Below are listed the engineering notices/changes and suggestions for the Bearhawk LSA, put out by R & B Aircraft. If I have missed any, please notify me via email and I will update it. These were re-printed by permission of Bob Barrows (R & B Aircraft).
If you have any questions or comments regarding these notices, please contact:
Bob Barrows
2079 Breckinridge Road
Fincastle, VA 24090
(540) 473-3661
Important Engineering Terminology Differences ( taken from April 2003 Beartracks)
ENGINEERING CHANGE NOTICE: Design change that requires immediate
attention to affected serial numbers. This NOTICE contains the technical
information to correct the unsafe condition.
ENGINEERING CHANGE: A change to current serial number drawings
onward - non-mandatory - may or may not be published. This change is
the result of a product improvement, update or modification. Or a minor
change of the design to ease manufacturing, maximize utility, economize materials
or ease assembly.
ENGINEERING REPORT: Field or lab test data that is disseminated
to the builder in the form of a report. An Engineering Report may generate
an Engineering Change Notice or an Engineering Change or neither. The
report may or may not validate the design. A summary of the results
will always be attached with our thoughts and recommendations."
Please note that once a notice or update is released, all plans numbers from that time forward have already been changed to reflect the updates/notices. Therefore, if your plans are dated after the dates listed below, there is no need to do anything. Your plans should already reflect the changes.
Below are links to the Engineering Notices/Changes:
August 2012 Engineering Change - Ref Drawing #23 sleeve added to landing gear axel to accommodate the Matco Wheels..
December 2012 Engineering Change Notice- Ref Drawing #22 - Added tube if Skyliight is not installed
December 2012 Engineering Change Notice - Ref Drawing #17 - Change to Front Stabilizer Mount Tube thickness
January 2013 Engineering Change - Door Flanges to be made from Aluminum instead of steel.
January 2013 Engineering Change Notice - Change to a Dimension on Drawing #5 - Hole location corrected.
February 2013 Engineering Notice - A change to VNE at certain altitudes.
September 2013 Engineering Notice - Installation of Rudder Stops.
December 2013 Engineering Notice - Call bolts and nuts at the bottom of the control sticks
December 2014 Engineering Notice - Spark plug clearance on Continental engines.