Ultimate Biplane 40 (oz13254)
About this Plan
Ultimate Biplane 40. Radio control biplane sport model for .40 engines.
Discontinued kit from Great Planes.
As requested on the wanted page.
Quote: "The Great Planes Ultimate 40 is a high performance, propeller-driven sport biplane that closely resembles the full size Ultimate. The Ultimate 40 is very stable and forgiving, allowing even intermediate skill level pilots to enjoy it.
This is not a beginner's airplane! While the Ultimate 40 is easy to build and flies great, we must discourage you from selecting this kit as your first R/C airplane. It lacks the self-recovery characteristics of good basic trainers such as the Great Planes PT Series. On the other hand, if you have already learned the basics of R/C flying, and you are able to safely handle a 40-size low wing airplane, the Ultimate 40 is an excellent choice to try your skills at flying a biplane.
Engine selection: There are several engines that will work well in your Ultimate 40. We recommend a hot 2-stroke such as an OS .40FX or SuperTigre G45 with a Pitts style muffler. For unsurpassed power and realistic sound, an OS FS-52 4-stroke can't be beat. The engine you select will determine how you build the firewall section, so it is important that you have the engine close at hand while building..."
Direct submission to Outerzone.
Supplementary file notes
Instructions. Complete, 48 pages.
Corrections?
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
-
(oz13254)
Ultimate Biplane 40
by Dan Todd
from Great Planes
1997
43in span
Scale IC R/C Biplane Kit
clean :)
formers unchecked
-
Submitted: 19/08/2021
Filesize: 2037KB
Format: • PDFbitmap
Credit*: DerickScott
Downloads: 2626
-
Ultimate_Aircraft_10_Dash | help
see Wikipedia | search Outerzone
------------
Test link:
search RCLibrary 3views (opens in new window)
ScaleType: This (oz13254) 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.
Notes:
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Ultimate_Aircraft_10_Dash
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 admin@outerzone.co.uk
User comments
I bought this set 15 years ago. It's a shame that Great Planes no longer exists. Because I didn't glue the set together, many elements were missing. I decided to redraw the elements in CAD and finish my model. http://forum.aerodesignworks.eu/viewtopic.php?f=6&t=1884slawek - 19/10/2024
Add a comment
- Ultimate Biplane 40 (oz13254)
- Plan File Filesize: 2037KB Filename: Ultimate_Biplane_40_oz13254.pdf
- Supplement Filesize: 4501KB Filename: Ultimate_Biplane_40_oz13254_instructions.pdf
- help with downloads
Notes
* 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.
Scaling
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, 2011-2025.
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.