CYmodel CESSNA 310 - User Manual

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Summary

Required For Operation

Radio Transmitter and Receiver

Minimum 5-channel radio transmitter, receiver, and AA batteries required.

Servos

Eight servos are required for the aircraft's control surfaces.

Engine and Muffler

Details engine types (4-stroke, 26cc gas) and required mufflers.

Glue

Epoxy glue and instant glue are specified for assembly.

Fuel and Ignition

Specifies glow engine fuel, fuel pump, and ignition components.

Other Equipment

Lists additional equipment for operation and performance enhancement.

Propeller

Instructs to purchase a propeller matching the engine size.

Before You Begin

Manual Review

Read through the entire manual before starting assembly.

Parts Check

Verify all parts are present and undamaged before proceeding.

Understanding Symbols

Familiarize yourself with symbols used throughout the instruction manual.

Horizontal and Vertical Tail Installation

Horizontal and Vertical Tail Attachment

Details on attaching horizontal and vertical tail components, including servo linkages.

Center of Gravity (CG) Adjustment

This document is an instruction manual for the CYmodel Cessna 310, an Almost-Ready-To-Fly (ARF) radio-controlled model airplane. It provides detailed assembly instructions, safety precautions, and technical specifications for the model.

Function Description

The CYmodel Cessna 310 is a large-scale, twin-engine radio-controlled model aircraft designed for hobbyists. As an "Almost-Ready-To-Fly" kit, it requires assembly of various components such as the wingtips, ailerons, flaps, engine mount, fuel tank, main wing, landing gear, horizontal and vertical tails, elevator, rudder, canopy, and cowl. The model is controlled via a minimum 5-channel radio system with 8 servos, allowing for precise manipulation of flight surfaces. It is powered by a pair of 4-cycle engines or 26cc gas engines, providing realistic twin-engine performance. The manual emphasizes the importance of proper assembly and adjustment for safe and optimal flight performance.

Important Technical Specifications

Wing Span: 3200 mm (126 inches)
Wing Area: 128.4 dm² (1990 sq. inches)
Total Length: 2165 mm (85.2 inches)
Radio System: Requires a minimum 5-channel radio with 8 servos.
Engine: Designed for two 4-cycle, 1.40 cu.in engines or two 26cc gas engines.
Propeller: Requires a propeller matching the chosen engine, with recommended sizes ranging from 16x10 to 18x10.
Center of Gravity (CG): 140-145 mm from the leading edge.
Control Surface Adjustments:
- Aileron: Side view adjustments of 63mm (up) and 60mm (down) for the inner section, and 94mm (up) and 94mm (down) for the outer section (Falp).
- Elevator: Side view adjustments of 82mm (up) and 82mm (down).
- Rudder: Side view adjustments of 97mm (left) and 97mm (right).

Usage Features

The CYmodel Cessna 310 is designed for experienced model aircraft enthusiasts due to its size, complexity, and the need for precise assembly and adjustment.

Assembly: The manual provides a step-by-step guide for assembling the ARF kit. This includes installing servos for ailerons, flaps, elevator, and rudder, mounting the twin engines, assembling the fuel tank, and integrating the retractable landing gear system.
Radio Control: A minimum 5-channel radio system with 8 servos is required for operation, allowing control over ailerons, flaps, elevator, rudder, and engine throttles. The manual advises referring to the radio's instruction manual for proper handling.
Engine Operation: The model is powered by twin engines, requiring specific equipment for starting, such as glow engine fuel (if applicable), a fuel pump, plug wrench, engine starter, and a 12V battery for the starter. The manual warns against using normal gasoline with glow engines.
Retractable Landing Gear: The model features a three-wheel retract system, which requires careful assembly and adjustment to ensure proper function. The manual includes a diagram for connecting the air tank, air valve, and retracts.
Pre-Flight Checks: Critical pre-flight checks include verifying the Center of Gravity (CG) and ensuring all control surfaces are adjusted according to the specified values. The manual explicitly warns against flying the model without proper balancing, as it could lead to serious injury or death.
Safety Precautions: The manual highlights several safety precautions:
- Assembly should be done in places out of children's reach.
- Sufficient safety precautions must be taken before operating the model.
- The model is not a toy.
- First-time builders should seek advice from experienced individuals.
- Securely glue components like the wing sections to prevent detachment during flight, which could cause loss of control and accidents.
- Only use a minimum 5-channel radio for airplanes.

Maintenance Features

The manual implicitly suggests several maintenance aspects through its assembly and adjustment instructions:

Regular Inspections: The need to check all parts for defects or missing components before assembly implies a need for regular inspection of the model's integrity.
Adhesive Application: The use of epoxy glue and instant glue (CA glue, super glue) for various parts suggests that periodic checks for loose or failing adhesive bonds might be necessary.
Smooth Movement: The instruction to "ensure smooth non-binding movement while assembling" for control surfaces indicates that linkages and hinges should be regularly checked for free movement and lubrication if necessary.
Tightening Screws: Instructions to "insert and tighten the screw" for components like the fuel tank imply that all fasteners should be checked for tightness periodically to prevent loosening due to vibration during flight.
Control Surface Adjustment: The detailed adjustment diagrams for ailerons, elevator, and rudder suggest that these settings may need to be re-checked or fine-tuned over time to maintain optimal flight characteristics.
CG Verification: The emphasis on checking the CG before every flight indicates that the weight distribution might shift, requiring re-positioning of the receiver and battery to maintain the correct balance.
Component Replacement: The accessory lists for each assembly step imply that individual components can be replaced if damaged, facilitating repair and maintenance.