Maxford USA Mentor-G V3 Instruction Manual

MENTOR-G V3 ARF

20~30cc GAS ENGINE POWERED R/C TRAINER

INSTRUCTION MANUAL

The M
suited for RC pilots who want to use a fuel-efficient
gas-powered engine. Some of the setup options
include:

ENTOR

-G V3 is a multi-functional RC trainer

 Basic trainer.
 Aerobatic trainer.
 Large-size float-plane trainer.
 Glider or banner tow-plane.
 Load-carrying platform for video

camera(s) or for dropping candy at fun­flys, etc..

We invite you to enjoy the joy of flying this
balsa and light-ply almost-ready-to-fly aircraft.

TABLE OF CONTENTS

I. Important safety precautions ……………………. 1 VI. Assembly instructions ……………………….. 4
II. Warranty, liability waiver, and return policy …… 2 VII. Floats installation and setup …………………. 9
III. Specifications …………………………………… 3 VIII. Setup and adjustments ……………………….. 9
IV. Features of V3 …………………………………... 3 IX. Preparation for transport and field setup …… 10
V. Parts list …………………………………………. 3 X. Preflight checks …………………………….. 10

I. IMPORTANT SAFETY PRECAUTIONS TO PROTECT YOUR MODEL, YOURSELF & OTHERS

1. This product should not be considered a toy, but rather a sophisticated, working model that functions much like a

full-scale airplane. Because of its performance capabilities, this product, if not assembled and operated correctly,
could cause injury to you or spectators and damage to property. Maxford USA provides you with a high-quality,
thoroughly tested model airplane kit with assembly instructions. However, the quality and capabilities of your
finished model airplane depend on how you build it, and your safety depends on how you use and fly it. Any
testing or flying of this model airplane is done entirely at your own risk.

2. Assemble the model airplane according to these instructions. We recommend that you do not alter or modify the

model beyond the assembly options covered in these instructions, as doing so may result in an unsafe or
unworkable model. In a few cases the instructions may differ slightly from the photos; in those instances the
written instructions should be considered as correct. If you have any question or concern about these instructions,
before you proceed with assembly of this product, contact us at [phone], Monday through Friday, except
national holidays, between 9 AM to 5 PM Pacific time.

3. It is your responsibility to install the R/C system and other components in such a way that this model airplane

passes all applicable safety/range tests and that the power system and controls operate smoothly and correctly.

4. Recheck the operation of this model airplane before every flight to ensure that all equipment is still operating

correctly and that the model has remained structurally sound. Also, before every flight check all clevises and
other connectors; do not fly without replacing any that you find damaged or defective.

S140131 Mentor-G V3

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5. If you are not an experienced R/C pilot or have not flown this type of model before, we strongly recommend that

you get the assistance of an experienced R/C pilot.

6. Throughout the lifetime of this model, use only the Maxford USA-recommended or same-sized engine and a new

or well-maintained R/C radio system and batteries recommended by the maker of the engine and radio system.

7. While this kit has been flight-tested to meet or exceed our rigid performance and reliability standards in normal

use, if you plan to perform any extremely high-stress flying, such as racing or advanced aerobatics, or if you plan
to install a larger engine than specified, you (the buyer or user of this product) are solely responsible for taking
any and all necessary steps to reinforce the high-stress points and/or substitute hardware that is more suitable for
such increased stresses.

II. WARRANTY, LIABILITY WAIVER, AND RETURN POLICY

Maxford USA guarantees this kit to be free from defects in material and workmanship at the time of
purchase. All of our products have been inspected in our factory and are checked again when
shipped from our warehouse.

However, Maxford USA cannot directly control the materials you may use nor your final-assembly
process. Therefore, Maxford USA can NOT in any way guarantee the performance of your finished
model airplane. Furthermore, in purchasing this product, you (the buyer or user of this product)
exempt, waive, and relieve Maxford USA from all current or future liability for any personal injury,
property damage, or wrongful death, and if you (the buyer or user of this product) are involved in
any claim or suit, you will not sue Maxford USA or any of its representatives.

If you do not fully accept the above liability and waiver, you may request a return merchandise
authorization number (RMA#) as explained in item 2 below.

If you think there is a missing part or any shipping damage, please read our after-sales service and
return policy as outlined below.

1. Inspect your order upon delivery for any shipping damage or missing part. If you find a problem

you must contact us within 10 days from receipt of your purchase by calling [phone],
Monday through Friday, except holidays, between the hours of 9 AM and 5 PM Pacific time.
During this telephone conversation, and with your support, we will determine how to resolve
your concern.

2. To request an RMA#, call [phone], Monday through Friday, except holidays, between

the hours of 9 AM to 5 PM Pacific time. If we elect to issue you an RMA#, you must clearly
mark this RMA# on the outside of the package. (No return or exchange will be authorized after
10 days from the date of your receipt of the product; any package delivered to us without a
Maxford USA RMA# is subject to being returned to the sender, as received, with return postage
payable upon delivery.) Returned merchandise must be in its original condition as received from
Maxford USA, with no assembly or modification, in the original packing materials, complete
with all manuals and accessories. Return shipping and insurance charges must be prepaid by
you, the buyer.

3. Returned merchandise that is accepted by Maxford USA for credit is subject to a 10% to 20%

restocking fee (the final amount will be determined by Maxford USA upon receipt and
examination of the returned merchandise).

Return Address:

Maxford USA
15939 Illinois Ave., #C
Paramount, CA 90723

IMPORTANT: Print the RMA# issued by Maxford USA

S140131 Mentor-G V3

on the package near the above address.

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III. SPECIFICATIONS

Wingspan ................................................................................................................................ 83-inches

Wing Area ..................................................................................................................... 1,187 sq. inches

Length ..................................................................................................................................... 60 inches

ARF weight ........................................................................................................................... 6.6 pounds

Flying weight (including fuel) ............................................................................................ 11.6 pounds

Recommended 2-cycle gas engine (Not included) ............ CRRC 26i or equivalent (20 to 30CC-class)

Propeller (Not included) .......... 18x6 or 16x10 wood

Radio system (Not included) ................................ Minimum of 4 channels with 5 or 6 standard servos

(Recommended servos: Hitec HS-311 or equivalent)

*

(or as-recommended for your power system)

* (All dimensions and weights are approximate.)

IV. FEATURES OF V3

NEW/IMPROVED FEATURES …

 Enlarged rudder for better control.
 Elevator changed to 2-piece design.
 Larger tail wheel.
 Pre-cut slots for switches.
 Improved linkage hardware.

SPECIAL FEATURES …

 The firewall and most of the fuselage is plywood; the wings and empennage

are mostly balsa.

 The ailerons are operated by separate servos for optional use as flaperons.
 The elevator may easily be setup for two-servo operation.
 Default setup and hardware are for tail-dragger configuration. If tricycle

landing gear is preferred, the builder may mount the main landing gear struts
in the alternate predrilled holes, add an extra layer of plywood, some blind
nuts, a nose wheel, a nose-wheel steering servo and related linkages (these
optional items are not included).

V. PARTS LIST

1. Items you must supply to complete the M

ENTOR

-G

 5-minute epoxy glues, Cyanoacrylate (CA) adhesives, masking tape, a high-speed rotary tool and a

few common hand tools (such as long-nosed and diagonal or side-cutter pliers, etc.).

26CC-class gas engine (or equivalent glow or electric power system)



.

 18x6 or 16x10 propeller (or as-recommended for your engine) and optional spinner.
 Minimum of five(5)

Hitec HS-311

or equivalent standard-sized servos, four(4) 12-inch extensions,

one(1) 12-inch Y-connector, and a 4-channel radio control system.

2. Items included with your Mentor-G

 Precovered fuselage, wing panels, vertical and horizontal stabilizers, rudder and elevator.
 Precut, precovered hatch, secured in position with magnets.
 Aileron, rudder and elevator pushrods and related linkages with precut hinge openings and all required

CA hinges.

 Wooden mount for throttle servo and pushrod for throttle control.
 Tail wheel with steerable wire strut assembly.
 New, improved aluminum main landing gear with mains wheels, axles, and mounting hardware.

S140131 Mentor-G V3

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