Originally Posted by ron m:
According to the 1935 edition of available replacement parts, there were four different six-wheel trucks available — P/N 414T-5, 414T-6, 418T5, 418T-10. The -5s had a pickup shoe. The wheel for these trucks was P/N 418T-1.
Now which cars used which truck:
414T-6: 400T, 412, 413, 414, 416, 420, 421, 422, 424, 425, 426.
414T-5: 400W, 412, 413, 414, 416, 420, 421, 422, 424, 425, 426.
418T-10: 418, 419, 431, 490.
418T-5: 418, 419, 431, 490.
Ron M
If true, what this states is that the Girard cars, the Blue Comet cars, and the State cars, as well as the 400 tender, all use the same 6-wheel truck, (Ron's #414T truck) and use the smaller 500 series wheels.
This explains how the couplers on all of these is at the "lower" ("dropped"??) height; all these cars are compatible with the 400E (whose tender uses the same truck and wheels), and also with the 9E.
The 4-wheel truck 428, 429 cars use the bigger 200 series wheels, and so they have a higher coupler height. The 9E and the 400 tender can still reach them, but it is a stretch.
The 6-wheel 418, 419 passenger cars use the 500 series wheel, but they have their own 6-wheel truck (Ron's #418T truck), not the same truck as the State cars: This special 6-wheel truck raises the car up to the height of the 428 cars, even though the 418 cars only use the smaller 500 series wheel. This keeps the 418 series and the 428 series at the same coupler and body height.
The 200 series freight use the big 200 series wheels, but the 200 series freight have the highest coupler height of all, slightly higher than the 418 and 429 passenger cars.
I do not know whether the 4-wheel 428 passenger cars and the 4-wheel 200 series freight use the same truck. If they do not, that would explain how the freights are a little higher than the 418 passenger cars. They do use the same 200 series wheels; so if they do also use the same truck, there must be some other construction detail that makes the coupler higher on the freight cars.
david