Aeronca Tandem (oz12762)
About this Plan
Aeronca Tandem. Free flight scale model.
The Ronnie Albert Aeronca Tandem (oz1657) plan was first published in Air Trails February 1942. This here is a later redrawn plan from MB in April 1980.
Quote: "Old Timer Model of the Month: Aeronca Tandem. Designed by Ronnie Albert. Drawn by Al Patterson. Text by Phil Bernhardt.
Scale models rarely find their way into RCMB as the featured Old Timer, so this month we're presenting plans for a 48-inch Aeronca Tandem that appeared in the February 1942 issue of Air Trails. The model was designed by Ronnie Albert and was touted as being of contest caliber, although we doubt that anyone would want to pit one of these against a Ranger or Playboy or similar type model. (The climb must have been pretty rapid, though, as the original used an Ohlsson .23.) Instead, we thought the Aeronca would appeal to those looking for a good, realistic flying scale model that is also a genuine Old Timer.
We tried to find some details on the model's full-size counterpart, but didn't have much luck. All we know is that the real Aeronca Tandem (also called the Tandem Trainer) was built in 1940. Very few were made; the Aeronca factory concentrated instead on building L-3's and O-58 Defenders for the military. At least one full-size Tandem is active, having been restored in 1977.
The model Tandem utilizes very simple construction and would make a fine F/F sport model with a good .049 glow or .09 ignition engine. It would also be a fun little R/C job with three channels and an .09 or .10 in the nose. For control surfaces, try putting the elevator hinge line at the rear stab spar and the rudder hinge line at the front of the tail block on the fuselage; this way the rudder can be continued to the bottom of the fuselage.
The original article included a separ-ate sheet of drawings that showed how to adapt the model to control line. Basically it was similar to modern C/L linkage systems, but with a bellcrank rigged with rubber bands to return it to neutral in case the lines went slack and control was lost, hopefully keeping the model on an even keel until the panicking flier could sprint backwards and regain line tension. Just how much of a pullout he could make is questionable, as the recommended elevator throw was only 3/16 inch up and 1/8 inch down!"
Direct submission to Outerzone.
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
Aeronca_Chief_family | help
see Wikipedia | search Outerzone
ScaleType: This (oz12762) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.
If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Aeronca_Chief_family
Wikipedia page addresses may well change over time.
For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
User commentsAeronca made the T model, called the Tandem Trainer as the first of several models, such as the TA Defender and the O-58 model. There were several engine options for the plane. A model on this design can be easily modified to represent the other models. There were almost 1000 planes produced on this platform during World War II.
Mark Peterson - 26/01/2021
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, 2011-2021.
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.