Talk:Radio control

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I was a radio-control enthusiast as a teenager, and have some comments on the section referencing "Radio-controlled models": Some of the servo systems of the time (notably those from Kraft, PCS, Heathkit, and possibly others) used a variable capacitor instead of a potentiometer to develop the error signal on the theory that potentiometers deteriorate from the friction of the wiper on the resistive material, where a variable capacitor does not. Also, proportional systems were already in fairly widespread use as early as 1964. The model airplane club to which I belonged owned a communal reed system, but I have never actually seen one used. Everyone used either pulse proportional (also known as "galloping ghost" or "wagger") or digital proportional systems. If anyone has saved old issues of "Model Aircraft News" or "R/C Modeler" from that era (collectible items by now, I'm sure), the advertisements and product reviews should bear this out. Pete 02:03, 1 May 2006 (UTC) —Preceding unsigned comment added by Penguinpete (talk • contribs)

I have performed some informal research since my last entry on this topic, and found the reason that variable capacitors were abandoned in favor of potentiometers is that variable capacitors are affected by changes in humidity where potentiometers are not. Back in the day, a four-channel Kraft ran about $400 (1969 "Grocery Dollars", although they had been around for some years before then). Servos were approximately $40.00 each, and were routinely returned to the factory for repair/adjustment. These days, a six-channel Futaba with 4 servos lists for less than half of the Kraft system price, and represents a much smaller amount of "Adjusted Grocery Dollars". Servos are cheap enough that some models are considered to be disposable.--Pete 14:25, 16 June 2006 (UTC) —Preceding unsigned comment added by Penguinpete (talk • contribs)

Inaccurate reference & WP:EL violation
The reference link to therczone.com states that it is "one of the largest" radio control sites. Its core content is its forums (with ~150K posts). The largest RC sites are those such as RC Universe (~6M posts), RC Groups (~7.5M posts), RCTech (~3M posts), etc., a completely different scale. Also nearly all content on therczone requires registration. Suggest removing per the External Link guidelines. TheJANG 08:21, 20 June 2007 (UTC) —Preceding unsigned comment added by TheJANG (talk • contribs)

Cheap triband controllers
Hello, Any experts out there know how a cheap chinese radio controller, "full function", with triband works? These come in two flavors, 27 and 49 MHz and have a switch for A, B, or C band. With six cheap cars and controllers, three on 27 and three on 49, each on a different band, you can have six cars racing.

Note that these controllers are not proportional. So I'm guessing that these are simple PWM controllers. Anybody out there know for sure? Regards, Mike S. Virtecent 19:10, 22 October 2007 (UTC) —Preceding unsigned comment added by Virtecent (talk • contribs)

Radio Control Industry data...
I think this page needs specific data about the RC Industry as a whole. Total sales/revenue per year Total number of hobbyists ( I realize this varies, just want approx.) Which segment is most popular -cars, planes, boats, etc. Number of companies manufacturing RC products Anyone? —Preceding unsigned comment added by 63.77.95.90 (talk) 19:26, 5 March 2008 (UTC)

Possible additional information
It would be nice to see a list of the channels and frequencies in use here. There is so much confusion as to what conflicts with what else. My controller says it's 72.110, but the site I'm flying at has a board with numbers like 15 and 16; what's the relationship? Some of the less expensive models talk about channels A, B and C. How does this relate to the 72mhz range? What other ranges are in use in other places outside the US? 14:50, 12 March 2008 (UTC) Bob Nix —Preceding unsigned comment added by R.p.nix.mn (talk • contribs)

The first successful unmanned Powered drone
I have added the 1917 Aerial Target to the 'history section' with a reference to the IWM photograph as this is copyright.SamEllieJake (talk) 12:45, 25 April 2021 (UTC)
 * I reverted the entry because Wikipedia articles are not sourced to what can be derived from original research, i.e. what you can see in a photograph. Please see WP:PST. Fountains of Bryn Mawr (talk) 14:52, 25 April 2021 (UTC)