Electromaster (oz14260)
About this Plan
Electromaster. Radio control sport model, for electric power.
Quote: "Electromaster. Back in the mid-sixties I published a sport model design called the Schoolmaster (oz7534). Top Flite Models bought the design and kitted it. Over ten thousand models were bought. Maybe you had one.
lt was an easy model to build, and easy to fly. By today's standards it was underpowered: a Cox .049 Medallion with a throttle pulled it gently through the air.
In 1967, at the Toledo show, it was displayed with a three channel proportional control system marketed by Howard Bonner, called the RS, for Real Small.
As the demand for larger models and engines increased, the sales of 1/2A models declined. Some modelers put a Max .10 in the Schoolmaster, and made it very zippy. I liked the .049 powered job, because I like to fly on the wing, not the engine.
Along came electric power, with the relatively heavy motors and batteries as compared to glow engines. Also, lighter receivers and servos appeared. The combination of the two made it possible to have very acceptable performance by electric powered models.
What occurred to me was predictable. Why not make a Schoolmaster with electric power? So l did, and it flew very well, but it was readily apparent that, with a few modifications it could fly a lot better. Extend the wing, make it a taildragger, enlarge the tail feathers slightly..."
Direct submission to Outerzone.
Scan by MarkD, cleanup by Circlip.
Supplementary file notes
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-
(oz14260)
Electromaster
by Ken Willard
from RCMplans (ref:1054)
November 1989
47in span
Electric R/C Cabin
clean :)
all formers complete :)
got article :) -
Submitted: 29/11/2022
Filesize: 913KB
Format: • PDFbitmap
Credit*: MarkD, Circlip
Downloads: 868
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User comments
This may have been Ken's last published design. I don't remember anything after that. Ken passed away in '93. I built some of his Top Flite designs, Schoolboy, Schoolgirl, Roaring 20 back in the day. All flew well with ancient single channel gear. I still have a Roaring 20. You can't go wrong with any of his designs. This design, made for heavy motors and Nicad batteries, would be perfect for more modern equipment. If you leave the landing gear off, it will weigh less than a pound. Give it a try. I remember one of Ken's RCM articles about his appearance at the Top Flite booth, Toledo. His Top Flite designs were on display when a kid walked up and asked, "Did you design all of these"? Yes. "And do they pay you for them"? Yes. "Is that your Lamborghini outside"?Hell, I had to look it up in order to spell it. And so did I.
Doug Smith - 18/12/2022
It looks like the supplement got shorted to one page?
ecko - 19/12/2022
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- Electromaster (oz14260)
- Plan File Filesize: 913KB Filename: Electromaster_oz14260.pdf
- Supplement Filesize: 296KB Filename: Electromaster_oz14260_article.pdf
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