AeroNaut Z-Spinner 40mm (725175)
$33.49
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AeroNaut Z-Spinner 40mm (725175)
$33.49
Low Drag
Tighter Propeller Blade Fold
Aluminum Hub
Precision Milled Center Section
Cooling Vents
Integrated Nose Air Vents
Streamlined Glider PerformanceMaximum Efficiency for E-Sailplanes
The Aeronaut Z-Spinner 40mm combines advanced cool-nose ventilation openings with precision cranked aluminum middle pieces designed specifically for electric RC gliders. By angling the propeller mount, folding propeller blades rest extremely close to the motor fuselage, significantly reducing aerodynamic drag during thermal gliding. This high-efficiency RC plane spinner is the ultimate upgrade for sailplane pilots seeking maximum flight times and lower air resistance.
Advanced Z-Spinner EngineeringPrecision Design for Minimum Drag
Engineered for high-performance electric sailplane fuselages, the Aeronaut Z-Spinner 40mm delivers an ideal balance of thermal cooling and low aerodynamic drag. The precision-milled aluminum center piece features cranked mounting arms that pull the folding propeller blades inward tight against the glider nose. Additionally, the white plastic cap is easily paintable to match your custom color scheme. Featuring a 34mm center distance (d=34mm), the Aeronaut Z-Spinner 40mm reduces standard 42mm-referenced folding propeller diameters by 16mm, creating a tighter, cleaner profile in flight without sacrificing motor cooling capability.
Technical SpecificationsDetailed Measurements and Compatibility
Compatible Vehicles
RC Electric Sailplanes and Gliders
Part Type
Folding Propeller Spinner
Cap Diameter
40 mm
Center Distance (d)
34 mm
Propeller Diameter Offset
-16 mm / -0.63 in
Cap Material
White Paintable Plastic
Center Section Material
Milled Aluminum
Placement/Position
Fuselage Nose / Motor Shaft
Dimensions
40mm Diameter x 34mm Center Section
Component Compatibility
Interchangeable with 32mm-42mm caps
Key Features and BenefitsEngineered for Superior Glider Flight
Aerodynamic FoldingCranked Z aluminum arms pull blades closer to the fuselage
Cooling EfficiencyOpen nose design provides direct cooling air to the electric motor
Precision HubMilled aluminum center piece with integrated clamping cone holder
Customizable FinishWhite plastic spinner cap can be easily painted to match
Modular CompatibilityCenter section interchangeable across 32mm to 42mm Aeronaut caps
Complete HardwareIncludes mounting screws, aluminum hub, cap, and prop rubber
Frequently Asked QuestionsEverything you need to know
What is the main benefit of the Aeronaut Z-Spinner 40mm for RC gliders?
The Aeronaut Z-Spinner 40mm features angled aluminum center arms that allow folding propeller blades to lay flatter against the fuselage, drastically reducing air resistance and drag while gliding.
How does the Aeronaut Z-Spinner 40mm affect folding propeller sizing?
Because the Aeronaut Z-Spinner 40mm has a center distance of 34mm (compared to the standard 42mm reference), it decreases the total effective diameter of your folding propeller blades by 16mm (approx. 0.63 inches).
Is the plastic cap on the Aeronaut Z-Spinner 40mm paintable?
Yes, the white plastic cap on the Aeronaut Z-Spinner 40mm is made from smooth plastic that can be easily prepped and painted to match your model's color scheme.
Are components of the Aeronaut Z-Spinner 40mm interchangeable with other sizes?
Yes, the center section of the Aeronaut Z-Spinner 40mm is interchangeable with Aeronaut spinner caps ranging from 32mm to 42mm for custom setup tuning.
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