Our mission is to provide and support economical solutions
for older aircraft, often referred to as "Classic"
aircraft. As a result of more than 35 years of customer
service in the aircraft switching unit business, we recognize
the need to support many aircraft in the last half of their
Butler National has adopted a business mission to design
and supply "Classic Aviation Products". Part
of our Classic products mission is directed to supporting
safety of flight for the Classic aircraft ("Safety Products").
The Butler National Transient Suppression
Device ("TSD") is one example of a Classic Aircraft
Safety Product. The TSD provides a solution to the Federal
Aviation Administration requirements to protect aircraft fuel
tanks from hazardous energy levels that may be introduced
through the Fuel Quantity Indicating System wiring.
For more information about the TSD select the link.