| AVIASTAR |
.53 2 Stroke Glow Engine |
Modern design combined with state of the art computer-driven machinery and superior metallurgy to create the finest 2 stroke model airplane engines. |
| For instance, the connecting rods use the same aluminum alloy as found in some full size aircraft engines. Crankshafts are one piece hardened Cr steel. A specially developed "KK" bronze alloy is used for the conrod bushing which allows it to withstand high RPMs. Cylinders are made of a special heat treated Cr steel alloy to insure a hard and true cylinder that will not distort at high temperatures. Piston rings (1.2 - 2.0 in3 engines) are made of the same steel alloy as found in some racing motorcycles. The .53 in3 is true ABC construction. All engines contain high quality dual ball bearings. |
Of course, the carburetors are of a twin needle design for the best balance between power and fuel consumption. O-rings are used at all critical points to eliminate any possible air leakage. There's no lapse of power throughout the transition, making this a popular choice for aerobatic flying. |
| Sig recommends 10% Nitromethane Champion Glow Engine Fuel with castor blend. Power ratings listed were obtained with FAI fuel (0% nitro) on a hot summer day with 85% relative humidity. |
Included with the SIG Lt-40 RTF. Some other popular airplanes for this engine include SIG Sealane BIY, SIG Kadet Senior BIY/ARF, SIG Four Star 40 BIY/ARF, SIG smith Miniplane BIY, SIG Somethin' Extra BIY/ARF, SIG Rascal Forty ARF, SIG 1/5 Scale Piper J-3 Cub BIY, SIG Sun Dancer 50 ARF, SIG Mayhem 40 ARF. |
| Specifications | |
| Displacement | .53 in3 ( 8.69 cm3 ) |
| Bore | .886 in ( 22.5 mm ) |
| Stroke | .886 in ( 22.0 mm ) |
| Practical RPM | 1 900 to 18 000 |
| Weight Ex. Muffler | 14.4 oz ( 408 g ) |
| Power | 2.45 hp at 18 000 rpm |
| Shaft Size | M 7x1 |
| Muffler included | |