Seagull Models YAKOVLEV YAK 3 ARF User Manual

1
ASSEMBLY MANUAL
Specications:
Wingspan---------------63.0 in (160 cm).
Wing area---------------723.9 sq.in ( 46.7sq.dm).
Weight-------------------11.5 lbs ( 5.2 kg).
Length-------------------55.4 in (140.6 cm).
Engine-------------------20cc
Radio--------------------7 channels with 9 servos.
“ Graphics and specications may change without notice ”.
YAKOVLEV YAK 3
- 63 inch
Code: SEA270

Seagull Models YAKOVLEV YAK 3 ARF Specifications

General

Servos	5
Flying Skill Level	Intermediate/Advanced
Construction	Balsa and plywood
Retracts	Optional
Radio	4 channel

Summary

Introduction and Preparation

Introduction and Safety Warnings

Overview of the YAK 3 model, its specifications, and essential safety precautions.

Kit Contents and Supplies

Lists all included parts and necessary additional tools/items for assembly.

Wing Assembly and Controls

Hinging Control Surfaces

Detailed steps for hinging the flap and aileron control surfaces.

Installing Control Horns

Steps for attaching control horns to wing surfaces.

Servo and Pushrod Installation

Guide for installing servos and pushrods for aileron and flap controls.

Fuselage, Engine, and Landing Gear Installation

Landing Gear Installation

Instructions for installing fixed and optional retractable landing gear.

Fuselage Servo and Control Setup

Mounting servos for elevator, rudder, throttle and connecting controls.

Fuel System and Engine Mounting

Installing the fuel tank, engine mount, engine, and cowling.

Electric Power Conversion and Tail Assembly

Electric Power Conversion

Steps for converting the model to electric power operation.

Tail Surfaces and Control Linkages

Installing horizontal/vertical stabilizers, rudder, and connecting pushrods.

Tail Wheel Mounting

Guide for installing the tail wheel assembly.

Finishing, Balancing, and Flight Readiness

Cockpit, Canopy, and Decals

Installing cockpit elements, pilot, canopy, and applying decals.

Wing Attachment and Balancing

Securing the wing and achieving proper center of gravity.

Flight Preparation and Preflight Checks

Final checks, control surface throws, and preflight inspection.