ORIGINAL: Taurus Flyer
Gents, about old radio’s for who is interested,
During the world champion ships in 1963 in Genk Belgium, the second place was for Frits Bosch using the German Telecont 9 radio system with tone filters and relays see picture 1. Both Ed (Orbit reeds radio) and Frits were beaten by Ralph Brooke with his Orbit early proportional, see picture 2.
It is possible that Ralph Brooke did use the early Orbit 5 + 1 analog proportional radio of which I show the pictures 3 and 4, you can see the coils in the receiver as part of tone filters to translate the audio frequencies I in a useable voltage, two coils and capacitors for each channel.
It is interesting to know Orbit “reeds” was beaten by Telecont 9 during (one of) the latest world championships with tip-tip radio using pilots.
And were these systems reliable? Of course and also the Man Machine Communication was much easier.
Cees
Ben,
Man Machine
Communication is common used in industry and of all shown systems it was much better than we see of the radios these days, only even then there were important differences.
Already in 1960, world champs in Bern, Switserland we see the European OMU Stegmaier (tip-tip) transmitter with dual functional stick with 4 positions, see picture 1. All later European systems did have the same feature, see pictures 2, 3 and 4.
Orbit reeds did have different switches for each control function even the latest models (I think) . Ed Kazmirski did use full throw for most pattern figures so maybe the best way to use the Orbit radio, but with European sticks you nearly did not have to move your thumbs so you probably were much faster and maybe for that reason the winner when compete.
And now?
MMC, is biggest problem (I think) “wrong model selected”, "wrong flight mode selected" or “wrong position of a switch selected”
Problems I never did have with my radio during pattern flying in the past, impossible.
(Classic) pattern flying we normally did with one (type of) plane and when you were lucky you have an identical spare one.
Old radios:
My pattern transmitter was custom prepared for the plane for all main functions, see the picture 5, 4 channel proportional with touchable trim levers in the front plate of both sticks (not somewhere else on the transmitter!), preselected 4 position flaps: negative, neutral, 1 positive (Shown) and 2 positive, important battery indicator, but no exponential, no dual rate, no adjustable direction or throw, no combination switches or mixers, just like playing a violin.
The antenna connector is a fat steel bolt and the case is 1,5 mm thick aluminum, not look-a-like.
Cees