[ARC5] Biggest Radio Controlled boat?

[Glen Zook]

Control may have been like the old "rudder only" control on model airplanes from the 1940s and 1950s.  There was a "stepper" circuit that was activated every time a carrier was received.  Starting at the center position one pulse would cause the rudder to go one direction (say right).  The next pulse would return the rudder to center.  Then, the next pulse would cause the rudder to go to the other side (say left).  The next pulse would return the rudder to center.  And so forth.  If the rudder was in the center and it was necessary to go left when the next pulse would be right, then the signal would be pulsed 3-times.
 
Glen, K9STH


Website:  http://k9sth.com


________________________________
 From: "w8au at sssnet.com" <w8au at sssnet.com>ndoubtedly spark-gap transmissions picked up by what looks like an IP-501

LF crystal receiver, with maybe a one tube audio amp internal.  Control
may have been by changing the tone of the spark by varying the speed
of the rotary gap on the other ship's transmitter.

Wonder if this was ever explained in one of the AWA newsletters?