Eligibility depends on the wheel, brake, and aircraft make, model, and serial number. Please see the current catalog information or click "View Eligible Aircraft" and read any applicable comments to verify and/or determine eligibility.
APS BlackSteel Brake Discs
Improve braking performance
APS BlackSteel brake discs are state-of-the-art CNC machined from a one-piece forging.
When the metal is forged, it creates a directional grain flow that follows the contour of the disc. This allows for a much stronger disc that has a reduced risk of the cracking and catastrophic failures associated with inferior welded designs.
The APS proprietary heat treatment has a two-fold purpose. The heat treatment strengthens the steel by bonding the carbon, oxygen and nitrogen in the top layer of the metal. This is not a coating that can wear off, as the steel itself is transformed. The heat treatment gives the steel its black appearance and provides the surface with a high resistance to the corrosion and oxidation associated with the extreme thermal cycling experienced in aircraft braking systems. This makes it an excellent choice for agricultural aircraft that work in a harsh, chemical environment, as well as for anyone who leaves their aircraft outside most of the time.
|APS Minimum Wear Dimensions|
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|McFarlane Newsletter 2016-3: Wheel Balancers, Prop Balancer, APS Lining for Caravan and Kodiak, APS Disc for RV-10|
|McFarlane Newsletter 2016-6-22: Piper Baggage Door Locks, STC Skins, Rotax Springs, Knots 2U, APS Brake Kit Special, Oshkosh|
|APS Break-In Procedures|
|APS Catalog Information|