I realize this thread has been quiet for some time now, but im currently in the final stages of building Trumpeter's K5. So far its taken 10 months to build, and while in comparison to the Dragon kit it is extemely accurate, there are also some pitfalls. I dont know what Trumpeter was thinking when they made this kit, but they use about 20-50 ejector pins per sprew, its absolutely rediculous. Ive spent hours filling and sanding parts in places they should never have needed it, the main chassis peices have 3 large craters in them from ejector pins, and almost all the medium sized peices have at least one spot where a pin has put a mark into the peice. The deck on the generator car is the worst by far; the top is highly detailed, but the underside has about 20-30 holes in it on the visible part alone and another 10-15 on the hidden section, which is just fine. The people who designed the moulds could have done a much better job, ive found countless peices that have a beautifully moulded underside, yet the visible section is riddled with divits from ejector pins. On top of that, almost every peice has a small ridge from where the two halves of the mould came together, which is expected to some degree, but Trumpeter could have easily found a way to make higher quaility parts. All this does is add hour after hour of pre-painting work to your model which is already going to take a very long time to build.
However, if this is not an issue for you and you have the time to finish the peices nicely, you end up with a beautiful kit that is (apart from the above) highly detailed. I would suggest aftermarket shells though, as the included ones dont even line up when the halves are assembled. The only other setback from the poor moulding of the peices is that the designers overlooked a few things, mainly the underside and interiror of the carriage; there are several sections where either wiring or copper piping is present on the real K5 (E) that has been completely overlooked, but this is easily overcome. What is the biggest dissapointment of the kit apart from the poor moulding of the parts, is that the designers slacked off horribly on the underside of the carriage. There are two sets of chains, one front left, the other right rear, that were (from what ive gathered through research) intended to connect the chassis to the railcars for some reason, im assuming in the event the chassis somehow became disconected from the railcar, but this is just a guess. What has been included, however, is the hooks these chains would connect to on the railcars, just have a look. on
www.one35th.com , under the K5 (E) article, are some very useful line drawings from the original plans by Krupp, in one of these, the rear chain is visible in the intended position. Another overlooked detail is a section of rubber tubing i beleive to be for transfering hydraulic fluid from the generator car to the gun assembly in order to adjust pressure in the hydraulic cylinder itself. This tube exits the left side of the chassis from the opening in the framework as a section of piping and then the rubber tube is fitted. Here you can see the tube on the present day K5(E) Aust. C version:
Click Here The final part left out are (i have no idea what they are used for) these large triangular parts that hang down at an angle from the chassis:
Click Here Had the designers taken a look at the actual gun they were replicating, these parts would have been quite obvious.
In the end though, its a beautiful thing to watch this kit come together peice by peice, and extremely rewarding.