I've improved the forward landing gear 3D model on the UD-4L "Cheyenne" Dropship. I've discovered the forward landing gear is actually the main landing gear of a Avro Vulcan Bomber. The far landing gear is the old model, the closer one is the newer version.
How much was the film Aliens done using scrap vehicles, spare aircraft parts, abandoned industrial locations, cannibalised weapons? :)