Dave Brown Aluminum Spinner 2 Blade (DAV8217)

This is a Vortech 1 3/4" Aluminum Two-Blade Spinner from Dave Brown.   Feature: - Lightweight Aluminum Construction - Polished aluminum color, brushed - Includes four plastic backplate bushings, so the backplate will fit - Safe around any regular crankshaft - Designed for Two-Blade Props   Included: - One two-blade aluminum spinner (for size see SPECS) - One Aluminum Backplate - One 10-32 x 3/4" Head Mounting Bolt - Four Plastic Backplate Adapter Bushings - One instruction/information header card   Requirement: - Vortech Adapter Nut (See COMMENT) - 4mm Allen Lock (for cap screw)   Specifications: • Spinner Backplate Diameter: 2 3/4" • Weight: 2.4 ounces. •Commentary:   To Attach the Spinner to the Engine, the Modeler Must Use One of the following Adapter Nut Sets:   Note: - Use a short adapter with a spinner 2-1/2" down. - Use a long adapter with a spinner over 2-1/2". 1/4-28 DAVQ8428: for OS .25-.60, Supertigre .25-.60, Fox .19-.50, Enya .25-.53, K&B .19-.65, OPS .40-.60, Webra