I got a new street car and got the GHB power trucks and what a difference in scale compared to the MTH version. The Gorgi car has interior seats so when I had the floor off I put in 15 of the Kline sitting people, I had to cut their legs off (ouch) to fit in the seats because they are close together, but how often to you see an empty streetcar??
The car itself runs real well just a little gear noise, but that goes away when you are running your other trains. The two power trucks are a straight forward install and have lots of little gears to transfer power to the drive axle. All the wheels are nickle plated and provide electrical pick-up. Below are some pics...
I don't have that model to compare with. I always thought the MTH version was 1:50 also. But looks like it is larger. My one beef was it sits way to high. It would look alot better with scale wheels...I also my original post the pictures got duplicated, don't know how that happens???
The power trucks came from GHB International in Maryland, they are $160 shipped...You get two indentical trucks and a working metal pole with tie down hook. The trucks have a DC motor and lots of brass gears. The third rail pick up is a button instead of a roller so they have a nice low profile and the scale wheels don't hurt either. The trucks are a drop in replacement for the dummy trucks. As far as removing the body goes, it is only needed if you want to install the pole. I did. You will see 4 metal poles in the body, the floor is installed by a press fit into these poles. The only way to access the inside is to ascertain the postion of the poles with relation to the floor and use a 3/16 or a size smaller drill bit to drill out the mounting points, two of which are under the front truck, you can get the floor off by getting the rear part off first, it is held in place by a small metal post and then disengaging the front from the nose of the body. After the body is off you can install the pole, pretty straight forward, comes with good instructions. I super glued a brass tube slightly bigger over the inside metal pole, #3 from the front...While it set up I assembled the copper strips and installed the motors, both of which are identical so you have all wheel pick up and two axles powered, one on each truck. Oil and grease the gears and give it a test ride.
Now you are ready to put the floor back in. The brass tube I threaded for a 2:56 screw. You only need to use one. With the floor being a tight fit and held in place be the rear and the front, you may not need the screw. I know this sounds rather lengthy but the actual time was about 1.5 hours for complete conversion. Using a Lionel transformer is not the best control because of the usual 5-6v on point. The start speed at the minimum is slightly high, I think a better way to lower the starting speed might be to go with a rheostat, were you would have a 1-5v control and higher...
As far as scale goes, 1/50 is only 4% smaller than 1/48. That's imperceptible to most people, I suspect.
According to my math the difference is even less than 4% which would make it even less perceptible. The decimal equivalent of 1/48th is 0.0204 and 1/50th is 0.0200. That difference is 2%.
Applying that to the various Detroit PCC O gauge models, the post-war Detroit PCC’s were 49 1/2 long. A true 1/48th scale model of that car would be 12.12” long. A true 1/50th scale model would be 11.88” long, almost ¼” shorter, or 2%.
Remember there were narrow gauge PCC cars made. They were smaller. Don
I recognize that photo as one of the Los Angeles Railway Corp. PCC’s. Yes they were smaller than the post-war Detroit PCC cars discussed above as they were a pre-war design. But despite their narrow track gauge (3’ 6"), at 46’ long by 8’ 4” wide, they were actually the same length and width as the majority of the pre-war single-end PCC’s used by other cities with wider track gauges, according to two PCC reference books I have. I realize that defies logic - I guess they had to go very slowly around curves to keep from tipping over!
However, what you are probably comparing them to are the other PCC cars which ran in the LA area, the Pacific Electric double-end PCC cars, which were almost 5 feet longer and 8” wider than the single-end LA Railway cars.