Stevens Aero Model Built It! Daddy-O 525 Manual

Daddy-O 525

Wing Span: 52.5 inches | Wing Area: 485 square inches | Average Flying Weight: 36 ounces

Build Instructions - Version 1.24 (revised 06.08.2015)

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

Project Checklist

Kit Contents

☐Laser cut wood (29 Sheets - See inventory on following pages)

☐Illustrated Build Instructions (No plan sheet is required or included with kit)

☐1 - Wind screen, laser-cut PTEG

☐2 - Wire landing gear, pre-bent

☐Balsa strip wood pack.

1 - Balsa strip,1/4 in. square x 48 in. length (Leading Edge) [166]

3 - Balsa strip, 1/8 in. x 3/16 in. x 36 in. length (For Turbulators) [841]

3 - Balsa strip, 1/8 in. x 1/4 in. x 48 in. length (Spar Cap / Wing Tip Lamination) [160]

7 - Balsa strip, 1/8 in. x 3/16 in. x 24 in. length (For Turbulators)

25 - Balsa strip, 3/32 in. x 3/16 in. x 24 in. length (Fuselage Stringers)

1 - Du-Bro RC 30 in. Micro2 pushrod system [DUB922]

1 - Paper tubing, servo wire guides, 10.45 in. diameter x 18 in. length

2 - 24 in. length of flat carbon stock (0.019 x 0.118 in.)

☐Wire pack (taped to back of wood brick)

1 - Music wire, 1/16 in. diameter x 12 in. length [1006]

1 - Music wire, .045 in. diameter x 24 in. length [*]

☐Large Hardware Bag (5 x 8 in.)

1 - Aluminum tubing, 3/16 in. diameter x 6 in. length [2014]

1 - Retractable ball point pen [*]

1 - Elevator Joiner “E7”, laser-cut basswood [*]

1 - Package, Du-Bro RC Mini-EZ connectors (DUB845) [4021]

1 - Package, Du-Bro RC Control horns (DUB107)

1 - Tail wheel, 3/4 in. diameter, Sullivan [4010]

1 - Pair foam wheels, 2-1/2 in. diameter (DUB250SL)

1 - Wheel bushings, 2 in. length of 5/16 in. diameter aluminum tube [*]

☐Small Hardware Bag (2 x 3 in. Within Large Hardware Bag)

1 - Nylon tubing, splined, 2 in. length 1/8 in. O.D. [*]

1 - Silicone fuel tubing, 1 in. length [4005]

2 - Dished nylon washers, black, Du-Bro [4016]

2 - Landing gear straps, Du-Bro RC [3017]

2 - Micro2 EZ Links, Du-Bro RC [4019]

3 - Nylon knurled head screw, 8-32 thread, 1-1/4 in. length [3026]

3 - Blind nut, 8-32 without prongs [3003]

4 - Landing gear screws, #2 x 3/8 in. length [3012]

6 - Windscreen screws, #0 x 3/16 in. length [3010]

6 - Magnets, 3/16 in. diameter [4014]

6 - CA hinge material [4024]

8 - Blind nut, 4-40 [3001]

8 - Motor mount screws, 4-40 x 3/8 in. [3007]

12 - Cowl/Wheel Pant screws, #2 sheet x 1/4 in. length [3011]

Build Instructions

Project Checklist Continued

Required Electronics (Available at StevensAero.com)

☐4-6 Channel transmitter and mini receiver.

☐3 - Hitec HS-65HB servos (Ailerons and Elevator)

☐1 - Hitec HS-65MG servo (Rudder)

☐2 - 12 in. servo extensions (Ailerons)

☐Hacker A30-16M Motor 11x5.5 APC E Propeller

☐Castle Creations Phoenix 35 ESC.

☐11.1V 2100mAH (25C) LiPo Battery

Required Building Supplies and Tools (Available at StevensAero.com)

☐1 oz. Medium CA Glue

☐1/2 oz. Thick CA Glue

☐1/2 oz. Thin CA Glue

☐CA glue accelerator (kicker)

☐Balsa filler

☐Hobby Knife with ample supply of #11 blades

☐Sanding block with 400 and 600 grit paper

☐Heat Gun and Covering Iron

☐Small Needle Nose Pliers

☐Small Round “Rat-Tail” file.

☐2 ea. 1/8 in. dia. Drill Bit

☐1/2 in. or 12mm Socket

☐1 in. x 12 in. length sticky back velcro

☐2-3 Rolls AeroLITE or AeroFILM covering

☐1 Roll of AeroTRIM self adhesive trim sheet

Suggested Building Supplies and Tools (Available at StevensAero.com)

☐CA glue de-bonder

☐Long sanding bar

☐Razor Plane

☐Razor Saw

☐Low Tack Painters Masking Tape

☐Rubber Bands

Build Instructions

General Assembly Instructions

Thank you, for purchasing this Stevens AeroModel Daddy-O 525™. A design inspired by Thayer Syme’s

RC version of the McGuire Daddy-O free flight embryo model. This kit has been developed and

manufactured using state of the art CAD/CAM systems and features a unique interlocking construction

process that, when compared to traditional methods found in other model aircraft kits, save 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 intermediate model builder and “pilot”;

we invite absolute beginners to correspond with us, or to seek the help of another seasoned builder. At

any time should one run across a term or technique that is foreign please don’t hesitate to contact our

staff with your questions.

READ THIS

Please READ and RE-READ these instructions along with any other included documentation prior to

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

Pre-sanding

Do not skip this step. Prior to removing any parts from the laser cut sheet wood use a sanding block

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

any residue produced as a result of the laser cutting process and, as we have found that most stock wood

sizes run several thousandths of an inch over sized, slightly reduces the thickness of each sheet.

Leave your pre-sanded parts in the sheet until required in the assembly process.

Protecting your worktable

Use the poly tube that this kit was shipped in as a non-stick barrier between your worktable and the

product assembly. Promptly clean up any epoxy spills with rubbing alcohol and a disposable towel.

Bonding the assembly

As this product tabs, notches, and otherwise interlocks like a 3D puzzle we suggest that when fitting parts

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

using this dry-fit technique which allows ample opportunity to inspect the fit and location of assembled

components and realizes a benefit as each successive part contributes to pulling the entire assembly

square. Once you arrive at the end of a major assembly step(s) square your work on top of a flat building

table and revisit 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 more square and true assembly.

Unless otherwise noted in the instructions, always use medium CA glue for bonding parts.

Never force the ﬁt!

Remember this is a precision cut kit our machines cut to within 5 thousandth of an inch in accuracy. Yet

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

wood stock can cause some tabs/notches to fit slightly tight. With this in mind, should you find a joint or

two to fit rather snug consider lightly sanding a tight fitting tab rather than crushing and forcing your parts

together. You’ll break fewer parts in assembly and will end up with a more square and true assembly.

Build Instructions

Laser Cut Parts Inventory

Build Instructions

SAK-D525 01/29

SAK-D525 02/29

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SAK-D525 06/29

Laser Cut Parts Inventory

Build Instructions

SAK-D525 07/29

SAK-D525 08/29

SAK-D525 09/29

SAK-D525 10/29

SAK-D525 11/29

SAK-D525 12/29

Laser Cut Parts Inventory

Build Instructions

SAK-D525 13/29

SAK-D525 14/29

SAK-D525 15/29

SAK-D525 16/29

SAK-D525 17/29

SAK-D525 18/29

SAK-D525 19/29

SAK-D525 20/29

Laser Cut Parts Inventory

Build Instructions

SAK-D525 21/29

SAK-D525 22/29

SAK-D525 23/29

SAK-D525 24/29

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Laser Cut Parts Inventory

Build Instructions

SAK-D525 27/29

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SAK-D525 29/29

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