E-flite Cessna 150
Here is a look at the micro radio system (above left) that works best with the Cessna. The quarter gives an idea of the size. Note also the ESC adapter that interfaces between a standard servo cable and the JST-ZHR connectors. The blue arrow (above right) points to the computer shorting
plug that’s more effective than the suggested tweezer method of binding the receiver. The receiver and wires snug into the receptacle (below left) on the firewall without need for any fasteners. A small file removes the slight ridge at one of the corners of the DS35 servo bracket (below right).
female connector. To interface with the AR6300 Nanolite receiver an adapter (SP- MAJST1UL) is required to mate the stan- dard ESC receiver cable with the JST-ZHR connector board on the receiver. There is a Spektrum Y harness (SPMYHJST3UL) with the JST-ZHR connectors that can be used with the two aileron servos. The only drawback to this very light-
weight ultra micro system is availability. Trying to find servo extensions was difficult. Some stores didn’t even know about them and others didn’t stock them as a regular
item. Some others were out of stock and back ordered. E-flite’s DS35 servos demonstrated their
power for the control surfaces and their good resolution. They also come with a really healthy assortment of servo arms. There was one instance in the 150 assembly where the standard servo arm was substituted for the stock arm that comes equipped with the servo.
Mounting the servos is unique. At either
end of the servo there are two plastic pins that engage corresponding holes in a nylon
“U” shaped bracket that comes with each servo. It was very difficult to get the servo into the bracket and I tried a number of slight modifications to do so. What I finally discovered as the problem was a very slight ridge on the long stretch of the “U” at each 90° corner. The ridge interfered with the fit. Sanding the ridge away in each corner al- lowed the servo to engage the pins securely. One of the pictures will show the position of that ridge. Binding the Nanolite is the same process employed with JR and Spektrum radios. A
There’s no need for the supplied ply spacer if the Park 280 shown (above left) is used. With the 280 installed, half throttle gave a comfortable cruise.
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Note how the battery and its lead are positioned (above right). That provides easy access through the bottom fuselage hatch, plus proper c.g.
MAY 2012
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