Ansaldo SVA4 (oz1673)
About this Plan
Ansaldo SVA. Scale control line biplane model.
Quote: "Model Aircraft December 1961. Ansaldo S.V.A.4. 45in span Scale C/L by Cesar Milani. Supposedly not the final plan but apart from the extra promised constructional sketches looks pretty complete to me. "
Quote: "Cesar Milani's Ansalso SVA 4.
FOLLOWING the feature on Captain Milani's scale models which appeared in the March 1960 edition of Model Aircraft, we received many requests for working drawings. At that time no such drawings were available, but we are now able to present plans for the latest of the Milani Masterpieces - the Ansaldo S.V.A. 4. This model won a silver medal at the 1961 Model Engineer Exhibition and its excellent flying performance has been widely demonstrated.
This is the second model of the Ansaldo that Capt Milani has built as, since completing the first one, much prototype data has come to light, revealing errors in the original model. The Ansaldo featured here is the result of much careful research and is really authentic. It is not an easy model to build, although simpler than most of the designer's other eye catchers! But for those who are looking for a. certain scale contest winner, or a really worthwile model on which to lavish their modelling skill, the Ansaldo is the answer.
A unique feature of this model is the method of assembling the main components - they are all bolted together in the true prototype fashion and may he removed and replaced as required. 'We would emphasise that constructionally, it is a subject for the advanced builder only and quite unsuitable for a novice, although the accurately completed model is a real dream to fly and quite without vices.
Fuselage. This is undoubtedly the trickiest bit of the aeroplane, since there is no continuously flat surface from which to work! The section changes from rectangular at the nose, to triangular at the tail and both top and bottom longerons are curved. There are several possible methods by which the basic frame can be built, but the one we suggest is that shown on the drawings.
Formers A to G are drawn out on 1/8 in ply, carefully marking the datum and centre lines - this is very important. The engine you are to use will determine the spacing of the engine bearers and, obviously, this measurement will not necessarily be the same as that shown on the plan. The original employed an Anderson Spitfire spark ignition engine, of about 11 cc, the power output of which is approximately equal to a good glow .35 and one of the variable speed R/C .35 or .45 engines currently popular, would be an ideal choice.
Fuselage construction is commenced by laying the drawing over a flat hoard and covering it with waxed paper. The two lower spruce longerons are carefully steamed to shape, over the spout of a boiling kettle, working very slowly and being careful not to break the wood fibres in the process.
Now, over the plan view, securely fix the accurately made 1/2 in thick fuselage jig blocks (see side view). Draw vertical lines on the blocks to indicate the exact fuselage centre line and former widths, and pin the pre-shaped lower longerons in place. When satisfied that these are accurately positioned, glue formers A to D in place, being careful to keep them perfectly upright. A piece of 1/4 in sq balsa temporarily cemeted behind the lower edge of the formers will enable them to be pinned in position..."
Supplementary file notes
Planfile includes article.
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
by Cesar Milani
from Model Aircraft
Scale IC C/L Biplane Military
all formers complete :)
got article :)
Found online 11/10/2011 at:
Format: • PDFbitmap
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, 2011-2019.
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.