SLengines Constellation Radial engine, seven cylinders, 4stroke, 90cc.
The SLengines motor is the only 90cc radial engine currently on the market. The engine is built with craftsman precision so to grant performance, reliability and power to the top of its category.
Separate lubrication on the timing system, not from direct fuel. The look resembles very closely the most famous radial engines used in the past on real airplanes.
It can put out around 9,5-10 Hp when running at maximum power. The max. rpm variates from 6700 rpm to 3400 rpm when using high pitch and large diameter propellers.
The min. rpm goes from 800 rpm to 1200 rpm. When running at the min. of 800 rpm it’s possibile to use an electronic cpu with a li-po battery so to supply a consistent current to the glow plugs and avoid that the engine shuts off in fligth. Timing system with a large diameter drum (cams) to ensure a smoother running cycle.
Acceleration from low to high end very similar to a 2 stroke engine. Materials used for the construction such as ergal, titanium, NCD steel, etc. are specific for the application.
Thermic treatments and coatings fit to last in time. Rotary cam nitrite treated so to avoid the wear factor. Pump working trough the crankcase pressure to lubricate the buckets that hold the rocking arms rods.These rods feature covering pipes that let the oil circulate and provide a constant lubrication to all the moving parts of the engine. Engine color on request , special paints are used.
Technical data:
Displacement: 12,8 cc per cylinder 89,6 cc total
Stroke: 23,2 mm
Bore: 26,5mm
R.p.m min.: 800/1000
R.p.m max.: 6500/7500
Weight: 3,840 kg - 8,47 lb for the gas engine / 3,2 kg - 7,2 lb for the glow engine including engine mount and radial silencer
Power : 8/10 hp
Propeller: 24x6/8/10-26x8-28x6/8-max 30x6/8
Rpm per propeller: 24x8/10 7500max 26x6/8/10 6400 suggested rpm 28x6/8 5700/6000 30x6/8 3200/3400 max suggested
Fuel comsumption: 1,8-2,6 liter/h
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Electronic cpu with li-po battery to provide a consistent current to the glow plugs
Kit available for conversion to gas. Kit includes electronic cpu and some mechanical parts.
Worldwide exclusive distributor
tel. 0039 348 3230107
