How to assemble an ARF RC aircraft step by step
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
ProTek RC 381 Ultra Low Profile High Speed Brushless Servo (High Volt / Metal Case) is an RC product from ProTek RC. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
ProTek RC 381 Ultra Low Profile High Speed Brushless Servo (High Volt / Metal Case) fits customers looking for ProTek RC items in ProTek RC Catalog, ProTek RC Tools & Pit Equipment, ProTek RC Bags & Storage, with RC-MODEL support for choosing the right configuration.
ProTek RC 381 Ultra Low Profile High Speed Brushless Servo (High Volt / Metal Case) is a ProTek RC product intended for steering, throttle, crawler, aircraft or general RC control installations. This page presents the practical buying information a customer needs: fit, SKU, image, category and technical specifications.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
One of the most important setup guides: find the CG, install the flight battery, balance the aircraft and avoid nose-heavy or tail-heavy surprises.
A repeatable inspection routine for control direction, radio range, failsafe, battery, fasteners, propeller, CG and field readiness.
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | ProTek RC |
| Brand | ProTek RC |
| Product Code | PTK-381 |
| AMain Product ID | 1551182 |
| Product Family | ProTek RC servo range |
| Application | 1:10 Scale; steering, throttle, crawler, aircraft or general RC control installations |
| Dimensions | 39.5x20x25mm |
| Weight | 54g |
| Motor Type | Brushless Digital |
| Output Shaft | 25T |
| Operating Voltage | 6.0V - 8.4V |
| Operating Temperature | 14° to 140° F (-10 to +60° C) |
| Operating Speed @ 7.4V | 0.06/60° sec |
| Dynamic Torque @ 7.4V | 307oz-in (22.1 kg-cm) |
| Gears | Steel w/ Lifetime Gear Warranty |
| Pulse/Frequency | 1520s / 333hz |
| Operating Speed @ 8.4V | 0.05/60° sec |
| Length (Bottom to Mount) | 14mm |
| Dynamic Torque @ 8.4V | 381oz-in (27.4 kg-cm) |
Tags: ProTek RC, PTK-381, ProTek RC servo range, ProTek RC Catalog, ProTek RC Servos, ProTek RC Tools & Pit Equipment, ProTek RC Bags & Storage, RC-MODEL
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