Senior Telemaster (oz5044)

 

Senior Telemaster - plan thumbnail image

About this Plan

Senior Telemaster - Radio control trainer/sport model. 2.4m wingspan version of the Telemaster, designed by Alex Engel. From RCM.

Quote: "First produced as a kit in Germany, only a few were exported to the US before the kit was discontinued. Reviewed in the April 1973 issue, the Senior Telemaster has become one of the most popular and sought-after designs in the country. RCM was fortunate to secure the publication rights to Alexander Engel's mangificent 95in span aircraft. A few minor modifications have been made to improve the structural integrity of the model, although little could be done to improve the outstanding flying characteristics of this magnificent aircraft."

Quote: (from 1973 review) - "The all-up weight of the model was slightly under 6 lbs which gave us approximately an 8-1/2oz wing loading! From that point on things began to happen! We can say, unequivocally, that the Senior Telemaster is one of the most enjoyable aircraft we have ever flown. The ailerons, when used alone, are relatively ineffective on that huge wing, and thus the Telemaster required coordinated turns using both rudder and ailerons in conjunction with the elevator. The take-off run with a .60 is approximately three feet, and from then on in the Senior Telemaster flies like a full size light plane. It is capable of doing most of the maneuvers and could carry any type of payload you wanted to include, such as a movie or still camera and the like. And, no matter where the Telemaster was taken, it was an instant hit! One modeler at a local flying field went to sleep under the starboard wing since it was the only shade available, while other modelers complained that a low pass by the Telemaster created a dark shadow on the flying field and made their spot landings difficult to observe. After a while the reactions of the modelers at any field could be predicted. The first comment would be - 'You've got to be kidding!" followed by a short and somewhat sarcastic chuckle. After a demonstration flight, their reaction changed to - 'Where can I get one?'"

Direct submission to Outerzone.

Update 18/10/2016: Added article pages, thanks to Bernd_57.

Supplementary file notes

Article pages, text and pics.
RCM review (from 1973) thanks to Tenbars.

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Senior Telemaster - completed model photo

Datafile:
  • (oz5044)
    Senior Telemaster
    by Alex Engel
    from RCMplans (ref:616)
    October 1975 
    95in span
    Tags: IC R/C Cabin Trainer
    all formers complete :)
    got article :)
  • Submitted: 13/11/2013
    Filesize: 791KB
    Format: • PDFbitmap
    Credit*: Bernd_57

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User comments

I've flown several of these over the years and it's true, nothing flies like a Telemaster. The original German kit became unavailable when the Germans were unable to get the wide 48" balsa sheeting for the wing. Hobby Lobby (now Hobby Express) arranged to have the kit made in the USA instead, and this is the version in the RCM plan. They substituted thin strips for the leading edge sheet and just left the trailing edge out, using strip ailerons instead of barn doors. But it still flies like a Telemaster. It will take off (and land) crossways to the runway, and you need to do this in a stiff wind or it will get blown over in anything more than a gentle breeze. It will teach you how to use the rudder to co-ordinate your turns just like in a Cub, and you'll learn how to keep one wing down in a crosswind takeoff. Side slips are a lot of fun because the Telemaster is the perfect plane for one wheel landings. I flew one of the ARF versions covered with some kind of LizardKote, not the real thing, which wasn't stiff enough and the whole wing fluttered when I got it too fast, which it will do with any 60 engine. I suggest wing covering with MonoKote only, not the softer stuff for added stiffness. Go ahead and try one, you can't go wrong, electric is no problem either.
DougSmith - 05/07/2015
Photo of my Senior Telemaster, which I built in 2017 [more pics 006]. Overpowered with an OS 70 Surpass.
RobR - 04/10/2017
This is my Senior Telemaster from RCM plans [more pics 007, 008]. It flies extremely well on an OS 91 FS.
TomComo - 26/04/2018
Sr. Telemaster [more pics 009-012]. Rebuilt by me in the late '70s. Powered by a K&B .61 with a special muffler of my own design, it is a superb flyer. With the flaps extended it will fly very slowly. Running a 12" x 4' Top Flite prop the climb is spirited, to say the very least. I covered the model in red Super Monokote with the white cross of Switzerland on the tail winch allowed me to use HB-PDP as the license number. PDP stands for "Perry Directional Porting" which was a power enhancing modification for cross scavenged two stroke engines. I'm afraid that PDP is lost in history.
JeffBreece - 03/08/2018
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Download File(s):
  • Senior Telemaster (oz5044)
  • Plan File Filesize: 791KB Filename: Senior_Telemaster_oz5044.pdf
  • Supplement Filesize: 4377KB Filename: Senior_Telemaster_oz5044_article.pdf
  • Supplement Filesize: 549KB Filename: Senior_Telemaster_oz5044_review.pdf
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Notes

* Credit field

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Scaling

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