Engine Pratt & Whitney R-985 Wasp Junior Detailing set (Resin) Scale 1:72 Metallic Details MDR7240 - For Model Helicopter Kits

Metallic Details MDR7240 is a resin engine set that builds one Pratt & Whitney R-985 Wasp Junior for 1/72 model projects. It targets the engine face and cylinder detail that becomes visible on open-cowling builds or when the front end is left unobstructed.

On small-scale radial engines, the “depth” and separation between cylinders can be hard to achieve with simplified kit parts. This set is intended to help you define that area more clearly without changing the overall kit structure.

The R-985 Wasp Junior was used across a range of airframes, and the manufacturer lists multiple applications (project-dependent). Examples include Airspeed Oxford, Beechcraft Model 18, de Havilland Canada DHC-2 Beaver, Grumman G-21 Goose, Sikorsky H-5, and Vought OS2U Kingfisher.

For modelers: dry-fit the engine against your kit’s firewall/cowling and check the final depth before glue. If you plan to add ignition wiring, drill shallow guide holes first, then paint the engine as a subassembly and wire after the base coat. Keep the mounting face flat and square so the engine sits centered when viewed from the front.

Product specifications

• Subject: Pratt & Whitney R-985 Wasp Junior engine
• Variant / Family: R-985 Wasp Junior (application is kit-dependent)
• Scale: 1/72 (also written as 1:72)
• Product type: Resin Set
• Type of equipment: Aircraft / Helicopter (application-dependent)
• Recommended kit: for Any / Universal 1/72 kits (where applicable)
• Manufacturer: Metallic Details
• Country of manufacture: Ukraine
• Material: Resin
• SKU: MDR7240

This item is part of Metallic Details and belongs to Aftermarket and Engines. For matching projects, browse 1/72 aircraft model kits and 1/72 helicopter model kits.

FAQ

Will this engine fit any 1/72 kit?

It is listed as Universal, but fit depends on how your kit represents the engine and cowling. Dry-fit to confirm diameter and depth, and adjust the mounting face if needed.

How do I set the correct engine depth inside the cowling?

Test-fit the cowling and check how much of the cylinder row should be visible from the front. Use a simple spacer (plastic strip or card) behind the engine to set a repeatable depth before final bonding.

What glue is suitable for resin engine parts?

Use CA (super glue) for quick bonding or epoxy if you want more working time. Keep mating surfaces clean and lightly keyed for stronger adhesion.