DAVE BROWN VORTECH 3-1/2" (Parabolic) P-51 2 Blade Aluminum Spinner

Vortech Spinners (Parabolic style)

•     Vortech spinners are spun from Aluminum sheet - not molded/cast from brittle material, or machined out of expensive bar stock!
•     Precision CNC machined to exacting tolerances.
•     Designed to be strong, yet light weight.
•     Spinner cone locks into backplate to stop spinner cone expansion.
•     Backplate is knurled for positive grip between engine’s drive washer and your propeller.
•     All Vortech Spinners start life the same way - as a flat piece of aluminum sheet which has a CNC machined tip pressed into the center.
•     This disk is then, spin-formed to shape and turned to high precision.
•     After the cone is machined, it is polished to a beautiful reflective finish.
•     Vortech spinners have cutouts with clearance for popular sizes of props.
•     Parabolic shape is perfect for P-51s, Extras,& many other planes.

Using a unique CNC manufacturing process insures that every Vortech spinner is precision spun, machined, light-weight, and polished to a brilliant shine.

What's Included

•     One Two-Blade Aluminum Spinner (For Sizes See SPECS)
•     One Aluminum Backplate
•     One 10-32 x 1" Cap Head Mounting Bolt
•     Four Plastic Backplate Adapter Bushings
•     One Instruction/Information Header Card

Requirements

•     Vortech Adapter Nut
•     4mm or 5/32" Allen Wrench (For The Cap Screw)
•     Although it will depend on the thickness of your prop and the spinner size, as a general rule, always use the longest adapter nut possible.
•     Use SHORT adapters with spinners 2 1/2” and under.
•     Use LONG adapters with 2 3/4” to 3” spinners.
•     Use X-LONG adapters with 3 1/4” to 4" spinners.
•     Use XX-LONG adapters with spinners 4 1/2" and up.
•     Use a LOCK NUT with an adapter nut on 4-stroke engines.