Kadet Junior (oz8572)


Kadet Junior (oz8572) by Claude McCullough 1980 - plan thumbnail

About this Plan

Sig Kadet Junior. Radio control sport / trainer model. Discontinued kit from Sig.

See supplement file for complete kit manual, at 32 pages.

Quote: "The Kadet junior is a reduced size version of the famed Kadet (oz2950), designed specially for 2 and 3 channel flying. It has the same fine flying characteristics of Its larger buddy and is intended for beginners learning to fly or for all round sport and fun flying. While the frame work may seem at first glance to be more complicated than some competing models, we believe this illustrated, step-by-step book will make it just as easy for novice builders. The model is strong and light because of this slightly more complex structural design and you will find the small extra assembly time will worth the improved performance and durability.

RADIO EQUIPMENT REQUIREMENTS: Selection of radio equipment should be based on the amount of money you wish to spend, the type of airplanes you intend to be flying and your future goall. If you plan to stay in the hobby and work up to larger airplanes with complete controls. It might be best to consider purchase of a four, or more, channel set In the beginning. It could be used with three servos to fly the Kadet Junior and later Installed in an intermediate aileron trainer like the Sig Komander or Kavalier with the simple addition of another servo. This would eliminate the necessity of disposing of an initial Investment in beginner's equipment of less than 4 channels and buying a new set when your flying skills are ready for an advanced model. Use of 3 channel of control gives the best results with the Kadet Junior. One or two channel equipment can be used with less flexibility in control. On one channel, use rudder control only. For two channels use rudder and elevator.

ENGINE SIZE: The prototype Kadet Juniors were flown with the K&B .19, Fuji .19 and OS .25. On less than 3 channels a .15 cu. in. engine is adequate and, if the model is not overweight, on 3 channels also. Remember that a muffler will reduce engine power and allowance should be made for this. If you live at high altitude engines will not develop power equivalent to that delivered at sea level. Beginners should fly .19 and .25 powered Kadet Juniors with the engine throttled back after takeoff until they are familiar with the airplane and have some flying time. On two channels, throttle .19 and .25 engines back by locking the carburetor in the desired position. Size .15 engines on 2 channel models can be flown at full throttle."

Hi, Steve; Attached are the plansheet and build manual for SIG's kit RC-46 Kadet Junior. 48in wingspan trainer, for .15-.25 two-stroke, or .25-30 4-stroke, and three channel operation (no ailerons). Designed by Claude McCullough. SIG hasn't produced the kit in years, no parts are available, but the manual is available for download.

Direct submission to Outerzone.

Update 13/04/2020: Added kit review from RCM November 1981, thanks to RFJ.

Supplementary file notes

Kit manual. 32 pages, complete with pics.


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Kadet Junior (oz8572) by Claude McCullough 1980 - model pic

  • (oz8572)
    Kadet Junior
    by Claude McCullough
    from Sig (ref:RC-46)
    48in span
    IC R/C Cabin Trainer Kit
    clean :)
    formers unchecked
  • Submitted: 28/03/2017
    Filesize: 1452KB
    Format: • PDFbitmap
    Credit*: jmdauge
    Downloads: 5924

Kadet Junior (oz8572) by Claude McCullough 1980 - pic 003.jpg
Kadet Junior (oz8572) by Claude McCullough 1980 - pic 004.jpg
Kadet Junior (oz8572) by Claude McCullough 1980 - pic 005.jpg
Kadet Junior (oz8572) by Claude McCullough 1980 - pic 006.jpg
Kadet Junior (oz8572) by Claude McCullough 1980 - pic 007.jpg

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User comments

Hello, Attached are some pics of the Kadet Junior [main pic, 006, 007] you can use on your terrific webpage. Thanks,
John Bergsmith - 06/07/2023
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Download File(s):
  • Kadet Junior (oz8572)
  • Plan File Filesize: 1452KB Filename: Kadet_Junior_48in_oz8572.pdf
  • Supplement Filesize: 2502KB Filename: Kadet_Junior_48in_oz8572_manual.pdf
  • Supplement Filesize: 3249KB Filename: Kadet_Junior_48in_oz8572_review.pdf
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