About this Plan
A-10. Rubber contest model. Liestungs-Motorflugmodell A10. Designed for the 1937 Wakefield rubber contest.
As requested on the wanted page.
Note this plan shows all parts and formers (and the wing layout) at fullsize, but the main fuselage layout drawing is shown at 1:2.5 scale.
Direct submission to Outerzone.
Update 02/02/2020: Added a couple of photos of a completed A-10 model built by Leigh Richardson, found online at http://www.oldwakefields.com/23621.html thanks to RFJ.
Update 05/02/2020: Added article, in German, from "Deutche Luftwacht Modellflug 1936/37 Part 2" (includes bill of materials) thanks to Patrick, hlsat.
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User commentsWith all that wing area this must have been the F-104 of Wakefileds. Climb fast, "reach" the ground faster!
But look at all those fantastic pictures in the link! There's even a gentleman properly attired in pith helmet and bloomers!
Miguel - 03/02/2020
I think this contender was more something of a daring experimental than anything else, because it had a T-tail and was almost of tandem wing configuration plus a fuselage that looks like an attempt to design a lifting body. I would really like to know how well it actually performed in comparison to contemporary contest entrants.
Martin - 03/02/2020
Martin, I share you curiosity about its performance and speculation about the designer's intention to make all elements lifting as Giuseppe Bellanca was known to do. The design seems to be heavily inspired by the Mauboussin Hémiptère which Paul modeled prior to creating this design. I was hoping the plans showed a CG location.
Patrick - 04/02/2020
Hi Patrick, thanks for pointing me towards the Mauboussin Hemiptere! There are 4 Mauboussins at outerzone. The one by Eduard Fillon (a prolific peanut producer) shows the CG at about 50% of the front wing. This might be a good point to start. Cheers, Martin
Martin - 04/02/2020
Martin, I did notice the possibility of an experiment in lifting body configuration but neglected to mention that. Having my misgivings regarding the efficiency of this I am inclined to maintain my F-104 simile. This being a simple and small design it would be easy to build a second model but with a conventional fuselage and compare performance of both.
Miguel - 04/02/2020
Hi Miguel, I am out of building larger flying models than walnut scale for quite some time (mostly building paper models now due to time constraints), so you probably are right in your guess. Cheers, Martin
Martin - 04/02/2020
I've discovered the "Bill of Material," or "Parts List" if you prefer, for the A-10.
It begins on pdf document page 148 of the 1936/37 Part 2 "Luftwacht" publication that can be found at this link. https://rcbookcase.com/details.php?publication_id=1911
I do not have a pdf editing application so I cannot extract it. Perhaps someone else can and add it to the plan set.
The same issue has an article about the plane beginning on page 146. Unfortunately, the text is Fraktur which makes translation real work.
Patrick - 05/02/2020
Got it, thanks Patrick. Have added those article pages (inc BOM) as a supplement file, now.
SteveWMD - 05/02/2020
Hi Martin, I was always daunted by paper models, I never managed anything decent. I'm aware they can even provide a suitable base for flying models, I remember an article in some RCME about these with IC engines. Maybe my fears are exaggerated ;-)
My guess is as good as yours, we only have to find a volunteer to test both. I never trusted the lifting body very much, probably they don't generate so much lift for so many losses especially with odd shapes like this A-10.
With careful design the concept may work, see the Dyke's Delta (oz6415) or the Facetmobile (https://en.wikipedia.org/wiki/Wainfan_Facetmobile), the Vincent Burnelli designs, the NASA experimental M2-F1/2 and HL-10, or even Gerry Anderson's Thunderbird 2!
Concerning instructions and BOM, I think we should be grateful for having such a troublesome copy, a BOM detailing dimensions of every single matchstick and bit of covering paper is too Germanic for my comfort 8-)
Miguel - 05/02/2020
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