List of products by brand OS Engines

Combo OS Speed B21 Adam Drake Edition II Engine + T-2100SC
Combo nitro engine OS Speed B21 ADAM DRAKE EDITION II with T-21000SC pipe realized with the collaboration of Adam Drake.
Features:- Designed according to Adam Drake's advice and taste.-  New design cylinder liner with new porting.- New design crankshaft with double tungsten counterweight- New bore x stroke (see the attached specifications)- Carburetor reducers are 6.5mm and 8.0mm to suit both powerful drive and fuel economy drive OS SPEED 5. P3 GOLD plug is used for more consistent idling.
Engine OS FS-56II Airplane 4T Glow 40NA and Silencer 4040
Specifications:Carb Type: O.S. 40NA rotaryHP: 1.0PS, 0.99 HP @ 10,000 RPMMuffler Type: 2-piece aluminumMuffler Weight: 42 gProp Range: 12x6-8 - 13x6-7Stroke: 20.6mmCrankshaft Threads: UNF1/4-28Engine (Only) Weight: 394g w/o muffler 419gRecommended Fuel: 10%-20% four cycle blend nitromethane w/18% synthetic lubricantWidth: 44mm between mounting hole centersTotal Weight: 461 g
Engine OS SPEED B2103 TYPE R
 Technical specifications:- displacement 3.49cc- bore 16.27mm- stroke 16.80mm- rpm 4000-42000 rpm- max output 2.64hp/34000 rpm- weight 354gr- exhaust T2100SC- port 5-port
Includes: Turbo P-3 plugRequires: glow fuel, tuned pipe and manifold