B&C Alternator Spline Driven For M14P 30 Amp BC412-H with LR3D-14 14V - for Homebuilt

The B&C Specialty Products BC412-H (SK35) is a spline-driven, externally regulated alternator for M14P engine installations in experimental aircraft. This 14 V configuration is identified by manufacturer part number BC412-H-LR3D-14 and includes the LR3D-14 alternator controller designation.

Designed for durable service, the BC412-H has a rated output of 35 A at cruise RPM. Its construction features new-material components, heavy-duty sealed ball bearings, dual internal cooling fans, a dynamically balanced rotor, and a shear-section drive coupling. B&C also specifies a wound-field design and CNC-machined billet-aluminium mounting flange.

• Manufacturer part number: BC412-H-LR3D-14
• Alternator model: BC412-H (SK35)
• Electrical system: 14 V, with LR3D-14 controller configuration
• Rated output: 35 A at cruise RPM
• Drive type: spline-driven
• Engine application: M14P
• Approximate alternator dimensions: 152 mm long × 106 mm diameter
• Manufacturer designation: experimental aircraft only

The alternator requires external regulation; B&C advises use with a compatible B&C regulator/controller. For installation reference, consult the manufacturer’s BC412-H product page and available outline drawing.