Ultra Sport 1000 (oz6295)


Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - plan thumbnail

About this Plan

Ultra Sport 1000. Large sized RC sport model.

Later kitted by Great Planes (at 80 inch span).

Quote: "Three years ago I felt there was too big a gap between the average sport airplane and true competition pattern planes. The Ultra-Sport 60 (RCM plan #1048) was designed to fill that gap by offering pattern like performance, with the simplicity and easy handling of a sport model. Apparently many of you agreed with me because the Ultra-Sport 60 (oz6177) and Ultra-Sport 40 have been very successful.

Today, I see another big gap in the marketplace. O.S. makes an exotic (and expensive) supercharged 1.20, but there are very few airplanes available to put it in which can utilize its potential. Super Tigre makes a simple (and not very expensive) 1.5 cu in 2-stroke (the 2500) but most of the airplanes you could put it in are in the giant scale category, where the slower turning Super Tigre 3000 with more torque is a better choice.

There are a few acrobatic sport planes available which can comfortably handle a regular 1.20 and a very few suitable for the 3000, but nothing that offers advanced sport performance for the engines in-between. So there's the challenge; a single airplane that offers Ultra-Sport performance and simplicity for engines in the 1.08 to 1.60 range.

And the challenge has been met! The Ultra-Sport 1000 (that's 1000 sq in) flies just about like the Ultra-Sport 60, and it performs very much the same on a 1.08 2-stroke, a second generation 1.20 4-stroke, or a 2500. A 1.60 twin 4-stroke will fly it very nicely, and with a supercharged 1.20 it's out of sight (literally).

Well, okay, suppose you don't have one of those engines lying around. Why would you want to go to the expense of buying one and building a big airplane that flies 'just about like a 60?' Well, big airplanes are easier to fly, and that means that with the same skills, you can fly the big one better than you can fly the smaller one. They're easier to see, and those big engines sound better too. And last but probably not least, big airplanes are Impressive! If you went to the field with an Ultra-Sport 60 and Ultra-Sport 1000, which one do you think would thaw a crowd?

Requirements: The Ultra-Sport 1000 is no more difficult to build than the 40 and 60 in Ultra-Sport, and it's even easier to fly. Because of its extra size and weight though, the potential for destruction is greater in the event of a mishap. For this reason, I wouldn't recommend the Ultra-Sport 1000 to novice builders or novice fliers. If you're thoroughly comfortable with building and flying an all balsa, symmetrical airfoiled, low wing aircraft, then you're ready for the Ultra-Sport 1000.

The Ultra-Sport 1000 uses six standard servos (plus a 180 degree retract servo for the retract gear option) and an 800 mA receiver battery. You will need to have your chosen engine on hand before you build the fuselage, and if you will be using retracts, you will need those to build the wing.

Cautions: Every experienced modeler has his favorite 'rules of thumb' concerning control systems and set-up. But remember, the Ultra-Sport 1000 is in a new size category, and some of the things that work fine on smaller (or larger) aircraft won't work here.

All of the hardware and accessories recommended on the plans and in the Bill of Materials have been tested and found to be adequate for a 12 lb, 100 mph airplane. Why take a chance on something else? The recommended control travels and CG were selected to provide responsiveness typical of a 60 in sport plane, without any nasty surprises. Use them for your first few flights, then adjust to your own preferences after you've gotten used to the airplane..."

Update 13/03/2019: Added PDFvector plan tracing and CAD file, thanks to AlanSinclair.

Direct submission to Outerzone.

Update 13/10/2019: Added kit review from Flying Models, July 1994, thanks to RFJ.

Update 14/04/2020: Added kit review from RCM September 1996, thanks to RFJ.

Update 08/02/2021: Added kit review from Model Builder, October 1994, thanks to RFJ.

Supplementary file notes

Article (in 2 parts), thanks to hlsat.
PDFvector format plan tracing.

CAD file

This plan is available for download in CAD format.


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Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - model pic


Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - pic 003.jpg
Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - pic 004.jpg
Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - pic 005.jpg
Ultra Sport 1000 (oz6295) by Jim Feldmann from RCMplans 1992 - pic 006.jpg

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Download File(s):
  • Ultra Sport 1000 (oz6295)
  • Plan File Filesize: 1614KB Filename: Ultra_Sport_1000_oz6295.pdf
  • Supplement Filesize: 1607KB Filename: Ultra_Sport_1000_oz6295_article_1.pdf
  • Supplement Filesize: 1592KB Filename: Ultra_Sport_1000_oz6295_article_2.pdf
  • Supplement Filesize: 1820KB Filename: Ultra_Sport_1000_oz6295_review_FM.pdf
  • Supplement Filesize: 2356KB Filename: Ultra_Sport_1000_oz6295_review_MB.pdf
  • Supplement Filesize: 3527KB Filename: Ultra_Sport_1000_oz6295_review_RCM.pdf
  • Supplement Filesize: 805KB Filename: Ultra_Sport_1000_oz6295_vector.pdf
  • CAD Zip Filesize: 299KB Filename: Ultra_Sport_1000_oz6295_CAD.zip
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