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Cessna Skylane SMA Diesel Conversion

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Cessna Skylane SMA Diesel Conversion

The SMA diesel 182 has a modern sporty look with its rectangular and crescent "smile" air intakes. Photos By Tom Benenson

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The MT composite 3-blade prop helps achieve a climb rate of over 1,000 feet per minute.
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With the cowl removed, there’s no question that this is not your father’s 182. The SMA SR-305-230 diesel engine rumbles at start-up but runs smoothly with a deep-throated sound in flight.
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With no magnetos or spark plugs, the SMA diesel engine promises to provide increased safety and reliability.
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The 230-horsepower SMA diesel engine comes with a recommended TBO of 2,000, but with experience, the TBO is expected to be raised to 3,000 hours.
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The SMA SR-305-230 is a horizontally opposed, four-cylinder, turbocharged, air/oil-cooled, diesel engine with a wet sump-oil system, rated at 227 bhp for both takeoff and continuous power at 2200 rpm.
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**The SMA 182’s single power lever, the large T-handle on the left, is used to control RPM, mixture and manifold pressure, greatly reducing pilot workload. The smaller, striped handle is used as a mechanical backup in case of complete failu?
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In cruise, the recommended Manifold Pressure at 5,000 feet varies from 54 inches at economy cruise to 63 inches at normal cruise.
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As the TIT and CHT guage indicates, the SR-305 engine is turbocharged. A major advantage for the SMA engine is its efficiency combined with its ability to burn jet-A.
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The Nu-Tech headrest testifies to fuel requirement and the parentage of this SMA diesel Cessna 182.
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The tip-off to what’s under the hood when the cowl’s closed is the writing on either side of forward fuselage. “Jet-A,” “SMA,” and “www.nutechassociates.com.”
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