Discontinued
Brand Logo
3.7 out of 5 Customer Rating

O.S. Speed B21 Engine Adam Drake Edition

Item No. OSMG2066
Discontinued
Brand Logo
3.7 out of 5 Customer Rating

O.S. Speed B21 Engine Adam Drake Edition

Item No. OSMG2066
This item is no longer available. Updated or related products shown below:
O.S. Speed B21 Adam Drake II Engine
O.S. Speed B21 Adam Drake II Engine
OSMG2084
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Product Details

Product Specifications

Specs

Bore 0.65 in (16.4 mm)
Carb Type 21J3(B) slide valve
Crankshaft Threads UNF1/4-28
Crankshaft Type Threaded
Cylinders Single
Displacement 0.213 cu in (3.49 cc)
Power Type Glow
HP 2.65 PS, 2.61 HP @ 34,000 rpm
Plug Type Speed P3 Gold Glow Plug
Product Height 3.2 in (81.5 mm)
Product Length 3.5 in (90 mm) from backplate to end of crankshaft
Product Width 1.77 in (45 mm) at mounting tabs
Recommended Fuel 10-30% nitro content, 20% for break-in
RPM Range 4,000 - 42,000 rpm
Stroke 0.65 in (16.55 mm)
Total Weight 12.45 oz (353 g)