Pal Joey (oz4719)


Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - plan thumbnail

About this Plan

Pal Joey. Sport model for rudder-only radio control with .75 to 1.5 engine.

Quote: "EXPRESSLY designed for such engines as the Cox Medallion .049, Pal Joey is a rugged, rather docile and easy-to-fly sports model. Weighing 21 ounces with a relayless transistorised receiver (3 volt Kraft in picture), Pal Joey has 290 sq in a wing area for an approximate wing loading of 10-1/2 oz/sq ft and a power loading of about 430 oz per cu in.

Pal Joey is not, and is not meant to be a contest type machine. It does not have the requisite ballooning tendencies for so called stunts - the bane of all beginners and sport fliers in wind. The experienced flier can modify the set-up as he sees fit. Rudder control is enough to ensure turn capability when gliding straight downwind in a 10 mph breeze.

Considerable down and side thrust is used. With generous lift, downthrust is essential - in this case - to handle trim difference between power off and on airspeeds, and for into wind flight. Side thrust is usually exaggerated with shoulder wings having a high thrust line. There is not much decalage; but anyway, the model is stable. Trimming out a tail heavy condition by shimming the wing (tail being fixed) is nor recommended in this instance - better to add weight to the nose.

Rudder movement, hence power, requires strict adherence to Elmic escapement instructions - and depends on CG position, weight, etc. Supply for the 3V receiver - common voltage for radio and actuator - is a DEAC 225-mah 3-cell pack, yielding 3.6 volts - more probably after charging. Some brands of receivers won't oscillate in every instance, or become obstinately erratic, at more than 3-and-a-fraction volts specified, so follow manufacturers' directions..."

Supplementary file notes

Article, thanks to brokenenglish.


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Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - model pic


Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - pic 003.jpg
Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - pic 004.jpg
Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - pic 005.jpg
Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - pic 006.jpg
Pal Joey (oz4719) by Bill Winter from Aeromodeller 1963 - pic 007.jpg

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User comments

Hello Outerzone hope you’re all well? Just a few photos of my latest build, Pal Joey [main pic, 003-005]. Been on my build list for at least 45 years! Finally got there. Power 1.5 cc AM , RC home made single channel Singlet set. The booklet is in the Outerzone library. Not that difficult to make. Probably never get round to flying it due to athritis in hands and back! Never mind still enjoy the build.
Best regards,
Tony Wright - 14/10/2020
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