the scoring was changed to deemphasize
high speed. For good or for ill, that was
also the first year that a Profile model
was hung on its propeller for slow speed
at the Nats. The original scoring system
has been retained in the unofficial
Nostalgia Navy Carrier events of the
Navy Carrier Society (NCS).
I am writing this column in July and
the next major changes to the Carrier
rules are currently being discussed. In
addition to the possibility of adding
Electric Carrier (E-Carrier) events to
the AMA rulebook, one of the biggest
potential changes may be the inclusion
of RC technology for controlling
auxiliary functions on Navy Carrier
To find out the results of the voting
on various rules proposals, check the
Competitions section of the AMA
website. By the time this column is
published, the results will be available.
The 2. 4 GHz spread spectrum RC
technology is being tested in some areas
to gather data for the decision on adding
such technology to Navy Carrier flying.
There is a photo this month of Tony
Naccarato’s Profile Carrier MO- 1, which
uses radio control to operate the throttle.
The first time I saw Tony fly a Carrier
model with a radio-controlled throttle
was approximately four years ago in
A new model making the Carrier
competition scene this year is pictured in
this column. Wayne Buran has produced
a Fairey Firefly in the T- 2 trainer variant.
The Firefly served the British Royal
Navy during World War II and beyond
as a fighter and reconnaissance aircraft.
I’m fond of the Firefly and built one for
Class I in the early 1970s.
Wayne’s Firefly has a 41-inch
wingspan and a 33-inch fuselage. Power
is from an Irvine . 36 fitted with an O.S.
4BK carburetor and turning an APC 9 x
6 propeller. The model is equipped with
a Brodak three-line control system.
Electronic throttle controls were part
of my last column, but I failed to give
details of the system. Clancy Arnold
makes the U/Tronics systems, which
use a 10k potentiometer as an input
device and produce an output signal
compatible with standard RC servos or
There are two common methods for
using the U/Tronics system for Carrier,
Pete Mazur’s U/Tronics handle is
depicted. He houses the U/Tronics
unit in the handle along with batteries
and connects the potentiometer to the
throttle control of a handle that mimics
the configuration and feel of a standard
mechanical three-line handle.
In Pete’s application, the signal drives
an ESC directly in a Class I F8F Bearcat
for Class I E-Carrier flying. The same
system could drive a servo to control an
internal combustion engine.
Another common practice in
E-Carrier flying is to use a standard
mechanical three-line system with the
throttle arm of the bellcrank connected
to the potentiometer as I described in
my July column. In such a system, all of
the electronics are in the model. Contact
information for Clancy Arnold is at the
end of this column.
Pete Mazur’s handle for
E-Carrier. The boxes contain
batteries and the U/Tronics
engine speed-control circuit.
136 Model Aviation OC TOBER 2012 www.ModelAviation.com
CL NAVY CARRIER