02-09-2012, 01:11 PM
Sumpter250 Wrote:....I know that the Atlas trucks, have the metal ( for electrical pick-up ) pieces mounted on the side frames, where the older Athearns, have them mounted on the gear case. These pick-ups bear on the metal axles, so the Athearn trucks with the gear case bearing the engine weight would transmit sound far better than trucks where there is some flexibility in the engineering plastic support between the weight bearing contact with the axles, and the gear box on which the loco's weight rests...
I did check the Genesis GP15 trucks and. They have a similar design as Atlas has. Another point are P2K trucks. They have the same basis design as Athearn RTR but they are significant less noisy.
ps. Might be my Genesis GP15 is an exception. I had a look at the Genesis MP15AC. It has the same Atlas like design and is a very soft runner.
pps. The Kato GP35 trucks (soft runner) are similar to Atlas design too.
Reinhard