a special thanks to John Pierce for this information.
JACKSONVILLE, FLORIDA, DECEMBER 17, 2001 --
Industries announced today that it has received FAA-PMA status for its
LASAR® (Limited Authority Spark Advance Regulator) Digital Engine
Control System for Lycoming O-540 and IO-540 series engines with 25° base
ignition timing. This new approval makes the LASAR system available for
most aircraft that use Lycoming engines. To purchase LASAR, visit
Unison's Web site (www.unisonindustries.com) for a list of authorized Unison
distributors, or e-mail Unison at buyLASAR@unisonindustries.com.
Examples of certified aircraft outfitted with Lycoming 540 engines
and perfectly suited for the latest generation LASAR system include the
SIAI Marchetti, the Piper Cherokee, and the Piper Comanche. Homebuilt
and experimental aircraft such as the Glasair and the Harmon Rocket are
also ideal LASAR candidates.
Installation of the LASAR system takes approximately four hours.
LASAR can be installed in the field or during an engine overhaul by an
A&P or a qualified engine shop. Kitbuilders and experimental aircraft
owners who choose to install LASAR themselves can use Unison's detailed
Service/Installation Instructions and special magneto timing
LASAR was first made available for installation on most Lycoming
-320 series engines and associated airframes in 1996. Certification of
the LASAR system for installation on Lycoming -360 series engines
followed in 1997. In 2000, Unison's LASAR system received FAA-PMA status for
installation on Lycoming IO-540 series engines with 20° base ignition
LASAR is the first and only FAA-PMA Approved microprocessor-based
electronic engine control system for GA piston engine aircraft. LASAR
improves engine starting, rate of climb, and engine idle performance.
LASAR also reduces fuel consumption in cruise conditions by up to 12
percent. Unlike traditional full authority digital engine controls
(FADECs), LASAR provides redundant magneto-based ignition as a backup in the
event of an aircraft electrical power interruption.
LASAR users clearly benefit from increased fuel efficiency and improved
engine performance. Hans Georg Schmid relied on LASAR in his Long-EZ
that completed a record-setting 24,154 nautical mile flight around the
world. "LASAR enabled me to reduce my total fuel consumption and
complete several 15-hour flight legs without refueling," said Schmid. "I
wouldn't leave home without the LASAR system."
is a world leader in the design and manufacture of electrical
sensors, and systems for aircraft, industrial, marine and space
in Jacksonville, Florida, Unison operates manufacturing facilities
centers worldwide. LASAR® is a registered trademark of Unison
Industries.Additional information about Unison is available at