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NEW! Vortech is pleased to now offer one of the most sophisticated, high-performance 2-place gyroplanes in the world! Please write or call for complete details and pricing. |
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Our line of
rotorblades and gyro parts will be expanding. Please re-visit this page for future updates |
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ROTOR SYSTEMS FOR YOUR GYROPLANE
Please see
more rotorblades
for helicopters & gyroplanes at
Vortech International, Inc. |
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GYROPLANE
PARTS & OPTIONS
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TO ORDER . . . |
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Go directly to Order Form |
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HIRTH ENGINE SYSTEMS Hirth engines have become recognized as the finest available for ultralight and experimental aircraft plus a wide variety of other applications. Although the initial cost of a Hirth engine may make it appear more expensive than competing engines, the extremely high TBO of 1,000 hours, the full year warranty, the superior reliability and the lower operating RPM actually make Hirth engines a far greater value than almost any of its competitors. A superior torque curve at substantially lower RPMs is why the Hirths outperform other brands by a wide margin. Unlike most engines that were designed for land use, then adapted for aircraft, Hirth engines were specifically designed for aircraft. Combining Nikasil cylinders and Hyper-Eutectic aluminum pistons (standard features), the Hirth engines are highly seizure resistant. Chrom-moly steel crankshafts give long life and virtually eliminate failures. Most engines on the market have steel sleeve cylinders. Although less expensive than Nikasil, steel sleeves cannot dissipate heat as efficiently as aluminum and expand at a slower rate. As the heat in a steel sleeve cylinder engine increases the piston expands faster than the cylinder wall, steadily decreasing piston clearance. To compensate, engines using steel sleeve cylinders must run at lower temperatures. Hirth's cylinders are aluminum alloy and have no sleeves. The cylinder walls have been treated with the patented Nikasil process. Nikasil coated cylinders are more durable than steel sleeves. Because the cylinders are an aluminum alloy, their expansion properties as well as their excellent thermal conductivity are virtually unchanged. This design allows heat to be dissipated quickly and efficiently. The piston is also made from an aluminum alloy, but one that expands slightly less than the Nikasil cylinder. This combination of cylinder treatment and matched cylinder and piston materials creates an extremely seize-resistant environment. This is also why Hirth engines can handle cylinder head temperatures of over 600 degrees F. without failure. Although the Nikasil process is expensive, the increase in the engine's lifespan, performance and reliability more than offset the cost.
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Prices and designs subject to change without notice |
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For
more information, please phone: |
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