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Preordered this 2015 Volume 1 model from Nassua Hobby back in March, shipped this past week arriving yesterday.  A little back story when it comes to my experience with PS3 engines.  I have had three total PS3 engines, yet not one has now found a permanent home in the engine house.  My past experiences have not been overly positive.  I took possession of a B&O GP35 several years back.  That initially ran with some issues, specifically it would "lose" the DCS signal on the track.  It came down to the wiring location within the body of the loco and after slight re-routing of a wire harness, it ran very well.  I then took possession six months ago of a Rio Grande SD50.  This model simply didn't run out of the box.  It would startup, but it simply would not move down the track.  Finally, my third PS3 engine is the one being highlighted in this review.  Does it have what it takes to find a permanent home out west on my Rio Grande switching layout?  Let's take a look.

 

Packaging (9/10)

The model shipped in the familiar purple Premier box, with the model sticker on the outside flap.  I removed the styrofoam enclosure and subsequently the top cover.  The model was well wrapped, which I marvel due to the fact that I can never get it took look so good when placing a model back into the box.  Also in the box was a grey snowplow, a tube of proto smoke and replacement traction tires.  Overall, nothing remarkable or special with the packing, but performed nicely in terms of protecting the loco during shipping.

 

Adding to DCS

Since I run a DCS system the first test is to see if the DCS system can read the engine and pull in the appropriate engine details.  I simply added the engine using the system menu on the remote.  DCS found the engine without issue, assigning an appropriate address.  I then proceeded to start the engine, which it did without fail. 

 

Sounds (10/10)

My one criticism of PS3 has always been the sounds weren't remarkably better than that of PS2, especially true with the early PS3 releases.  In fact Lionel Legacy in my opinion had better sounds than PS3 and PS2, really wasn't a contest.  However, in my brief time with the SD50 several months back and now this model, MTH has really made a dramatic turn for the better when it comes to sound quality.  Bottom line the sounds are FANTASTIC!  As you can see in the video below, the sounds have much body, are robust and have depth in terms of simulating what you actually might hear trackside. You won't be dissapointed.

 

Detail (9/10)

The model continues MTH's tradition of producing very detailed models.  The grills on the side of the body are "see thru". Separately applied details include, bell, grab irons, and snow plow.  Decals litter the model and include legible build plate and warning decals.  Finally, eyelets litter the top of the model.  In the photos below one can see the fine detail in the trucks as well.  Bottom line MTH continues to produce high detail in the premier line, which is expected at this price point.

 

 

 

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Performance (8/10)

During my hour or so of testing, I'm quite pleased at the locos performance.  I ran into some minor issue at slow speed of the loco stopping or lunging back and forth as though a gear was caught in something.  As with many Premier line locos you can achieve smooth slow running at around 4 SMPH.  Lionel Legacy models continue to be in my opinion the top slow runners.  I can without issue have smooth running in TMCC mode under DCS at 1 SMPH without issue.  Not to say this loco doesn't perform well, but if you are looking for exceptional smooth running at low SMPH, you might be disappointed.  Overall, however, as the loco went through the different speed steps the sounds kept up making for a very realistic and enjoyable experience during the run sessions.  The gearing was very quite and was quite pleased overall with the performance.

 

Final (9/10)

Finally!  I have a PS3 locomotive that met my expectations right out of the box, cementing its place in the engine house.  The sounds are excellent and the performance is equally satisfying.  If you are in the market for a classic Tunnel motor model, MTH has delivered in this 2015 Volume 1 release.  

Attachments

Images (3)
  • 20150718_152653953_iOS
  • 20150718_152637170_iOS: Notice the fine detail on the trucks
  • 20150718_152620808_iOS
Original Post

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Your engine might need to be broken in to smooth out low speed performance. I have found, however, that Proto-Sound 2 and 3 engines don't run as smoothly as LEGACY engines at crawl speeds. Locomotives equipped with the ERR Cruise Commander have better crawl speeds than Proto-Sound 2 and 3 models. I suspect that this might have something to do with the fact that Proto-Sound 2 and 3 engines still employ a tach reader strip for speed control whereas LEGACY and ERR Cruise Commanders do not.

Originally Posted by catnap:

Your engine might need to be broken in to smooth out low speed performance. I have found, however, that Proto-Sound 2 and 3 engines don't run as smoothly as LEGACY engines at crawl speeds. Locomotives equipped with the ERR Cruise Commander have better crawl speeds than Proto-Sound 2 and 3 models. I suspect that this might have something to do with the fact that Proto-Sound 2 and 3 engines still employ a tach reader strip for speed control whereas LEGACY and ERR Cruise Commanders do not.

catnap,

 

Right you are.  The difference in the way MTH and Lionel employ speed control does lead to this difference in slow speed running.  Since I'm on a switching layout, slow control makes all the difference so depending on your layout, one's mileage may vary.  Really appreciate the added info. I'm sure it will help many decide on whether to go with MTH or wait for the Lionel variant.  Much appreciated.

That is a beautiful engine, by the way.

 

I have 2 MTH Proto-Sound 3 Chessie System SD50s (20-20424-1) and they are nicely detailed, sound great and run exceptionally well just like your SSW SD45T-2.

 

I appreciate the review on this model because I have 2 SCL SD45s (20-20457-1) preordered and I believe these will be next to arrive in a couple of weeks.

Originally Posted by SPSF:

Very nice and nice to see that they are using the correct Dash 2 truck sideframes, the early releases had SD50 style sideframes.

 

I thought the SD50 had the same trucks as the SD40-2/SD45-2 models, i.e. the HT-C truck.

 

I would love to see a standard SD45 in this scheme.

 

The "pre-Dash 2" SD series units would have had the older "SD" trucks, thus different than the photos above.

 

Originally Posted by Engineer-Joe:

Well I dropped the ball again on this preorder. I decided I needed to focus on modern only so I ordered the SD80MAC instead.

 What a great looking engine this is. WOW!

Where's Matt. I need consuling!

Joe. I feel your pain. Wasn't in the budget. Saw the Proto-2 version and thought MTH did a great job. It was also available with scale wheels and fixed pilots. The one I had my eye on was the Bicentennial Cotton Belt Unit.

Nice review! I was thinking of grabbing this one, but have been a bit hesitant due to the desire of building up my legacy line of engines. I'm a big MTH fan, but since I added Legacy along side my DCS; the Railsounds, equal detail, momentum control and super slow crawl speeds from Lionel have gotten the best of me lately. 

Originally Posted by Marc C:

Nice review! I was thinking of grabbing this one, but have been a bit hesitant due to the desire of building up my legacy line of engines. I'm a big MTH fan, but since I added Legacy along side my DCS; the Railsounds, equal detail, momentum control and super slow crawl speeds from Lionel have gotten the best of me lately. 

Marc,

 

I hear you on the fantastic slow speed running of legacy engines.  I'm a huge fan. Today I placed a legacy GP35 on the track and was schocked at how much better the sound is from this MTH offering. Lionel still owns the slow speed running, but MTH really outdid themselves on this model. Enjoy!

FYI catnap and Chessie-- Legacy locos use a plastic ring with slots in it, to provide feedback to an optical sensor.  It's the same principle as the stripes used for PS2 and PS3, so that's not why Lionels run better.  ERR boards use back-EMF (which is the voltage GENERATED by the motor) to provide feedback for speed control.

 

The reason Lionels run better at very slow speeds, is that they use back-drivable gears (the wheels can turn the motor, as was the case with Lionel's Postwar worm gear drives.)  This means when one motor/truck gets "stuck," the second motor truck can help out by giving the first one a "push."  MTH, Atlas, etc., worm gears are self-locking.  The wheels cannot turn the motor.  So when either truck binds, the loco stalls.  Current draw increases.  The on-board computer ramps the voltage to achieve the commanded speed of 1 or 2 mph.  Eventually the stalled motor breaks loose and you get a little lurch.

 

Lionel took criticism for the "Odyssey lurch" back when they only had 32 speed steps to play with under the original TMCC.  So their engineers did a lot of research and came up with the solution of back-drivable gears.  (Actually all they had to do was to look at their own past!)  However, by the time that solution was implemented, Legacy had also reached the market, so there was a twofold improvement.  Lionel's redesign paid another dividend: because the worm is not pressed directly on the motor shaft, it's easier (and possible) to replace either the worm or the motor individually.  An MTH diesel will require an exact OEM replacement of everything at once.

 

So as you observed, Lionel's system is better.  But neither one is really ideal.  In all cases the flywheels are smaller than they should be, and the motors are generally of low quality; gear ratios and top speeds are high, which means some low-speed performance was left on the table.  For my thoughts on what SHOULD be under the hood of a scale diesel, see this thread.  WARNING it may make you want to change scales!

I have the SD45T-3 Missabe unit. I have to agree that MTH has really stepped it up on their sounds. The engine running sounds are great. I hardly ever use the PFA announcements as I think they are just ridiculously bad. The only sound I use regularly is the horn, so that is what I judge the sound quality by. In the past they have been hit & miss, but on the last three PS3 diesels I have bought the horns are very realistic (deep and throaty, like hearing a real train at a distance).  As for the slow speed running mine runs great at 3 SMPH but hesitates slightly at 2 SMPH. I have found all of my MTH engines will run great at 2 SMPH after a break in period of around 100 scale miles. Some will even run smooth at 1 SMPH.

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