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Airwire and USA Engines

2551 Views 17 Replies 9 Participants Last post by  Bill Swindell
I have an Airwire system in a trailing boxcar with a power lead to the rear of a USA F3A. I also use the same configuration with the USA GP7. I don't double head them, only running them solo. At most, I get only one hour of running time. I took one of the motors out of the F3A figuring the run time would increase. Nothing doing. I haven't checked out whether the batteries are in proper working order. When I run, I always charge them fully. Beside a possible battery problem, are there any other things I should be looking for. Has anyone else had this problem ? I know USA engines are power hogs, but ???

Thanks in advance.

Pat McCarty
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Where did you get 9Ah batteries--what size are you using? Best I seem to find is 5Ah and those are D cells.

Well that makes sence. My GP-38 has a single 4500mah 14.4 battery with the airwire and phoenix p5 (ripped out the smoke unit and factory light boards). So I guess I should get 2.5 hours--though my packs are designed to be removed thru the hatch in the top of the hood to charge up, and swap out. So I guess with 2 packs I get 5 hours of fun. I guess I better work on the layout faster to find out.


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