Tru Turn 3-1/4" Big Bird 3-Blade Spinner

Tower Stock# LXUT31  •  Manufacturer Stock# 3253B
Tru Turn 3-1/4
Notes from our tech department:
This is the 3-1/4" Tru Turn Big Bird 3-Blade Aluminum Spinner.


Precision machined from barstock aluminum with a brushed finish
Compatible with any engine from a 1.20 4-stroke glow to a 3.2cc
gasoline engine
Easy to install, bolt-on design allows perfect centering on baseplate
Spinner cone is recessed to mate into backplate
Ninety day limited warranty through manufacturer beginning at date of


3/14" (82.5mm) Aluminum Spinner Cone with Backplate
10-32 x 1-1/2" Mounting Bolt
Tru Turn Decal Sheet
Instruction and Safety Tips Header Card


Spinner Adapter Kit (See COMMENTS)
4mm hex wrench for bolt


Backplate Diameter: 3.250" (82.5mm)
Backplate Hole Diameter: 3/8" (9.5mm)
Length From Back Of Backplate To Front Of Cone: 3" (76mm)
Height Of Propeller Slot: 0.88" (22.5mm)
Length Of Propeller Slot: 0.75" (19mm)
Weight: 3.35oz (95g)
Prop Range: Up to 15-6 Graupner 3 blade


Warning: Failure to follow the instructions printed on the card may
cause the propeller to separate from the model.
The spinner cone must not touch the propeller at any point, only
authorized agencies should modify the spinner.
Spinner adapter kit to use will be determined by engine crankshaft
size. Use one of the following:
TRUQ3060: (5/16" - 24) (5/16" Bushing) (TT-516-A)
OS Max 60FP, 61 FX & SF, SuperTigre 61-90 and G2300,
Fox 60-120, Como 75-90
TRUQ3063: (5/16" - 24) (8mm Bushing) (TT-0518-A)
OS Max 61-90 (2-Stroke), HP 120 (4-Stroke)
TRUQ3066: (5/16" - 24 Jam Nut) (8mm Bushing) (TT-0522-A)
OS Max 70-120 Surpass (4-Stroke) 140RX (2-Stroke),
Abitar 120 (4-Stroke)
TRUQ4010: (8 x 1.0mm) (8mm Bushing) (TT-0810-A)
Enya R 120 (4-Stroke), OPS Super 60 & 61 5-Port,
HP 120 (4-Stroke)
TRUQ4015: (8 x 1.0mm Jam Nut Kit) (8mm Bushing) (TT-0814-A)
YS 90-120 (4-Stroke)
TRUQ4025: (8 x 1.25mm) (8mm Bushing) (TT-825-A)
All YS (2-Strokes), OPS Maxi 30, Rossi 40-61, Peco 60-80,
Webra 61-120 (All)
TRUQ3065: (3/8" - 24) (No Bushing Required) (TT-375-A)
OS Max 1.08, Maloney 1.00 & 1.25, Enya 2.40,
Technopower (All), Brison (All)
TRUQ3025: (10 x 1.25mm) (No Bushing Required) (TT-0125-A)
Super Tigre 2000 - 3000 (4500 & 6000 12mm Reaming
Required) (Not For The G2300, Use TRUQ3060)
TRUQ3027: (10 x 1.25 x 50mm) (Hex Cap Screw-No Bushing) (TT-0127-A)
Zenoah G-45 & G62
(10 x 1.25 x 55mm) (Hex Cap Screw-No Bushing) (TT-0127AL)
MacMinarelli 70 & 85
TRUQ3047: (1/4" - 28 Jam Nut) (TT-0149-A)
OS Max 26, 40, 48, 52 Surpass (4-Stroke)
TRUQ3064: (5/16" - 24) (Long Jam Nut) (8mm Bushing) (TT-0520-A)
OS Max 1.20 Flat Twin & Up
(8 x 1.25 x 40mm) (8mm Bushing) (Hex Cap Screw) (TT0835A)
Zenoah G-38

jxs 05/19/10

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