CAP 231 (oz13988)
About this Plan
CAP 231. Radio control sport scale model. Wingspan 72 in, wing area 760 sq in. For .90 2-stroke or 1.20 4-stroke engines.
Quote: "With a .90 - 1.20 for power, this one is sure to please. CAP 231, by Mark Sirianni.
The French Mudry CAP 231 is the hottest new plane on the competition acrobatic circuit. The 231 is a modified CAP 230. It has a section added to the inboard part of the wing at the leading edge and fuselage joint. Unlike the Sukhoi and the Extra 300 that are made of composite materials like carbon fiber, the CAP is basically an old fashioned plywood airplane. It uses a standard 300 hp Lycoming engine. Pilots like the plane because it is easy to maintain and has excellent flight characteristics.
At the 15th World Aerobatic Championships in Yverdon-Les-Bairns, Switzerland, the French pilot Claude Bessiere won first place in his CAP 231 and teammate Patrick Paris took second. This plane is definitely a match for the Sukhoi!
The model cane about because of its good looks and simple design since I had already designed a model of the Extra 300 (oz13986) and a Russian Sukhoi, with the CAP 231 I will have models of the three best acrobatic planes in the world. I originally saw the CAP fly on a TV program about the world of Acrobatic Pilots. After watching the 231 on TV I knew it would make a great model.
The 231 is very similar to the well known CAP 21. The CAP 21 has been around for years and has long been a favorite subject of model builders. The 231 has a few changes over the CAP 21. The wing LE is swept forward near the root, it has a very large wing fillet, and the rudder area is larger. The flight performance is also improved and the color schemes for the 231 are much nicer.
After getting some information and a 3-view from Bob Banka at Scale Model Research, I got started oa my new design.
This plane is an excellent flier but intended for the more experienced pilot. The 231 has a very short nose and a long tail. This can cause some problems with a tail heavy situation, so when building the tail use the lightest wood possible..."
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
by Mark Sirianni
from RCMplans (ref:1179)
Scale IC R/C LowWing Civil
all formers complete :)
got article :)
Found online 29/06/2022 at:
Format: • PDFbitmap
Mudry_CAP_230 | help
see Wikipedia | search Outerzone
search RCLibrary 3views (opens in new window)
ScaleType: This (oz13988) 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/Mudry_CAP_230
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 commentsGood Day, I've attached a few pictures of the CAP 231 I built from RCM plans on Outerzone [main pic, 005-007]. All balsa and ply construction and covered with Ultracote. Power is a Super Tigre .90. Beautiful Breitling graphics and lettering from Callie Graphics.
For more detailed build information visit: https://tslidehaven.com/cap231buildarticle.htm
And for fantastic graphics visit https://callie-graphics.com/
JohnnyB - 04/12/2023
Beautiful covering and graphics!
Jan Novick - 05/12/2023
Thanks for the compliment Jan. I mentioned it in the article I wrote on the build--the airplane won first place in the club build-off, Masters Class. My first ever with a first!
JohnnyB - 06/12/2023
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, 2011-2024.
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.