Molt models Tyro 150 Building Instructions

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Molt Models Tyro150 Building Instructions

Molt Models Background Design Philosophy

When I was first introduced to this hobby in 1985, the first plane my Dad and I flew was one of the typical .40 sized glow powered trainers still available today. Since then however, technological advances in both electric motors and batteries have completely changed the look of radio controlled model airplanes. These changes also brought forth a completely different style of trainer airplane. Many of these new electric powered trainers are wonderfully stable and easy to fly. However, in my opinion, they lack flight c h ar acteristics that I associate with the typical .40 sized glow powered trainer that truly prepare the novice pilot for the next level of flying. The Molt Models Tyro150 contains all the capabilities associated with the typical .40 sized glow powered trainer, but includes the simplicity of electric flight and a much lower wing loading.

The Molt Models design philosophy is comprised of methods that enhance appearance and all around flight performance. The first thing you’ll notice about a Molt Models kit is that the majority of wood parts, illustrations and plans are CAD based. These items are derived from the same 3D modeling environment that the plane was designed in. My goal is to cut down on wordy instructions and use a more visual approach that will get you from kit to airborne in as little time as possible.

Molt Models Tyro150

Thank you for purchasing the Molt Models Tyro150. This kit represents a true first in 4-channel electric trainers in that it possesses characteristics that make it both enjoyable to build and more importantly, fly. I sincerely hope that you enjoy your new Molt Models kit. Please visit us at

www.moltmodels.com for updates and information on future kits.

Manual Revisions

Rev 0 - Initial release

Molt ModelsTyro150 Specifications

Length: 45.5 in Wing Span: 54 in Wing Area: 558 in Flying Weight: 37.0 ~ 45.0 oz Wing Loading: 9.52 ~ 11.61 oz/ft Power System: 150~250 W see next section of manual) Functions: Aileron, Elevator, Rudder, & Throttle Battery Pack: 3S1P, 1200mAh or larger Lithium Polymer

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Molt Models Tyro150 Building Instructions

Components you will need to complete the Tyro150 kit:

• (1) Power system Motor Type = Radial moun t brushle ss outrunner Power = 150~250 W

Kv = 1000~1250 RPM/Volt Weight = 2.5~3.5 oz Propeller size = 10x5~12x6

ESC Type = appropriate for selected motor Battery connector = appropriate for selected motor

• (1) Receiver

4-channel receiver with Y-harness

Or

6-channel receiver (flaperon setu p)

• (2) 12” servo extensions (for aileron lead ex tensions through wing)

• (4) Servos (HS-81, HS-81MG, HS-85BB, HS85MG or equivalent)

• (2) Rolls of Solarfilm covering

Supplies and tools you will need to complete the Tyro150 kit:

• Hobby knife and blades

• Ruler

• Covering iron

• Fine tip ink pen

• Fine/medium sand paper

• 5-minute epoxy

• Thin CA glue and fine extension tip

• 40W soldiering iron

• Soldier paste/flux

• Soldier

General model building tips, orientation, and how to use this manual

First and foremost, this kit is for the first time wood kit builder. However, it is still important that you study this manual and get help from an experienced builder if you run into trouble.

Please be sure to read through the following instructions before attempting to build your Tyro150. Having a good idea of what to expect as you progress will cut down on mistakes

and allow you to better organize your project. Checkboxes have been provided in front of each step, allowing you to easily keep track of your work.

Thin CA glue is suitable for almost all the build sections of this model. If another type of glue is necessary for a certain build section it will be recommended in that segment.

Standing behind the plane orients the left and right side of the model. These building instructions refer to areas of the model in this manner. All dimensions are presented in English units.

Each section of this manual is organized by showing portions of the plane being built from general construction all the way to covering. However, most experienced builders prefer to completely build each component to the point where it is ready to be covered, build the next components, and then cover all the components at the end of the building process. Feel free to use the checkboxes to help keep track of where you are in the building process regardless of which method you choose to follow.

Molt Models Tyro150 Building Instructions

 Horizontal stabilizer, vertical stabilizer, elevator, and rudder construction

Molt Models Tyro150 Building Instructions

 Horizontal stabilizer, vertical stabilizer, elevator, and rudder sanding

(for covering hinges)

Molt Models Tyro150 Building Instructions

 Horizontal stabilizer, vertical stabilizer, elevator, and rudder covering

Molt Models Tyro150 Building Instructions

 Horizontal stabilizer, vertical stabilizer, elevator, and rudder hinging

Molt Models Tyro150 Building Instructions

 Wing construction

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing construction (continued)

Molt Models Tyro150 Building Instructions

 Wing covering and hardware installation

Molt Models Tyro150 Building Instructions

Aileron construction and covering

Molt Models Tyro150 Building Instructions

 Wing and aileron hinging

Molt Models Tyro150 Building Instructions

 Aileron control rod installation

Molt Models Tyro150 Building Instructions

 Fuselage construction

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage construction (continued)

Molt Models Tyro150 Building Instructions

 Fuselage nose gear installation

Molt Models Tyro150 Building Instructions

 Fuselage nose gear installation (continued)

Molt Models Tyro150 Building Instructions

 Fuselage main gear installation

Molt Models Tyro150 Building Instructions

 Fuselage motor installation

Molt Models Tyro150 Building Instructions

 Fuselage controls and hardware installation

Molt Models Tyro150 Building Instructions

 Fuselage steering control cable installation

Molt Models Tyro150 Building Instructions

 Fuselage cowl trimming

Molt Models Tyro150 Building Instructions

 Fuselage cowl fitting and installation

Molt Models Tyro150 Building Instructions

 Fuselage and hatch covering, and stabilizer/control surface installation

Molt Models Tyro150 Building Instructions

 Elevator and rudder control rod installation

Molt Models Tyro150 Building Instructions

 Wheel and wheel collar installation

Molt Models Tyro150 Building Instructions

 Battery belt installation

Molt Models Tyro150 Building Instructions

 Control surface and steering setup

I recommend you start with the following amount of control surface settings: Ailerons: 1/2" both directions Rudder: maximize in either direction Elevator: 1/2" either direction

(Please note these are measured from the trailing edge of the control surfaces)

Please make sure all control surfaces return to the center position when no inputs are made

on the transmitter. Additionally, take time to make sure the nose gear wheel is properly

aligned so your Tyro150 will track straight on takeoff and landing. Rolling the fuselage and

watching to see if the fuselage tracks straight will accomplish this. If needed, make the

necessary adjustments at the E/Z connector located on the rudder/steering servo until your

fuselage rolls straight and true.

 Balance

I recommend you start by balancing your Tyro150 within the following center-of-gravity

range (C.G. range). Always remember, a slightly nose heavy plane will at least fly, a slightly

tail heavy plane may not.

(After your test flight, feel free to move the balance point to get the desired performance.)

Molt Models Tyro150 Building Instructions

 Pre-Flight

With proper setup and balance you’re ready for your first flight with the Tyro150. If this is the

very first time you’ve attempted to fly a radio-controlled model airplane, please get help

from someone with flying experience. I cannot stress this enough, as help from someone that

knows how to fly will greatly improve your chance of success. In addition, I highly

recommend you purchase the book, “The Pilot’s Guide to Mastering Radio Controlled

Flight”, by Scott Stoops. Scott’s book is without a doubt, the best text available for learning

how to properly fly a radio-controlled model airplane. Scott’s book is available for purchase

through one of his many distributors or direct at the following address.

http://www.rcpilotguide.com

 Flight

On the first flight, get the Tyro150 high enough that you can let off the control sticks to see

what it does without risking a crash. The Tyro150 is a very forgiving model and depending on

the equipment you chose to finish it, you may have to trim it out as necessary. If you

experience some adverse yaw with your Tyro150, I’ve found that it is quite useful to

coordinate the turns by adding some rudder. This can be done manually, or by mi xing some

rudder output with the aileron channel on a computer transmitter.

"Preparation, I have often said, is rightly two-thirds of any venture." – Amelia Earhart

Enjoy your Molt Models Tyro150!

Molt models Tyro 150 Building Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual