Stevens Aero Model PACEMAKER Manuel

Wing Span: 27.25 inches | Wing Area: 100 square inches | Average Flying Weight: 2.25 ounces

Build Instructions - Version 1.18 (revised 11.05.2016)

WARRANTY

Stevens AeroModel guarantees this kit to be free from defects in both material and workmanship at the

date of purchase. This warranty does not cover any component parts damaged by use or modification.

In no case shall Stevens AeroModel’s liability exceed the original cost of the purchased kit. Further,

Stevens AeroModel reserves the right to change or modify this warranty without notice.

LIABILITY RELEASE

In that Stevens AeroModel has no control over the final assembly or material used for final assembly,

no liability shall be assumed nor accepted for any damage resulting from use by the user. By the act of

using the user-assembled product, the user accepts all resulting liability.

If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is

advised to return this kit immediately in new and unused condition to the place of purchase.

THIS PRODUCT IS NOT INTENDED FOR CHILDREN 12 YEARS OF AGE OR YOUNGER.

WARNING: This product may contain chemicals known to the state of California to cause cancer

and/or birth defects or other reproductive harm.

PRODUCT SUPPORT

This product has been engineered to function properly and perform as advertised, with the suggested

power system and supporting electronics as outlined within this product manual. Product support

cannot be provided, nor can Stevens AeroModel assist in determining the suitability or use of

electronics, hardware, or power systems not explicitly recommended by Stevens AeroModel.

For product assembly support, replacement parts, hardware, and electronics to complete this model,

please contact Stevens AeroModel at www.stevensaero.com.

Stevens AeroModel

26405 Judge Orr Rd., Colorado Springs, CO 80808 USA

719-387-4187 www.stevensaero.com

Build Instructions

Pacemaker 100 - Kit Inventory

☐Laser-cut wood, 10 sheets (See Sheet Wood Inventory, page 5)

☐Illustrated Build Instructions

☐Plan Set, 2 sheets, 12 in. x 18 in.

Taped to back of wood brick:

☐1 Landing gear, wire, .032 in. x 12 in.

☐2 Push rods, wire, .015 in. x 18 in.

Hardware Bag:

☐1 Delrin receiver clip (5013)

☐1 Heat shrink tube, 1 1/2 in. x 1/16 in. (5012)

☐1 Pair, plastic wheels, 1 1/8 in. diameter (5015)

☐2 Hardwood dowel, 1/8 in. x 2 in. (1017)

☐8 Rubber band, Size #16

Pacemaker - Background

This Laser Engineeredtm design from Stevens AeroModel was directly inspired by the classic JL Sadler

Pacemaker – A lovely “old timer” with a beautiful profile and elegant wing shape. The original Pacemaker

was designed in 1940 and is indeed a unique design for a “old timer” – it features a low wing, and while

not unheard of in the golden age of aeromodelling, it is a rare trait.

Our version of this classic bit of aviation history, the Pacemaker 100, captures the essence of this iconic

model. The Pacemaker 100, while reminiscent of those bygone years, offers a refreshingly modern

design that builds trouble-free and quickly, thanks to laser-cutting processes pioneered by Stevens

AeroModel.

Build Instructions

Suggested Items to Complete this Model

Many of the suggested items listed below are available at your local hobby shop. For your convenience,

Stevens AeroModel stocks all the power system components and most of the building supplies required

to complete this kit. If you have difficulties sourcing any of these items locally, please visit our website,

stevensaero.com to purchase the items necessary to complete your model.

Required Electronics

☐RC transmitter with at least 3 channels

☐Receiver/ESC/Servo brick (PKZ3352 or PKZUA1151)*

☐Motor/Gearbox (PKZ3624)

☐Propeller, 130mm x 70mm (EFL9051)

☐LiPo battery, 120 - 160 mAh 3.7V

*SPMAR6400 or SPMAR6410 may be used with computer radio.

Covering Film Requirements

While any high-quality covering film may be used to finish this model, superior results will be achieved by

using genuine AeroLITE brand covering film, available exclusively from Stevens AeroModel. The lower

working temperature and light weight of AeroLITE are especially desirable for this type of model.

AeroLITE is one-third the weight of typical model covering films, and will present a significant weight

savings when applied to this model.

☐3 - PatchPakTM AeroLITE

Sealing Bare Wood

While not required, it is suggested that a high-quality clear lacquer be used to protect and seal any

unfinished wood. One single light coat of clear lacquer should be sufficient to protect the model from

moisture, without adding significantly to the model’s final flying weight.

Many parts of this model may be colored using a lacquer-based spray paint. Listed below are some of

the products we have used on our models. Please feel free to use whatever products you prefer.

☐DEFT clear lacquer-based sealant (available at most hardware stores)

☐Design Master Color Tool, lacquer-based spray paint (available at most arts and crafts stores)

Build Instructions

Required Building Supplies and Tools

☐CA glue, medium, 1/4 oz (PAAPT04)

☐CA glue, thin, 1/4 oz (PAAPT10)

☐CA glue applicator tips (PAAPT21)

☐CA glue accelerator (PAAPT15)

☐Hobby knife with supply of #11 blades

☐Sanding block with 400 and 600 grit paper

Building Supplies and Tools

☐Covering iron and heat gun

☐Needle nose pliers, small

☐Clear tape, 1/2 in. (DUB916)

☐Velcro for mounting battery (PKZ1039)

☐Masking tape (low-tack blue painters’ tape)

☐AeroLITETM covering film

Optional Building Supplies and Tools

☐Balsa filler

☐Modeling clay (ballast)

☐CA glue de-bonder (PAAPT16)

☐Required Building Supplies

☐

☐Clear lacquer-based sealant (DEFT)

☐Lacquer-based spray paint (Design

Master®)

Sheet Wood Inventory (1 of 1)

Build Instructions

Builder’s Notes

Build Instructions

General Assembly Instructions

Thank you for purchasing the Pacemaker 100 from Stevens AeroModel.

This model has been developed and manufactured using state-of-the-art CAD/CAM systems. Our kits

feature a unique interlocking construction process, that when compared to traditional building methods,

saves countless hours of measuring, cutting, sanding, and fitting. We are certain that you’ll find our kit to

offer a truly exceptional build experience.

As this kit is recommended for the novice model builder and pilot, we invite beginners who have

purchased this kit to seek the help of an experienced builder and pilot. If at any time during the assembly

of this kit, should you run across a term or technique that is foreign to you, please contact our staff with

your questions.

IMPORTANT!

Please READ and RE-READ these build instructions along with any other included documentation before

starting your build and/or contacting our staff for builder support.

Pre-Sanding

DO NOT SKIP THIS STEP. Before removing any parts from the laser-cut sheet wood, use a sanding

block loaded with 250 - 400 grit sandpaper and lightly sand the back side of each wood sheet. This step

removes any residue produced as a result of the laser cutting process. We have found that most stock

wood sizes run several thousandths of an inch oversized. This step also slightly reduces the thickness of

each sheet of wood. Leave all parts in the sheet wood until required for assembly.

Protecting Your Work Surface

Use the poly tube that this kit was shipped in as a nonstick barrier between your work surface and the

product assembly.

Bonding the Assembly

This product’s tabs and notches interlock like a 3D puzzle. We strongly suggest that when fitting parts,

you dry fit (use no glue) the parts together first. It is advised to work 1 - 2 steps ahead in the instructions,

using this dry-fit technique. This allows the opportunity to inspect the fit and location of assembled

components, and shows the benefits of our construction technique. As each successive part is added, it

contributes to pulling the entire assembly square. Once you arrive at the end of a major assembly

sequence, square your work on a flat work surface and bond the dry fit joints with glue. Using the dry-fit

process, you’ll be able to recover from a minor build mistake and will ultimately end up with a square and

true assembly.

Unless otherwise noted in the instructions, we find it easier to “tack glue” parts (temporarily bonding parts

in assemblies, using a small dot of glue). When using medium CA glue, apply with a fine-tip CA glue

applicator. Never bond painted or covered assemblies with thin CA, as it can destroy the finish of a

beautifully prepared model.

Never Force the Fit!

This is a precision laser-cut kit. Our lasers cut to within 5 thousandths of an inch in accuracy. Yet the

wood stock supplied to us by the mill may vary in thickness by up to 20 thousandths. This variance in the

wood stock can cause some tabs and notches to fit very tightly. With this in mind, consider lightly sanding

or lightly pinching a tight-fitting tab, rather than forcing the parts together. You will break fewer parts in

assembly, and end up with a square and true airframe.

Manual Updates

Please check our website for updates to these instructions before starting the build. To obtain downloads

and updates to this model aircraft kit, please visit the product page at stevensaero.com

Build Instructions

Fuselage

Fuselage parts are designated with the letter “F” followed by a number. Parts have been numbered so

that the fuselage assembly follows a sequential order: F1 to F37.

Note: When initially bonding parts, use a single, small drop of medium CA glue, applied sparingly with a

CA glue applicator tip to “tack glue” the part in place. Should you commit an error in assembly, it will be

easier to recover from the mistake and remove or correct the part in error, if you do not soak the assembly

with glue after each step! This method of assembly will allow our interlocking design to do its job.

As each successive part is installed within the fuselage, it will help pull the entire structure square and

true. When a major assembly is completed, revisit all joints and bond completely. Do not use excessive

amounts of glue, as this only adds weight to the model.

1. Central Crutch - Lay F1 (sheet 01/10, 1/16 in. balsa) on the work surface with the etched

side facing up. Fit F2 and F3 (sheet 09/10, 1/32 in. ply) to the nylon receiver clip supplied in

your hardware bag to make the receiver tray. Fit the receiver tray to the four slots in the

center just forward of the large openings in F1. Bond with thin CA.

2. Fit and tack glue formers F4 (sheet 10/10, 1/16 in. ply) F5, F6, and F7 (sheets 01 and

02/10, 1/16 in. balsa) to F1. F4 goes in the slots immediately forward of the receiver tray.

F5 fits the crosspiece between the first and second large openings. F6 fits immediately

behind the last large opening. F7 fits in the last pair of slots near the rear of F1.

3. Turn the assembly right side up so that the formers are underneath F1. Fit and tack glue

former F8 (sheet 02/10, 1/16 in. balsa) to the front of F1, oriented with the top of F8 pointing

up.

4. Fuselage Sides - Fit and bond F9a (sheet 01/10, 1/16 in. balsa) to F9b (sheet 01/10, 1/16

in. balsa), and F10a (sheet 01/10, 1/16 in. balsa) to (sheet 02/10, 1/16 in. balsa).

5. Turn the central crutch assembly up side down again, so that the formers are on top. Fit

fuselage side F9 to the left side of the assembly, tack gluing it to F1 and formers F4 and F5

only. Repeat this step to fit and tack glue F10 to the right side of the assembly. Continue

working toward the rear of the assembly, tacking the fuselage sides to formers F5 and F6.

Pull the rear of the fuselage sides together, tacking to former F7 and the rear of F1.

Square the assembly on a flat surface, with the top of former F8 hanging over the edge of

the work surface. Final bond all parts together with thin CA.

6. Fit parts F11 (sheet 01/10, 1/16 in. balsa) to the front of former F4, against each fuselage

side, and bond with thin CA.

Build Instructions

□

Build Instructions

Step 1

Step 2

Step 3

Step 4 Step 6

Step 5 Cont.

Step 5

Bottom View

Top View

F6 F7

Top

F9a

F10

Bond

F11

Front

Long Arm

Formers

Underneath

F9b

Bond

F10

Fuselage (continued)

7. Fit parts F12 (sheet 01/10, 1/16 in. balsa) to the rear of former F5, against each fuselage

side, and bond with thin CA.

8. Landing Gear Pocket - Fit F13 (sheet 09/10, 1/32 in. ply) to the notches on the fuselage

sides and the large slots in F1. These notches and slots are oversized to accommodate the

other parts of the landing gear pocket, F13 will rest in the front portion of these openings.

9. Fit F14 (sheet 09/10, 1/32 in. ply) into the same openings, immediately behind and flush

against F13.

10. Fit F15 (sheet 09/10, 1/32 in. ply) into the same openings, immediately behind and flush

against F14. Make sure that all three parts are fully seated, then wick thin CA around the

edges of the parts to bond them together and to the fuselage. Make sure that no glue gets

into the pocket itself.

11. Battery Tray - Fit and bond the battery tray F16 (sheet 09/10, 1/32 in. ply) to the slots in

F13 and the tabs on former F8.

12. Motor Mount - Lay F17a (sheet 09/10, 1/32 in. ply) on the work surface with the side

etched ‘Top’ facing up. Fit and bond two F17b’s to the slots in each side of F17a.

13. Turn the assembly up side down. Fit and bond parts F18 and F19 (sheet 09/10, 1/32 in.

ply) to the bottom of F17a.

14. Fit and bond the assembly to former F20.

Build Instructions

□

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