Hovey Wing Ding (oz12765)


Hovey Wing Ding (oz12765) by Walt Mooney 1983 - plan thumbnail

About this Plan

Hovey Wingding. Peanut scale model.

Quote: "Every now and then Perfesser Peanut does something outside the realm of rubber powered Peanuts. This time it's a CO2 powered, scale ultralight named Wing Ding.

The Wing Ding was conceived by RW Hovey as a simple, easily built, and easily dismantled (for ground transporting), ultralight homebuilt airplane. The little design makes an intriguing peanut scale model. As a basic design, it has some drawbacks as a peanut. First, the motor base and allowable propeller diameter are too small for a rubber powered model. Second, it is a pusher configuration, and might be hard to balance. Bill Brown's CO2 engine, the A-23, makes the Wing Ding a real possibility. It will swing the right diameter propeller, and the tank system can be installed so that there is a good chance of balancing the model.

The full-size airplane has a built-up, plywood-covered, forward fuselage body with an aluminum tube tailboom. The tail surfaces on the prototype were foam core with cardboard covering, although this has been replaced since the early flights with a built-up fabric-covered empennage. It has wire braced, fabric-covered biplane wings and conventional, tail dragger type landing gear.

The model was built to resemble the early prototype version, so it uses sheet balsa tail surfaces. Before the model was covered, there were doubts that the tail was large enough and light enough to allow good flying characteristics. A larger, built-up set, of flying tail surfaces was constructed. However, the model was test flown with the scale-size balsa sheet surfaces, and it flies very well.

The high thrust line of the engine tends to hold the nose down under power, so the powered portion of the flight is relatively fast, while the glide tends to be considerably slower. The center of gravity location shown on the plan is where the model in the photos balances. Probably, this is about as far aft a CG as is allowable. A CG slightly forward of the position shown might be a little better. Even so, with the CG as shown, the model needed a 1/32nd shim under the top motor mounting lug to give a few degrees of up-thrust. Without this up-thrust, the climb was very shallow.

The model is also sensitive to rudder adjustments, as might be expected with the vertical tail directly in the slip-stream. If the turn is tight, the model will tend to spiral dive, however, wide turning circles have proven to be quite safe. Some side area forward of the CG will tend to reduce the spiral diving tendency, so don't forget to have a pilot. A fat pilot might be even better, both from the standpoint of forward side area, and the forward center of gravity location.. "

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

Hovey Wing Ding (oz12765) by Walt Mooney 1983 - model pic

  • (oz12765)
    Hovey Wing Ding
    by Walt Mooney
    from Model Builder
    June 1983 
    13in span
    Scale CO2 F/F Biplane Pusher Civil
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 14/01/2021
    Filesize: 281KB
    Format: • PDFbitmap
    Credit*: MB2020
    Downloads: 751

  • Hovey_Whing_Ding | help
    see Wikipedia | search Outerzone
    Test link:
    search RCLibrary 3views (opens in new window)

    ScaleType: This (oz12765) 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/Hovey_Whing_Ding
    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.

Hovey Wing Ding (oz12765) by Walt Mooney 1983 - pic 003.jpg

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

Hi! Sending along a photo of my great flying Wing-Ding, based on Walt Mooney's peanut scale plan [pic 003]. Instead of balsa and tissue, I used the 2mm foam wallpaper and sparse use of basswood strips. Also, in place of a Brown A-23 Campus CO2 motor, I installed a 5F capacitor-electric lifted from a toy ("hand throwing glider" as it is described). AUW is half Walt's and flights are slow and the model is able to hold tight circles making it ideal for indoor flying. All the best,
Adrian Culf - 20/07/2022
Add a comment



Download File(s):


* 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.


Terms of Use

© Outerzone, 2011-2024.

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.