Big Sin packages collect Eduard's resin parts for one specific aircraft kit into a single bundle. Where the related Big Ed range is built on photo-etched metal, Big Sin is built on castings: engines, wheels, exhausts, complete cockpit assemblies and underwing stores. It is the choice for builders who want to open a model up and show the machinery under the panels.
Below we go through selecting a package by kit, by scale and by how much experience you have with resin.
Big Sin sits on top of Eduard's resin output: the firm picks several of its castings for one particular kit and supplies them together as one item. Resin, a polyurethane casting material, reproduces detail that injection moulding cannot reach, from cylinder cooling fins to tyre tread and sidewall lettering. Some aircraft are offered in graded versions, for instance Essential and Advanced packages for the P-40 K, so you decide how far to take the build yourself. The range also includes weapons sets for the MiG-21 and alternative exhaust options for the Spitfire Mk.Vb.
Resin parts are shaped around one set of mouldings, so take the designation in the title seriously. Fitting a package to another firm's kit is not a matter of light sanding; it means reworking the surrounding plastic.
Castings are sawn from their pour blocks, bonded with cyanoacrylate and occasionally need a little filler. None of that is beyond a competent builder, but a first encounter with resin is better had on a small standalone casting than on a fully exposed radial engine.
Resin assemblies are most rewarding on 1:48 aircraft kits and larger, where every detail registers. Big Sin also covers the widespread 1:72 aircraft kits, where resin wheels and exhausts improve a model in a single evening.
If the cockpit and the airframe surface are what you really want to improve, the etched alternative is Big Ed, and the full picture is in the overview of aircraft upgrade sets.
