H-KING Night Walrus - User Manual

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H•KING

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NIGHT WALRUS

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Summary

Introduction to the Night Walrus

Assembly Guide

Assembly Instructions

Detailed steps for putting the model together, including control horns, pushrods, and tail surfaces.

Setup Procedures

Battery Placement and CG Adjustment

Adjusting battery position to achieve the correct center of gravity for optimal flight.

Receiver and Servo Connection

Connecting receiver, servos, and ESC, powering up, and centering control surfaces.

Control Surface Direction Check

Verifying control surfaces move in the correct directions with stick inputs.

The H-King Night Walrus is a remote-controlled aircraft designed for both day and night flying, building upon the legacy of the original Hobbyking Walrus. It is marketed as a "perfect marriage of a solid model design with dazzling LED system," offering an enhanced flying experience that extends beyond daylight hours.

Function Description:

The Night Walrus is a radio-controlled model aircraft primarily designed for recreational flying. Its core function is to provide an enjoyable and accessible flying experience for hobbyists. The key differentiator of the Night Walrus is its pre-installed LED system, which allows for vibrant and exciting night flights, a feature that was absent in its predecessor. The model is designed to be easy to assemble and fly, making it suitable for a wide range of pilots, from club fliers to those who enjoy park flying.

Important Technical Specifications:

While specific dimensions and material compositions are not explicitly detailed in the provided text, several technical aspects are highlighted:

LED System: The aircraft features a pre-installed LED system that runs throughout the model. This system is powered by connecting its lead to an additional connection from the Electronic Speed Controller (ESC), providing a full 12-volt supply from the LiPo battery/ESC. This ensures the brightest possible illumination for night flying. The LED system can be unplugged for day flights if desired.
Power System: The motor and ESC have been updated and upgraded compared to the original Walrus. Additional cooling has been integrated into the design to support these enhanced components.
Battery Recommendation: The recommended battery is a 2200mAh 3S LiPo. With this battery, the aircraft is expected to achieve flight times in excess of 7 minutes.
Center of Gravity (CG): The recommended CG point is 71mm from the leading edge when using the 2200mAh 3S LiPo. Pilots are advised to adjust the battery position to achieve the correct CG based on the specific weight of their battery.
Control Surfaces and Throws:
- Aileron: Low/High rates are 13/22mm.
- Elevator: Low/High rates are 13/18mm.
- Rudder: Low/High rates are 14/23mm.
- Flaps: The model supports a 3-stage flap system with deflections of Mid 30 degrees and Full 70 degrees.
Construction: The airframe has been strengthened, and components have been upgraded. The fuselage now includes a reinforcing plastic belly pan, which enhances fuselage strength and provides extra protection, particularly during night landings.
Assembly Hardware: The manual specifies the use of PB1.7x10mm screws for control horn installation and PM3.0x50mm bolts for securing the wings.

Usage Features:

Ease of Assembly: The Night Walrus is designed for straightforward assembly. The manual provides a step-by-step guide, including instructions for installing control horns, pushrods, tail surfaces, and wings. It emphasizes dry-fitting components first and checking alignment.
Flight Performance: The aircraft is described as flying "amazingly well, just like the original," indicating stable and predictable flight characteristics. The strengthened airframe and upgraded power system contribute to its robust performance.
Day and Night Flying: The primary usage feature is its dual capability for both day and night flights, thanks to the integrated LED system. This extends the flying window significantly.
Vibrant Scheme: Even without the LEDs, the new 'Night Walrus' scheme is described as vibrant, suggesting good visibility during daylight hours.
Control Setup: The manual guides users through setting up control surface throws and ensuring correct servo centering and movement direction. It also provides specific measurements for low and high rates for ailerons, elevator, and rudder, as well as flap deflections.
CG Adjustment: Users are instructed to adjust the battery position to achieve the correct CG, which is crucial for stable flight. Velcro is supplied to secure the LiPo battery in place.
Safety Precautions: The manual includes a comprehensive "MODEL FLYING PRECAUTIONS" section, covering critical safety aspects such as:
- Flight Area Selection: Emphasizing open spaces, away from trees, buildings, crowded areas, roads, power lines, and full-size air traffic.
- Weather Conditions: Advising against flying in poor weather (high winds, low visibility, rain, storms).
- Handling: Warning against attempting to catch the model in flight due to potential harm and damage.
- Age Recommendation: Recommended for children no younger than 14 years old, with supervision by a capable adult always required.
- Battery Management: Stressing the importance of unplugging the battery when not in use, never leaving it installed, and following proper charging guidelines.
- Propeller Safety: Reminding users to keep clear of the propeller when the flight battery is connected.
- Power-Up Sequence: Instructing users to turn on the transmitter first, then plug in the flight battery, and reverse the sequence after flying.
- Propeller Removal: Advising removal of the propeller during setup for safety reasons.
Pre-Flight Checks: A detailed "PRE FLIGHT CHECK" list is provided, including:
- Range checking the model.
- Checking all screws, bolts, and mounting points.
- Ensuring fully charged batteries for both radio and model.
- Verifying free and correct movement of all control surfaces.
- Inspecting for damage and unusual sounds from electronics.
- Confirming correct propeller rotation.
- Double-checking CG position.
- Seeking assistance from an experienced pilot for inexperienced users.

Maintenance Features:

The manual implicitly suggests several maintenance practices through its instructions and warnings:

Regular Inspections: Users are advised to inspect the model and propeller for any damage that may have occurred during transit or flight. This includes listening for unusual sounds from the electronics.
Component Security: The importance of checking that all screw/bolts and mounting points, including control horns and clevises, are firmly secured is highlighted.
Control Surface Health: "Flexing" the control surfaces back and forth a few times before connecting pushrods is recommended to ensure they move freely and do not strain the servos, implying a check for smooth operation.
Spare Parts Availability: The manual includes a "SPARE PARTS" section, listing various components with their part numbers. This indicates that replacement parts are available for common wear-and-tear or crash-damaged components, facilitating repair and longevity of the model. Available spare parts include:
- Fuselage (Part No. 9306000230-0)
- Main Wing set (Part No. 9306000229-0)
- Horizontal tail (Part No. 9306000231-0)
- Vertical tail (Part No. 9306000232-0)
- Canopy (Part No. 9306000228-0)
- Spinner/prop (Part No. 306000032)
- Accessories set (Part No. 0300000233-0)
Battery Care: Following battery manufacturer's safety guidelines for charging is explicitly stated, which is a key aspect of battery maintenance and longevity.
Cleaning: While not explicitly mentioned, the nature of RC aircraft implies regular cleaning to remove dirt, grass, or debris that might affect performance or component lifespan.

In summary, the H-King Night Walrus is an upgraded, user-friendly RC aircraft that excels in both day and night flying due to its integrated LED system and robust design. It emphasizes ease of assembly, stable flight characteristics, and comprehensive safety guidelines, supported by the availability of spare parts for ongoing maintenance.