NZ
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old fella, the atm on gtc models always dropped off line on engine starts. Not enough air to sustain both eng start and atm. This is true of all models, untill apu's were introduced. Always started 3-4-2-1, mostly for ground handeling reasons. On twins 2-1, and on tri-jets 3-2-1. A lot to do with hyd and elec too.
Join Date: Feb 2008
Location: Wingham NSW Australia
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ATM's ON GTC MODELS ALWAYS DROPPED OFF LINE ON ENGINE STARTS.
Brakedust. Your blanket claim that the ATM would always drop off line during engine start on all GTC/ATM equipped C130's is simply incorrect. I don't know how many starts Brakedust has conducted on such C130's. What I do know is that Brakedust is mistaken. In my ten years on two GTC/ATM equipped models (A & E) I can say that the ATM did occasionally drop off line during engine start, it WAS NOT a regular occurrence on those RAAF aircraft which I operated. In fact, the RAAF C130 had a "Battery Engine Start Button" which could be used to shut off the ATM air supply during engine start in "Hot/High" conditions. The start could be converted from a normal start to a "Battery Engine Start" if engine acceleration was slow or it could be conducted from initiation. It would be helpful if Brakedust were to give us all some insight into his experience on the C130, maybe on his personal profile.
Last edited by Old Fella; 25th Jun 2009 at 12:38. Reason: Additional Info
