From Atlantis comes the Allison 501-D13 Prop Jet Aircraft Engine 1:10 Scale Plastic Model Kit! Made in accurate detail from actual Allison blueprints, this model comes molded in 4 colors; black, silver, blue, and orange. With 2 color 8-page instructions, educational STEM booklet, updated decals, and display stand. All major moving parts of the engine are represented in this 16-inch long replica. Skill level 3.