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

O.S. Engine IL-300 Dia-Star 4-Cylinder 4-Stroke Inline Engine
Price:
AUD$3,971.60
Brand:
O.S. Engine
Model:
OSMG1330
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
category
Write a review

Built for Scale Accuracy and Real-World Flying

The O.S. Engine IL-300 Dia-Star brings genuine vintage character to scale models while providing dependable thrust. Its visible rocker details and inline silhouette help preserve historical accuracy on cowlings and nose profiles.

Solid Mechanical Design with Period Looks

With 0.765 cu in displacement per cylinder, the IL-300 Dia-Star supplies ample torque for heavier models and scale setups. The inline arrangement also helps keep frontal area compact, reducing the need for intrusive cowling mods.

Simple Carburetion and Wide RPM Range

The single carburetor setup makes fueling and tuning straightforward, and the engine runs usefully between 1,800 and 8,000 RPM. Typical prop choices are 20x10 or 22x8 to suit different aircraft mass and flight profiles.

Specifications

  • Displacement: 0.765 cu in x 4 (12.5cc x 4)
  • Bore: 1.0 in (25.4 mm)
  • Stroke: 0.945 in (24.0 mm)
  • Practical RPM: 1,800-8,000
  • Weight: 5.07 lb (2300g)
  • Includes: Single carb
  • Recommended Props: 20x10, 22x8

Experienced pilots and restorers will find the O.S. Engine IL-300 Dia-Star a strong match for authentic scale projects where looks and functional performance go hand in hand.

What mounting considerations should I plan for?

Confirm firewall spacing and crankshaft alignment, and use a sturdy mount to handle the engine weight of roughly 5.07 lb; proper isolation helps prevent airframe stress.

Which prop gives the best cruise for scale models?

A 22x8 prop typically provides a smoother cruise and lower RPMs for longer flights, though a 20x10 will improve climb performance.

How demanding is the break-in procedure?

Follow manufacturer break-in steps carefully; initial runs and progressive tuning are important to secure longevity and consistent running.

Can I use modern props with this engine?

Yes, modern laminated or composite props in the recommended sizes work well, provided you verify balance and clearance on your model.

Is throttle response suitable for scale aerobatics?

The engine's carb setup and torque make it capable of reasonable throttle control for scale sport flying, though tuning may be required for more aggressive aerobatic demands.

Copyright © 2008-2026 rcjaz.com.au All rights reserved