Trainer 40 ARF (oz12190)
About this Plan
Trainer 40 ARF. Radio control sport trainer model. Wingspan 60 in, wing area 660 sq in. For .40 2-stroke engines.
Discontinued ARF kit from Tower Hobbies.
Quote: "Attached are plans for a popular trainer offered by Tower Hobbies that is now discontinued. Several friends own this trainer and some are in need of repair so I reverse-engineered a plan that can be used to create replacement wings, fuselage, or stabilizers. If you are starting from scratch you can build a grounds-up model by ordering a short kit from the Balsa Workbench see http://www.balsaworkbench.com/?page_id=302
The plan was created by measuring all the parts from a new unassembled ARF kit found on eBay. Some minor changes to the internal construction were made to simplify assembly or because the covering blocked clear visibility to the exact dimensions of the part, but the outer dimensions and flying characteristics were not altered.
The assembly manual can be found on the web and may be useful but I think most any builder even beginners will be able to construct the model. I am starting construction and will add photos as they become available."
Direct submission to Outerzone.
See supplement file for full instruction manual (24 pages), found online (in 'discontinued' section) at: https://www.towerhobbies.com/products/pdf/
Quote: "Tower Hobbies Trainer 40 ARF. Almost Ready-To-fly Radio Controlled Model Airplane. Assembly Instructions.
Congratulations! You’re about to build in a few days what took pioneers years - a powered machine that flies. Specially created for you and other first-time radio control modelers, the Tower Hobbies Tower Trainer 40 ARF offers nearly all the excitement of piloting a real airplane - and develops skills that will take you anywhere you want in your new hobby.
Accessories Required to Complete our Tower Trainer 40:
4-Channel Radio With 4 Servos
Engine; (See Engine Selection)
Spare Glow Plugs (Tower R/C Long – TOWG1001)
Medium Fuel Tubing (GPMQ4131, 3 ft)
1/4 in Latex Foam Rubber Padding (HCAQ1000)
1/16 Foam Wing Seating Tape (GPMQ4422)
#64 Rubber Bands (TOWQ1220)
Screw-Lock Pushrod Connectors (GPMQ3870)
A quality brand .40-size engine will be needed. Also a prop will be
required for the engine (follow the manufacturer’s recommendations
for appropriate sizes). We recommend the Top Flite Power Point
brand of props. We recommend the following engines:
Tower Hobbies .40 ABC
OS .40 LA
OS .40 FX
We are so confident that the Tower Trainer 40 ARF is the best almostready- to-fly trainer available that we make this guarantee. You will successfully learn how to fly with the Tower Trainer or we will replace it with your choice of another trainer of up to equal value. All we ask is that you learn under the supervision of a qualified, club-designated instructor, follow normal safety precautions, fly at an AMA-chartered club field and construct the kit as outlined in this instruction manual.
Draw a centerline on both sides of the plywood wing joiner as shown.
Locate the two 3/8 in square x 1-11/16 (9.5mm square x 43mm) aileron servo tray mounting blocks. Mark a centerline on the blocks. Using the wing joiner as a guide, mark the wing dihedral angle on both of the aileron mounting blocks. Set the blocks aside for use in later steps.
Using a flat sanding block or similar tool and 120-grit sandpaper, sand the wing roots so they will fit together without any gaps. Do not sand too much or the dihedral angle could change..."
Supplementary file notes
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
Do you have a photo you'd like to submit for this page? Then email email@example.com
User commentsNo comments yet for this plan. Got something to say about this one?
Add a comment
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
© Outerzone, 2011-2020.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.