Lincoln Bible The must be some mistake

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Lincoln Bible arrived this morning.  I have been flipping through it and reading various sections and then focused on 6.4 "Welding Carbon and Alloy Steel" and more specifically on  the charts in that sectrion for "Flux-Cored Arc Welding (Semiautomatic) Self Shielded"Even after reading the preceeding text looking at the charts I am lost on the specs shown. Example:  Page 6.4-23 Top of page has chart showing welding 10 ga to 1/4".  Look to the column for plate thickness 0.135 (10ga) and we see these values given:Pass  1Electrode Class E70T-4...............size  3/32    <--- is this the dia of the flux-core electrode wire (0.09375) ????? Wire Feed Speed in/min  185Current (Amp) DC+ 350    <---!!!!!!! For 10 gauge sheet??????   volts  29 - 30The rest of the values in the column are irrelevent for this conversation.  What am I missing?? Before I send off an inquiry to Lincoln asking for an explanation of these tables, can anyone here shed some light on this?Thanks!- MondoMember, AWSLincoln ProMIG 140Lincoln AC TombstoneCraftsman Lathe 12 x 24 c1935Atlas MFC Horizontal MillCraftsman Commercial Lathe 12 x 36 c1970- - - I'll just keep on keepin' on.
Reply:They are going to give you the fastest and most efficient data.  According to them, running 3/32 fluxcore is more efficient.  It was described to me years ago when I called that while it is possible to weld with smaller electrodes, time was the greatest variable to manage in efficiency.
Reply:Originally Posted by Scott YoungThey are going to give you the fastest and most efficient data.  According to them, running 3/32 fluxcore is more efficient.  It was described to me years ago when I called that while it is possible to weld with smaller electrodes, time was the greatest variable to manage in efficiency.
Reply:It wasn't written with the hobby welder as the primary target audience. It was written before the 110 phenomena as well.  I gathered from my reading of it, it was aimed at the student that was going to further his career which would introduce the welder to the larger industrial units.I think a lot of hobby welders could glean more from the other Lincoln book, "New Lessons in ARC Welding".
Reply:Yea l always scratched my head at a lot of that. l would look at it over and over until finally l asked a CWI what the hell they were talking about. I just assumed lt was for 100 % penetration….but it was exactly as stated above: efficiency. Ain't no way l'd be efficient with that flux core setting. Or half of what they approximate. Granted lt's a starting point but god damn dude. Some of their SMAW is way out there too. 6.7-8GTAW .080 butt joint with a .08 root gap 150 amps 1/16th filler wire.Thats crazy man. l would destroy that plate ha. That same page has a 3/4 plate, multi-pass U-Groove and for the fill passes they have 340-400 amps listed. That's savage. Can't imagine what that'd be like. I've never gone over 210 with tig and thats plenty of power if you ask me. But in retrospect...what do l know.
Reply:Check travel speed... often very high ... many also give quality such as "commercial" and "code"   The guidelines are there to make money as fast as you can.