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E-flite Piper L-4 Grasshopper ARF Assembly Manual

Product Registration

Register your product online at:  

www.e-fliterc.com/register/

Contents of Kit/Parts Layout

EFL5026 

Fuselage

EFL5027 

Wing Panels L&R

EFL5028 

Tail Set

EFL5029 

Landing Gear

EFL5030 

Cowling

EFL5031 

Main Wheel Set

EFL5032 

Windshields

EFL5033 

Hardware

EFL5034 

Pushrods

EFL5035 

Main Struts

UltraCote

®

 Covering Colors

HANU874 

Black

HANU0811 

ParkLite

 Olive Drab

HANU0816 

ParkLite

 Gray

HANU870 

White

Introduction

Combining the compact size of a classic balsa free-

flight model with full 4-channel control, the Piper L-4 

Grasshopper 250 is an exciting alternative to the usual 

park flyer experience. Its exceptionally low parts count 

and time saving features like the magnetically-secured 

plug-in wings make assembly about as easy as it gets 

for an ARF.

In the air, its docile flight characteristics and gorgeous 

scale appearance will reward you with one of the most 

enjoyable park flying experiences available. Plus, it’s 

small enough and slow enough to fly in a large indoor 

venue whenever the park isn’t an option.

Important Warranty Information

Please read our Warranty and Liability Limitations 

section on Page 20 before building this product. If you 

as the Purchaser or user are not prepared to accept the 

liability associated with the use of this Product, you are 

advised to return this Product immediately in new and 

unused condition to the place of purchase.

Using the Manual

This manual is divided into sections to help make 

assembly easier to understand, and to provide breaks 

between each major section. In addition, check boxes 

have been placed next to each step to keep track 

of its completion. Steps with a single circle (

) are 

performed once, while steps with two circles (

 

indicate that the step will require repeating, such as for 

a right or left wing panel, two servos, etc.

Remember to take your time and follow the directions.

Age Requirements

Age Recommendation: 14 years or over. This is not 

a toy. This product is not intended for use by children 

without direct adult supervision.

Table of Contents

Introduction ........................................................... 2

Important Warranty Information .............................. 2

Using the Manual ................................................... 2

Age Requirements .................................................. 2

Product Registration................................................ 2

Contents of Kit/Parts Layout .................................... 2

UltraCote Covering Colors ...................................... 2

Recommended Radio Equipment ............................. 3

Optional Accessories .............................................. 3

Brushless Outrunner Setup ...................................... 3

Required Tools and Adhesives ................................. 3

Note on Lithium Polymer Batteries ........................... 3

Warning ................................................................ 3

Covering Warning ................................................. 3

Landing Gear Installation ........................................ 4

Servo Installation .................................................... 4

Receiver and Speed Control Installation ................... 5

Linkage Installation ................................................. 7

Motor and Cowling Installation for  

use with Prop Saver........................................... 9

Motor and Cowling Installation for  

use with Prop Adapter ..................................... 11

Battery Installation ................................................ 13

Front Windscreen Installation ................................ 13

Aileron Servo Installation ...................................... 14

Wing Attachment, Struts and  

Top Windscreen Installation ............................. 17

Control Throws..................................................... 18

Center of Gravity ................................................. 19

Range Test Your Radio .......................................... 19

Flying Your L-4 Grasshopper ................................. 20

Safety Do’s and Don’ts for Pilots ............................ 20

Daily Flight Checks ............................................... 20

Warranty Information ........................................... 20

CE Compliance Information for  

the European Union ........................................ 22

2009 Official Academy of  

Model Aeronautics Safety Code ....................... 22

Содержание Piper L-4 Grasshopper ARF

Страница 1: ...cations Wingspan 38 2 in 970mm Length 23 7 in 600mm Wing Area 210 sq in 13 5 sq dm Weight w o Battery 8 00 8 70 oz 227 247 g Weight w Battery 9 00 9 70 oz 255 275 g Piper L 4 Grasshopper ARF Assembly...

Страница 2: ...l This manual is divided into sections to help make assembly easier to understand and to provide breaks between each major section In addition check boxes have been placed next to each step to keep tr...

Страница 3: ...screwdriver 1 5mm Drill bit 1 16 inch 1 5mm 5 64 inch 2mm Adhesives Medium CA Threadlock Note on Lithium Polymer Batteries Lithium Polymer batteries are significantly more volatile than alkaline or Ni...

Страница 4: ...he fuselage 3 The landing gear will fit snugly into the slot in the fuselage If you do not plan to remove the landing gear at any time then we suggest that you tack glue it in the slot with medium CA...

Страница 5: ...e servo rails 5 Use a 0 Phillips screwdriver and the screws provided with the servos to secure them in the fuselage Receiver and Speed Control Installation Required Parts Fuselage assembly Receiver Ad...

Страница 6: ...accessed later 6 Use hobby scissors to cut another piece of hook and loop tape to the size of your speed control Apply the hook and loop tape to the speed control and place the speed control in the m...

Страница 7: ...dder pushrod into the tube inside the fuselage 2 Insert the bend in the pushrod wire through the outer hole of the rudder control horn 3 Slide a micro pushrod keeper over the end of the pushrod wire 4...

Страница 8: ...pushrod wire for the rudder Secure the servo horn on the rudder servo so it is perpendicular to the rudder servo 11 Use a ruler to make sure the rudder and fin are in alignment with each other Always...

Страница 9: ...rewall using the two 5mm plywood spacers and two 2mm x 16mm sheet metal screws A 0 Phillips screwdriver will be required to tighten the two screws Note that there are two different hole location dista...

Страница 10: ...the motor is centered in the opening of the cowl and that the propeller does not rub against the cowl The cowling should be slid just far enough back that it does not cover the battery tray on the bot...

Страница 11: ...screws 2 The motor shaft must be repositioned to accept the propeller adapter Follow the instructions provided with the motor to reposition the motor shaft Use care not to damage the motor Always use...

Страница 12: ...o over the orange prop in a smooth curved pattern to get a simulated wood finish on the propeller Use low tack tape to keep the cowl in position while drilling the holes 10 Position the cowling so the...

Страница 13: ...en Windscreen support 2 Required Tools and Adhesives Hobby scissors Medium CA Clear tape 1 Route the Y harness to the root ribs of the fuselage as shown 2 Use medium CA to glue the windscreen supports...

Страница 14: ...panel Place the aileron servo on the cover so the servo arm is aligned with the edge of the cover and centered in the slot as shown Make sure the servo does not hang over the edges of the servo cover...

Страница 15: ...ws provided with the servo and a 0 Phillips screwdriver to secure the servo to the servo mounting blocks 8 Use a 00 Phillips screwdriver to remove the servo horn from the aileron servo Use a pin vise...

Страница 16: ...ps screwdriver to secure the cover in the wing 15 Insert the Z bend on the 23 8 inch 61mm aileron pushrod wire through the center hole of the aileron control horn The wire should be inserted through t...

Страница 17: ...cket in the fuselage 3 Continue sliding the wing into position guiding the aileron servo lead in the fuselage Now is a good time to plug the aileron leads into the Y harness The wing will fit tight ag...

Страница 18: ...ff of the top windscreen Use clear tape at the front and rear to hold the windscreen on Control Throws 1 Turn on the transmitter and receiver of your model Check the movement of the rudder using the t...

Страница 19: ...hangs level or slightly nose down This is the correct balance point for your model You might find that you need to shift the battery slightly to either the front or back of the fuselage to achieve th...

Страница 20: ...o starting your aircraft turn off your transmitter then turn it back on Do this each time you start your aircraft If any critical switches are on without your knowledge the transmitter alarm will soun...

Страница 21: ...ditional protection Ship via a carrier that provides tracking and insurance for lost or damaged parcels as Horizon is not responsible for merchandise until it arrives and is accepted at our facility A...

Страница 22: ...ehold waste disposal service or where you purchased the product Age Recommendation 14 years or over Not a toy Not intended for use by children without direct adult supervision 2009 Official Academy of...

Страница 23: ...ront of the line In the case of airshows demonstrations straight line must be established An area away from the line must be maintained for spectators Intentional flying behind the line is prohibited...

Страница 24: ...Printed 08 09 16025 2009 Horizon Hobby Inc 4105 Fieldstone Road Champaign Illinois 61822 USA 877 504 0233 horizonhobby com E fliteRC com...

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