Let me start by clearing up a couple of misconceptions.
First: When
Steel Force was being built,
ACE News published a photograph of a Morgan-built steel coaster car and pointed out that it has eight guide wheels (two for each axle). What was not mentioned in that caption is that the Arrow Runaway Train cars are practically the same, with two axles, and dual guide wheels on both axles. It's a necessity when the axles are able to yaw, and you can see this on the original patent issued to Karl Bacon and Ed Morgan. Yes, that's Ed Morgan as in Dana Morgan's dad. You can see that patent at
http://capital2.capital.edu/admin-staff/dalthoff/bobsled.html .
Morgan's steel coaster cars are almost identical in basic mechanical design to the Arrow Runaway Train cars except for one significant difference: while Arrow put the axles above the car spine, as shown in the patent, Morgan puts the axles below, so the Morgan car rides higher on the track.
Second item: Arrow has not significantly changed the multi-element looping car chassis. In 1989 or 1990 (just in time for
Steel Phantom) they switched from 8" to 12" road wheels, and in 1999 they added a safety bracket to the last axle of the train. All of the Arrow looping coaster trains, from the
Corkscrew at Silverwood to the
Tennessee Tornado at Dollywood,
including Drachen Fire, use the same basic design.
Phantom's Revenge is using the running gear from the
Steel Phantom train. Basically all the same hardware as
Steel Phantom. Which is a good thing, because Morgan's usual coaster car might not be flexible enough to negotiate that first drop...but the Arrow trailered train is known to work on that track. Basically, Morgan has designed a new shell, with new seats and lap bars, to fit the Arrow chassis. It's that simple. Why do people keep making it more complicated than it is?? :)
--Dave Althoff, Jr.