The center section showing the annoying cutout for the radiator (above left) that Rob had to have. A slight amount of dihedral was built into the wing using ply rings that join the aluminum tubes (above right) to the oversize holes in the ply ribs. A shot bag holds it down while the epoxy cures. This is the aileron bellcrank (below left) buried in the fuselage that connects the
servo to the pushrods going up to the wing. The semi-circular aileron control horns (below right) are brass with square tube soldered in to link up with corresponding sections on the torque rod ends. They were faced with plywood to give them some shape. It’s cool to watch them work and, amazingly, the system has little play.
plugs into tubes embedded in the fuselage. The cabane, interplane and landing gear struts all have carbon/ply innards with a balsa skin which in turn was glassed, ap- plied with thin CyA. Covering used for the open structures is
Sig Koverall applied with Balsarite and thin CyA, primed with nitrate dope and Poly- crylic. For flight control, I used wire pushrods for the elevator and rudder with elastic thread to make the rest of it look like a pull-pull system. If I had to do it again, I would make a true pull-pull system as a lot of it could be accessed through the cockpit and it is truer to scale. I rigged the model with Kevlar thread at-
tached to faux ship model turnbuckles which appear to be strong enough for this size model. I anchored the rigging to the model with square brass tube fittings that were cut open on one side, thus forming a “U”. These were screwed to the model’s ply plates with .080-inch sheet metal screws and were drilled crosswise to accept a brass wire to secure the rigging. This is a close to scale setup.
Painting and finishing The model’s camouflage and markings
were painted using Testor’s Model Master, Tamiya enamel and Duplicolor primer. The CL.II modeled bore a base yellow/green scheme on the fuselage with pre-printed fab- ric having a five-color lozenge for the wings.
FLYING MODELS
The underside of the fuselage was varnished natural wood and metal areas were left in a gray-green primer. Note that Halberstadt covered wings by orienting the fabric at 45 degrees from the leading edge out. Ailerons were generally covered spanwise using a single piece of cloth. Rib taping was applied to all flying surfaces and was simply strips of pre-printed fabric applied with cellulose dope. A primary goal here was to try to get re-
alistic colors for the lozenge scheme which, at times, seemed harder than splitting the atom. I have seen so many otherwise nice models spoiled by a lozenge scheme that looks almost toy like. I had an article from the January, 1985 AMA magazine detailing Germany’s five color lozenge scheme which included what turned out to be an accurate drawing of the repeating hexagonal pattern and which also had the colors referenced to Federal Standard (“FS”) 595a color chips— a copy of which I had, amazingly. I also did some research on the internet
and referenced other authoritative articles from English and US scale books and maga- zines. It seemed at times that little of this in- formation with respect to color jibed with each other and, further complicating the is- sue, was the introduction of Methuen and Munsell paint codes which were murder to cross reference to anything that I could un- derstand. After all this, I came back to the AMA article which seemed very clear and
the colors themselves just looked right after doing some test spraying. So, this is primar- ily what I used to guide me through the paint job; whether the colors would hold up in a scale contest is another issue. Since I work in Testor’s Model Master
(“MM”) enamels, I had to relate the FS col- ors in the article to those produced by MM. Complicating this is the fact that MM does not produce paint for all FS colors. So, in cer- tain cases, I had to mix combinations of MM paint to get me to the required FS color. Even more maddening was that, at least in one case, I had to mix to two separate FS col- ors and then mix those! Once I had what seemed like gallons of
the “right” colors, I cut the masks—one for each color. I at first only cut four masks (for each wing!) since I had already base coated the wings initially with what I thought was the correct tan upper and lower, but then found that I was wrong and had to go back and redo the tan. Perfectionists lead such frustrated lives. Once the basic paint job was done, it was
on to the rib taping. Conveniently, for them at least, Halberstadt used strips of lozenge cloth for its rib taping and I always felt that this practice imparted a very interesting ef- fect to the overall scheme. There was some question as to whether the ailerons were taped, but an overhead shot of a CL.IV at the Udvar museum indicated that they were—at least for that plane.
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