A couple of problems with the fit out. A constant glitching problem was finally cured when I replaced the Hitec Dual Conversion Receiver with a Futaba equivalent. Now running sweetly with an F14 Transmitter.
The other problem... now call me a Donut if you will but...I have been having trouble getting the front hydroplane mechanism to work properly. It deploys and retracts fine, but the servo that alters the hydroplanes pitch once deployed doesn't work. I have checked the soundness of the connections, all good. Continuity checked the cables, replaced the servo ( since found to work perfectly! ), printed out the wiring diagram, colourized it and have been staring at it blankly for many an hour, and so on.
however there may be light at the end of the tunnel. I have a 3 position momentary switch on the transmitter controlling the functions and all I get out of the servo is a glitch when the planes first deploy fully, I then let go of the momentary switch and the the control goes to the mid position, disconnecting any power to the three relay block which controls everything, now for the donut bit!!
Should I be using either a latching three position switch on my transmitter or maybe even a two position switch, leaving the system energized in either Deployed or Retracted, leaving the Engel electrics to do the rest of the work, enabling or disabling the hydroplane servo? If so, its a proper DONUT moment as I have been staring at the problem, prodding it with a multimeter etc for the best part of four hours.