Dave Brown Vortech 2-1/2" Two-Blade Spinner

Tower Stock# LXB947  •  Manufacturer Stock# S225
Dave Brown Vortech 2-1/2
Notes from our tech department:
This is a Vortech 2-1/2" Aluminum Two-Blade Spinner from Dave Brown.


Light-Weight Aluminum Construction
Polished, Brushed Aluminum Color
Includes Four Plastic Backplate Bushings, So The Backplate Will Fit
Securely Around Any Ordinary Crankshaft
Designed for Two-Bladed Props


One Two-Blade Aluminum Spinner (For Sizes See SPECS)
One Aluminum Backplate
One 10-32 x 3/4" Cap Head Mounting Bolt
Four Plastic Backplate Adapter Bushings
One Instruction/Information Header Card


Vortech Adapter Nut (See COMMENTS)
4mm Allen Wrench (For The Cap Screw)


Spinner Backplate Diameter: 2-1/2" (64mm)
Spinner Backplate Mounting Ring Thickness: 3/16" (4mm)
Spinner Backplate Hole Diameter: 3/8" (9.5mm)
Length From Back Of Backplate To Front Of Cone: 2-7/16" (61mm)
Weight: 2.0 oz.


To Attach the Spinner to the Engine, the Modeler Must Use One of the
Following Adapter Nut Sets.
Note: Use A Short Adapter With Spinners 2-1/2" And Under.
Use A Long Adapter With Spinners Above 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 .28-.80
5/16-24 DAVQ8524: for OS .61-.90, Supertigre .61-.90, Fox .60-1.2
7x1.0mm DAVQ8710: for Enya .35-.60, .60-1.2 Four Strokes
(Non R Engines)
8x1.0mm DAVQ8810: for YS .90-1.2 4-Stroke, Enya 1.2R 4-Stroke,
OPS Super .60 and .61 5-Port
8x1.25mm DAVQ8812: for All YS 2-Stroke, OPS Maxi .30, Webra .61-1.2
The Stock Numbers Above Are For the Short Adapters.
It Is Best To Use The Longest Adapter Nut That Will Fit.
JAL 4/27/99

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