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J. Roberts 3-line handle

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J. Roberts 3-line handle

Post  roddie on Sun Sep 01, 2013 5:27 pm

Remember these? I can't remember where I got this... It's never been used.

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Re: J. Roberts 3-line handle

Post  roddie on Sun Sep 01, 2013 6:40 pm

A "retro-version" of this handle is avail. if your looking for one... Not $6.95 any more...

http://brodak.com/handles.html
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Re: J. Roberts 3-line handle

Post  duke.johnson on Sun Sep 01, 2013 11:23 pm

We have a bunch of these, we fly carrier contest. We have another next weekend. I even have a Cox version that a friend mailed to me not long ago.
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Re: J. Roberts 3-line handle

Post  roddie on Sun Sep 01, 2013 11:49 pm

duke.johnson wrote:We have a bunch of these, we fly carrier contest.  We have another next weekend.  I even have a Cox version that a friend mailed to me not long ago.
Yes! Hi Duke... I'd love to see a pic of that handle. I saw your plane in this thread...

(3rd post down)

https://www.coxengineforum.com/t3865p20-throttle-backplate?highlight=throttle

and was AMAZED! I had always imagined a 1/2A carrier model, but had never heard of or seen one... until YOURS! It's SWEEEEET!!!

I posted an Ace venturi throttle vid. awhile back, and wondered if you'd seen it? It would be nice in a "built-up fuse" model, but you could build it into the firewall of a profile. Have you tried that throttle? You'll get w.o.t. and real low rpm's out of it if you set it up right, using a muffler. Incidentally; the muffler in the vid. is one I designed (see my posts below) I sent Bernie a "build-article" and photos for his Sept. emag. issue; per his request.

https://www.coxengineforum.com/t5486-049-reed-valve-venturi-throttle

https://www.coxengineforum.com/t5505-a-cheap-sport-muffler
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Sturdi-Built Model Mfg./Jim Walker models

Post  roddie on Wed Apr 18, 2018 9:10 am

I thought I'd share a little more info. on my J. Roberts Flight-Control and some recent photos of an original pamphlet that came in the box. The images are all high-resolution (1200 x 1600 dpi) and can be zoomed for reading any fine-print legibly.

First; some better photos of the handle..




the packaging..




the accompanying pamphlet..




Those 1/2A C/L models using the foam-wings could probably be scratch-built with "Ace" cores and a set of plans.. if you had them.
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Re: J. Roberts 3-line handle

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