What Does “BLC” Signify in Aviation and Component Catalogs?

What Components Are Commonly Used in Boundary Layer Control Systems?

Boundary Layer Control (BLC) refers to aerodynamic methods that are designed to manage the thin layer of airflow that develops along an aircraft’s wing or control surfaces during flight. To influence this airflow behavior and delay flow separation under certain operating conditions, aircraft designs incorporate various BLC components, including:

Can “BLC” Refer to Electrical Components Like Battery Line Contactors?

Aircraft electrical systems rely on switching devices to control how power is routed between batteries, generators, and distribution buses under different operating conditions. One such device is the battery line contactor, an electromechanical switch that connects or isolates the aircraft battery from its associated electrical bus when commanded by cockpit controls or automatic system logic. In most aircraft documentation, this component is identified by its full name or by a more explicit abbreviation, such as “BATLC” in some Airbus references. As a result, the abbreviation “BLC” is not typically used as the standard designation for battery line contactors.

Can “BLC Series” Refer to Pressure Sensors or Similar Products?

In some cases, the designation “BLC Series” refers to a pressure sensor product line used for sensing or instrumentation applications, in lieu of those employed in aerodynamic systems. One example is the BLC Series Basic Low Pressure Compact sensor produced by Amphenol All Sensors, which includes part numbers such as BLC-L01D-U2 and BLC-L05D-U2. This example shows that “BLC” can appear as part of a catalog series name for pressure sensors, rather than as a description of a specific system-level function.

What Should Buyers Do When Encountering an Unclear “BLC” Listing?

When a customer encounters a product listing online that includes unclear terms such as “series BLC” or “serie BLC,” additional information may be needed to properly identify the item. Buyers who would like clarification regarding such terminology can contact our team by phone or email, where our representatives are happy to answer questions about specifications, compatibility, or availability. Customers may also use the convenient RFQ forms provided across our website to request a quote on any BLC item listed in our database, with a customized response typically offered within 15 minutes of our team receiving and reviewing the request.

Browse Our Expansive Selection of BLC Products Today

Belonging to the ASAP Semiconductor family of procurement platforms, Aviation Sourcing Solutions is a one-stop shop for customers seeking new, used, obsolete, and hard-to-find BLC parts. With our purchasing power, market expertise, and strong supplier relationships, we are in a position to provide highly competitive pricing and rapid lead times for your benefit. Knowing how we intend to go above and beyond to bring you quality options with each order, do not hesitate to start exploring our database at your earliest convenience for all the items you need to carry out operations.