O.S. Engine OSMG0352 BGX-1 3500 RN Lightweight 35cc Powerplant  [OSMG0352]

O.S. Engine BGX-1 3500 RN
Price:
AUD$649.77
Brand:
O.S. Engine
Model:
OSMG0352
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Compact 35 cc drive from the O.S. Engine OSMG0352 BGX-1 3500 RN

For large-scale RC pilots who need a compact but powerful engine, the O.S. Engine OSMG0352 BGX-1 3500 RN delivers balanced performance. The focus on weight savings and reduced vibration helps with handling and airframe longevity.

Engine internals focused on smooth output

Ball-bearing supports and careful machining help the unit run with less friction and better reliability. Rated output reaches 4.1 hp at 10,000 rpm, giving ample power for demanding flight profiles.

Mounting and vibration considerations

The design includes a radial mount to match SuperTigre S-3000K mounting holes, simplifying installation. Its reduced vibration characteristics protect servos and airframe fittings during aggressive flying.

Flexible propeller setup for different missions

The engine accepts a range of prop sizes from 18x8 to 20x10 so you can prioritise climb, top speed or endurance depending on the aircraft and load.

Specifications

  • Displacement: 2.13 cu in (35 cc)
  • Bore: 1.47 in (37.3 mm)
  • Stroke: 1.26 in (32 mm)
  • Practical RPM: 1,500-10,000
  • Output: 4.1 hp @ 10,000 rpm
  • Weight: 47.3 oz (w/o mount or muffler) (1,340 g)
  • Includes: Muffler, radial mount, safety prop nut assembly
  • Requires: Glow plug, fuel, propeller
  • Recommended Props: 18x8, 18x9, 18x10, 18x11, 18x12, 20x8, 20x9, 20x10

A solid choice for serious modelers, the BGX-1 3500 RN blends weight-conscious construction with strong output and prop flexibility, making it adaptable to many large-scale airframes.

The supplied radial mount fits common SuperTigre patterns; check your firewall layout and use appropriate spacers or backplates if required for clearance.
Inspect bearing condition after the initial break-in and then at regular intervals based on flight hours; replace if you notice roughness or increased play.
Start with a mid-range prop such as an 18x10 to get a balance of thrust and responsiveness, then adjust pitch for climb or cruise as needed.
Expect to fine-tune needle settings and prop selection after mounting and initial runs to achieve stable idle and full-throttle mixture for your specific airframe.

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