O.S. Engine OSMG1330 IL-300 Dia-Star Scale Inline 4-Cylinder Engine [OSMG1330]

Heritage and Performance of the IL-300 Dia-Star

RC builders who value historical detail and reliable running will appreciate the O.S. Engine IL-300 Dia-Star. This inline 4-cylinder unit pairs exposed rocker styling with practical power delivery, making it well suited to large-scale scale models that need both visual accuracy and dependable thrust.

Classic Styling with Robust Engineering

The IL-300 Dia-Star delivers more than looks; its 0.765 cu in per cylinder displacement provides substantive thrust for heavy or large airframes. The inline layout keeps the frontal area narrow, helping modelers preserve original cowling lines without extensive cutting or reshaping.

Easy Setup and Usable Powerband

Set up with a single carburetor, the IL-300 Dia-Star simplifies tuning and maintenance while offering a practical RPM spread from 1,800 to 8,000. Recommended propellers include 20x10 and 22x8 to balance climb and cruise performance on typical large-scale models.

The O.S. Engine IL-300 Dia-Star suits experienced hobbyists and collectors aiming to keep period-correct lines while fitting an engine that performs. Its combination of detailed construction and dependable output makes it a natural pick for upgrading large-scale aircraft.