Fun 3. Radio control sport model for .40 power.
Quote: "An exciting, easy-to-build sportster, for .40 power and full-house control. Fun 3, by Steve Allanach.
THIS MODEL is the third in a series that I have built to fulfill certain requirements, namely to be as economical to build as possible, and to be easy to transport. I also wanted to use a rear-induction HP.40 for the powerplant, as I had recently acquired one of these. The wing is an all built-up structure for lightness. (A foam wing has been used on some of the prototypes, and was about 1/4 lb heavier - though not having any significant effect on the model's flying characteristics). Lastly, wingtip plates were added mainly for appearance, although they may have helped the low speed characteristics somewhat.
Anyone who has built and flown an RC model before should have no difficulty in building or flying Fun-3, but it is not at all suitable for complete beginners. As a first low-winger it should be quite okay, provided an experienced pilot is on hand, ready to take over in an emergency, for the first few flights.
Fun-3 came well up to what was expected of it, having been built very cheaply, and can be transported in one piece on the back seat of my Mini saloon. I have even managed to win one competition and place 3rd. in two others with it during the past season, so it must have some-thing to commend it. The real point, though, is that it's a really grand fun model - build a couple of 'em during the winter months and enjoy yourself no end next flying season!
CONSTRUCTION: Wing. It is best to build the wing first, so that it can be used to align the fuselage with later on. It is constructed on the egg-crate principle, with the ribs all slotting onto a single main-spar. First cut out the mainspar from one edge of a 48 in long sheet of 1/8 balsa and notch it for the ribs. Epoxy the one-piece undercarriage block to the spar forst of all. The wing ribs are produced by the sandwich method..."
Fun 3, Radio Modeller, January 1974.
Direct submission to Outerzone.
Article pages, thanks to RFJ.
Did we get something wrong with this plan? That happens sometimes. Help us make a correction
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
* 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, 2011-2018.
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.